Solutions Search - Signal Conditioning
DC2473A - LTC6419 - Dual Differential Amplifiers / ADC Drivers
Mar 15th 2017
Demonstration circuit 2473A features the LTC®6419 Dual Differential Amplifier/ADC Driver. It incorporates a variety of passive components to support configurations for varied applications. These fully-differential amplifiers accept single-ended or differential input with almost no difference in distortion performance.
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Improving Linearity by Using Absorptive Filters
Mar 10th 2017
Introduction:
When driving a direct sampling high speed ADC, the most likely place to degrade the performance is the interface between the final amplifier and the ADC. With any direct sampling ADC there will be nonlinear charge produced in the sampling process. This charge is reflected into the input network each time the sampling ...
Rail-to-Rail Op Amps Feature Precision & Power Efficiency
Feb 28th 2017
MILPITAS, CA – February 28, 2017 – Linear Technology introduces the LTC6258/59/60 and LTC6261/62/63, single/dual/quad op amps, extending its line of power efficient, low noise, precision operational amplifiers. These devices are part of a family of power efficient op amps ranging from 1.3MHz GBW product at 20µA ...
LTC6261 Second Order Bessel Filter
Jan 17th 2017
The LTC®6261/LTC6262/LTC6263 are single/dual/quad operational amplifiers with low noise, low power, low supply voltage, and rail-to-rail inputs and outputs. They are unity gain stable with capacitive loads up to 1nF. They feature 30MHz gain-bandwidth product, 7V/μs slew rate while consuming only 240μA of supply current ...
LTC6261 Third Order Butterworth Filter
Jan 17th 2017
The LTC®6261/LTC6262/LTC6263 are single/dual/quad operational amplifiers with low noise, low power, low supply voltage, and rail-to-rail inputs and outputs. They are unity gain stable with capacitive loads up to 1nF. They feature 30MHz gain-bandwidth product, 7V/μs slew rate while consuming only 240μA of supply current ...
DC2487A - LTC6363 Rail-to-Rail SAR ADC Driver Amplifier
Jan 10th 2017
Demonstration circuit 2487A features the LTC®6363 amplifier. The DC2487A is designed to drive the inputs of the DC2290A demo board. The DC2290A features the LTC®2387 18-bit, 15Msps high speed SAR ADC. The linearity and low noise of the LTC6363 make it an ideal candidate to drive the LTC2387 at frequencies up to 100kHz.
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High Linearity, Low Noise LTC2387-18 Drivers for Sinusoidal Signals
Jan 10th 2017
Introduction
The LTC2387-18 is a high speed SAR (Successive Approximation Register) ADC suited for high linearity, low noise applications. This ADC is capable of sampling at up to 15Msps, which allows it to convert signals at frequencies of several MHz. It is well-suited to convert both pulsed and continuous signals in this ...
DC2414A - Un-Populated Demonstration Circuit; Supports 3 Channels of LTC6268 & LTC6268-10/LTC6226X
Jan 3rd 2017
Demonstration Circuit 2414A has layouts for three channels of SOT-23 transimpedance amplifiers. Each of the three layouts applies different techniques achieving various parasitic feedback capacitances (CF). The upper channel, U3, assumes a low Transimpedance gain, has a parasitic CF of 0.1pF, and provides a footprint for an ...
Precision Voltage Reference Drives Up to 200mA, Achieves 0.1ppm/mA Load Regulation & 10ppm/°C Drift
Nov 3rd 2016
Dual Output, High Current, Low Noise,Precision Voltage Reference
MILPITAS, CA – November 3, 2016 – Linear Technology announces the LT6658, a precision voltage reference that incorporates two high current output buffers. Based on a 2.5V bandgap voltage reference, each output can be separately configured for any voltage ...
Precision Dual Output, High Current, Low Noise, Low Drift Reference
Nov 1st 2016
Precision and mixed signal applications usually require a voltage reference and at times several regulators or LDOs to support the analog circuitry. Separate regulators isolate the analog supply, digital supply and the voltage reference. The voltage reference supports the reference inputs of DACs and ADCs, and other devices ...
DC2432A - LT6658 Demo Board | Low Noise, High Current, Precision Reference
Oct 24th 2016
Demonstration circuit 2432A features the LT®6658, a precision 2.5V dual output reference that combines the performance of a low drift low noise reference and a linear regulator. Both outputs are ideal for driving the precision reference inputs of high resolution ADCs and DACs, even with heavy loading while simultaneously ...
Tuned IF Amplifier Applications
Oct 21st 2016
Introduction
The LTC6431-20 and LTC6433-15 are single-ended RF / IF gain block amplifiers that feature very high OIP3 with low noise and a gain of 20dB and 15dB respectively. The unique combination of high linearity, low noise and low power dissipation make this an ideal candidate for many signal-chain applications. These fixed ...
Hybrid Wide Dimming Ratio Linear LED Current Controller Using LT8614 & LT3083/LT6015
Oct 17th 2016
Many applications for LED illumination require wide dimming ratios. This can be accomplished simply via an adjustable current source as show below. The current source can be varied by a number of different means, and a large LED current range can be achieved. The primary problem with this technique is that the power dissipation ...
Op Amp Precision Positive & Negative Clipper using LT6015/LT6016/LT6017
Oct 3rd 2016
It can be a challenge to match the voltage range of an analog signal to the input range of an analog to digital converter (ADC). Exceeding the ADC’s input range will give an incorrect reading, and if the input goes far enough beyond the power supply rails substrate currents can flow into the ADC which can cause latch up ...
Single-Ended to Differential Driver Circuit for the LTC2387-18 SAR ADC
Sep 26th 2016
The LTC®2387-18 is a 15Msps, highly linear, low-noise SAR converter with differential inputs. The combination of excellent linearity and wide dynamic range makes this ADC ideal for high speed imaging and instrumentation applications. No-latency operation provides a unique solution for high speed control loop applications. ...
DC266B-B - LTC1562CG-2 | Very-Low-Noise, Low Distortion Quad Universal Filter
Sep 23rd 2016
Demonstration circuit DC266B-A is for the evaluation of 8th order filter circuits using an LTC1562 (no dash) and DC266B-B for an LTC1562-2. LTC1562 and LTC1562-2 are quad 2nd order active-RC filter building blocks. Each 2nd order section has an integrator trimmed with internal capacitors and resistors to 100kHz and 200 kHz for ...
LTC2387 Drivers Part III: Trans-Impedance Amplifier/Driver
Sep 8th 2016
This is unabashedly a classic case of what marketing calls “a solution looking for a problem”. It is an example of how the full SNR of the LTC2387 may be realized for a real world signal. Most signals originating in low level circuitry, in sensors, or in the real world, will require significant gain to develop 8Vp-p ...
Build a Precision Low Noise 5A Power Supply
Sep 6th 2016
The LT6658-2.5V voltage reference has the specifications of a precision reference with dual outputs capable of 150mA and 50mA. This unprecedented combination of precision and power allows the unique ability to create a very precise high-current power supply with load regulation of less than 12ppm/A. Only a few additional components ...
I2C Primer: What is I2C? (Part 1)
Sep 2nd 2016
Introduction:
The Inter-Integrated Circuit (I2C) bus is a two wire serial interface originally developed by the Phillips Corporation for use in consumer products. It is a bi-directional bus that is easily implemented in any IC process (NMOS, CMOS, bipolar) and allows for simple inter-IC communication. Connections are minimized ...
36V Ultralow Noise Precision Op Amp Features 30nVP-P 0.1Hz to 10Hz Noise
Aug 17th 2016
MILPITAS, CA – August 17, 2016 – Linear Technology introduces the LT6018, a precision op amp featuring 30nVP-P 0.1Hz to 10Hz noise and 50μV max input offset voltage. Designed especially for applications sensitive to low frequency noise, the LT6018 has a very low 1/f corner frequency of less than 1Hz. The low input ...
Anti-Alias Filter for 24-bit ADC
Aug 3rd 2016
For many ADC applications a simple RC filter at the buffer input will provide adequate anti-alias filtering. For applications that require a higher order filter an active filter is often used. The active component in that filter must have sufficient bandwidth, fast settling, low noise and low offset so that it doesn’t ...
LTC6244 High Speed Peak Detector
Aug 1st 2016
Introduction
Peak detectors capture the extrema of the voltage signal at its input. A positive peak detector captures the most positive point of the input signal and a negative peak detector captures the most negative point of the input signal. Ideally the output of the peak detector circuit tracks or follows the input voltage ...
15dB Gain Block Delivers 47dBm OIP3 Linearity with Low Noise from 100kHz to 1.4GHz
Jul 21st 2016
MILPITAS, CA – July 21, 2016 – Linear Technology announces the LTC6433-15, a wideband 15dB gain block amplifier offering outstanding linearity of 47dBm OIP3 (output third order intercept) and 3.22dB noise figure at 150MHz. The amplifier has excellent OP1dB (output 1dB compression point) of 19.2dBm. The LTC6433-15 ...
DC338B-B - LTC1563-3CGN Demo Board | Universal Lowpass Filter
Jul 12th 2016
Demonstration circuit DC338B-A is for the evaluation of filter circuits using an LTC1563-2 and DC338B-B for an LTC1563-3. LTC1563-2 and LTC1563-3 are dual 2nd order active RC filter building blocks with precision ±1.5% capacitors. The LTC1563-2 uses six equal value resistors to implement a 4th order Butterworth lowpass ...
DC338B-A - LTC1563-2CGN Demo Board | Universal Lowpass Filter
Jul 12th 2016
Demonstration circuit DC338B-A is for the evaluation of filter circuits using an LTC1563-2 and DC338B-B for an LTC1563-3. LTC1563-2 and LTC1563-3 are dual 2nd order active RC filter building blocks with precision ±1.5% capacitors. The LTC1563-2 uses six equal value resistors to implement a 4th order Butterworth lowpass ...
Baseband Design Example for LTC5589/LTC5599 Low-Power IQ Modulator
Jul 1st 2016
Introduction
This basic low power modulator was described in the LT Journal Nov 2015 article. In this blog post, we will show how to:
Use simulation to validate the filter design, and
Reduce DC offsets by utilizing Differential Amplifiers for the baseband drive.
Also shown are some miscellaneous tips to help complete ...
LT6703 AC Line Overcurrent Indicator
Jun 4th 2016
Circuit Description
This circuit design is to monitor the average current in an AC line-connected load and to illuminate an LED if it exceeds a specified level.
µPower, Low Voltage Comparator with Reference
The basis of this design is the LT6703-2 which combines a micropower, low voltage comparator with a 400mV reference ...
How to Drive the LTC2387 (Part 1): Signal Applications to 5MHz that Require Low Inter-Modulation Distortion
May 13th 2016
The biggest challenge in driving a 15Msps, 18-bit ADC with an 8Vp-p input range is the lack of integrated amplifiers with adequate bandwidth, low noise, and the required output excursion. There are low-noise, high-BW amplifiers than can produce 2VPP. There are low speed amplifiers than can produce 8VPP. For low distortion beyond ...
High Accuracy, μPower, Over-Voltage Detector with Glitch Suppressor Using LTC1541 and LTC6994
May 4th 2016
An overvoltage detector which suppresses glitches is constructed from the LTC®1541 micropower op amp + comparator + voltage reference and LTC6994-1 TimerBlox® delay block/debouncer. In this circuit, the LTC1541 comparator detects power rail overvoltage conditions (including glitches). The built-in op amp inverts this ...
Common Questions About the LTC2668 Family of 16bit VOUT DACs
Apr 19th 2016
The LTC2668-16 packs 16, 16-bit high performance Digital to Analog converters (DACs) into a tiny, 6x6mm QFN package, with 8 and 4 channel versions in a 5x5 QFN, and 12-bit versions for lower resolution applications. A general purpose DAC such as this finds its way into a myriad of diverse applications, and tends to generate ...
DC2402A - LT6237 ADC Driver Board | Driver for LTC2387 family, Input Frequencies up to 8kHz
Apr 14th 2016
Demonstration circuit 2402A features the LT®6237 amplifier. The DC2402A includes two of these amplifiers and is designed to drive the inputs of the DC2290A demo board. The DC2290A features the LTC2387 18-bit, 15Msps High Speed SAR ADC.
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Audio Spectrum Analyzer with the Linduino
Apr 12th 2016
There are several methods for implementing a spectrum analyzer. I’ve been working with SAR ADC products for some time, and using the Fast Fourier Transform (FFT) for spectral analysis on a daily basis. Another common method for implementing a spectrum analyzer is called the swept-tuned receiver. This method involves mixing ...
Voltage Reference: Performance Plus Features
Mar 28th 2016
Demand for higher performance in mixed-signal circuits requires ever-better voltage references. But the highest-performance references of yesterday aren’t suitable, as they are generally simple products with few additional features.
With the development of high-performance bandgap references, plus improvements in process ...
A New Era in Space Products - Radiation Tolerant
Mar 23rd 2016
Recent developments have made doing business in space ever more achievable to a broadening base of companies. A market previously consisting solely of major defense contractors and national governments has been disrupted by a growing list of commercial companies determined to deploy an enterprise beyond the confines of our ...
High-Voltage Amplifier Extends Coulomb Counter Range to +/-270V
Jan 22nd 2016
Introduction
A coulomb counter can measure charge that flows into or out of a battery. Small, dedicated devices such as LTC2941 or LTC2943 can directly interface with low to medium battery voltages, up to about 20V. You can extend the input operating range of the measurement circuit by using a high-voltage amplifier as a level ...
±270V Common Mode Difference Amplifier Features 97dB Min CMRR, ±35ppm Max Gain Error
Jan 11th 2016
MILPITAS, CA - January 11, 2016 - Linear Technology introduces
the LT6375, a
unity-gain difference amplifier with integrated precision matched
resistors, which precisely level shifts and buffers small
difference signals while rejecting up to ±270V common mode. The
A-grade version achieves unprecedented performance: CMRR is ...
LT8714 300kHz, Bidirectional 1A Current Source
Dec 17th 2015
The LT®8714 is a synchronous PWM DC/DC controller designed for a four quadrant output converter. The output voltage cleanly transitions through zero volts with sourcing and sinking output current capability. ...
LTC6268-10 Oscilloscope Differential Probe
Dec 1st 2015
The LTC6268-10 is a single 4GHz FETinput operational amplifier with extremely low input bias current and low input capacitance. It also features low input-referred current noise and voltage noise making it an ideal choice for high speed transimpedance amplifiers, and high-impedance sensor amplifiers. It is a decompensated op ...
DC2319A-A - LTC6363 Differential Op Amp/ADC Driver Demo Board
Nov 10th 2015
The LTC®6363 is a low power, low noise differential op amp with rail-to-rail output swing and good DC accuracy. The amplifier may be configured to process a fully differential input signal or to convert a single-ended input signal to a differential output signal. The differential outputs of the DC2319A can be configured ...
Parameters that Affect Comparator Propagation Delay Measurements
Nov 4th 2015
One of the key specifications for a comparator is propagation delay - the amount of time it takes for a signal propagate from the comparator input to the output. Whether as a threshold detector in a battery powered application, or on a high speed signal processing board, the comparator's propagation delay is often the first ...
DC2443A - LT6375 High VCM Diff Amp Demo Board
Nov 2nd 2015
Demonstration Circuit 2443 is a Configurable High Voltage Amplifier featuring the LT®6375.
This demo board translates a high common mode signal to an output related to a low voltage reference level. The demo circuit is equipped with jumpers to facilitate setting the pin-strapped internal divider ratio configuration. The ...
Wide Common Mode Range Current Sensing
Oct 21st 2015
The LT6375 difference amplifier enables very accurate wide common mode current sensing applications. Its superior performance compared to alternative industry standard difference amplifiers translates into better accuracy in demanding current sensing measurement applications.
The LT6375 is a flexible general purpose difference ...
Industry's Lowest Drift Bandgap Voltage Reference Features 1.5ppm/°C Max & 0.5ppmP-P of Noise
Oct 19th 2015
MILPITAS, CA - October 19, 2015 - Linear Technology announces
the LT6657, a family
of ultra-stable bandgap voltage references that exhibits less than
1.5ppm/°C of temperature drift. Reinforcing this groundbreaking
performance, the LT6657 has only 0.5ppmp-p of low frequency noise,
less than 30ppm of long term drift and 35ppm ...
Altera Arria 10 SoC Development Kit
Oct 5th 2015
The Altera® Arria® 10 SoC Development Kit offers a quick and simple approach for developing custom ARM® processor-based SoC designs. Design productivity is one of the driving philosophies of the Arria 10 SoC architecture. The Arria 10 SoCs offers full software compatibility with previous generation ...
Low Power, Precision Op Amp Simplifies Driving of MUXed ADCs
Oct 2nd 2015
Design Note 1034: Introduction
The high speed op amps required to buffer a modern 16‑/18-bit analog-to-digital converter (ADC) typically dissipate as much power as the ADC itself, often with a maximum offset spec of about 1mV, well beyond that of the ADC. If multiple multichannel ADCs are required, the power dissipation can ...
Precision Differential Amplifier Drives 20-Bit ADCs Consuming Less than 2mA
Sep 24th 2015
MILPITAS, CA - September 24, 2015 - Linear Technology introduces
the LTC6363, a low
power, high precision, fully differential amplifier optimized for
driving high performance 16-, 18- and 20-bit SAR and ΔΣ ADCs.
Featuring 100µV maximum input offset voltage and 2.9nV/√Hz
input-referred voltage noise, the LTC6363 consumes ...
New LVDS Output Comparators Toggle Beyond 890Mbps
Sep 23rd 2015
MILPITAS, CA - September 23, 2015 - Linear Technology
Corporation announces the LTC6754, a high speed LVDS output comparator capable
of toggle rates up to 890Mbps. This extremely fast comparator
operates with only 1.8ns of propagation delay, 1ns of overdrive
dispersion, and 1.5psRMS of jitter. Combined, these features
address ...
Injection-Lock a Wien-Bridge Oscillator
Sep 22nd 2015
I recently had the opportunity to investigate a new micropower 6-MHz LTC6255 op amp driving a 12-bit, 250k sample/sec LTC2361 ADC. I wanted to acquire the FFT of a pure sinusoid of about 5 kHz. The problem is that getting the FFT of a pure sinusoid requires, well, a pure sinusoid. Most programmable signal generators, however, ...
Signal Conditioning for High Impedance Sensors
Sep 22nd 2015
Abstract
Dealing with high impedance sources and maintaining high impedance inputs without compromising reliability has its own set of challenges. This article offers qualitative and quantitative discussions of issues associated what high impedence circuits, what types of sensors are high impedance, and what devices are available ...
DC2403A - LT6200 ADC Driver Board | Driver for LTC2387 family, Input Frequencies up to 1MHz
Sep 17th 2015
Demonstration circuit 2403A features the LT6200 amplifier. The DC2403A includes two of these amplifiers and is designed to drive the inputs of the DC2290A demo board. The DC2290A features the LTC2387 18-bit, 15Msps high speed SAR ADC. The linearity and low noise of the LT6200 make it an ideal candidate to drive the LTC2387.
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Driving High Resolution SAR ADCs
Sep 8th 2015
Driving high resolution SAR ADCs often requires tradeoffs between power consumption, linearity, and noise. The LTC6363 provides 20 bit accuracy when the system designer pays close attention to the interface filter between the driver and the ADC. Calculations and empirical data provide additional insight as to how ...
Positive to Negative Converter with Variable Output Using LTC3630 and LT6015/LT6016
Sep 1st 2015
There was a window of time in the 1950s and early ’60s when negative voltage rails were commonplace, when germanium PNP transistors were prevalent—like those used in an old “transistor radio”, now worth a fortune on Ebay. Nowadays, NPN transistors are more prevalent, since they basically work ...
LT6375 27dB Audio Gain Stage
Aug 31st 2015
The LT®6375 is a unity-gain difference amplifier which combines excellent DC precision, a very high input common mode range and a wide supply voltage range. It includes a precision op amp and a highly-matched thin film resistor network. It features excellent CMRR, extremely low gain error and extremely low gain drift. ...
LT6375 ±5mA Howland Current Source
Aug 31st 2015
The LT®6375 is a unity-gain difference amplifier which combines excellent DC precision, a very high input common mode range and a wide supply voltage range. It includes a precision op amp and a highly-matched thin film resistor network. It features excellent CMRR, extremely low gain error and extremely low gain drift. ...
LT6375 Bidirectional Full Range Current Monitor
Aug 31st 2015
The LT®6375 is a unity-gain difference amplifier which combines excellent DC precision, a very high input common mode range and a wide supply voltage range. It includes a precision op amp and a highly-matched thin film resistor network. It features excellent CMRR, extremely low gain error and extremely low gain drift. ...
LTC6363 LTC6363 Used as Lowpass Filter/Driver with 10VP-P Singled-Ended Input, Driving a SAR ADC
Aug 31st 2015
The LTC®6363 is a low power, low noise, fully differential op amp with rail-to-rail outputs optimized to drive low power SAR ADCs. The LTC6363 draws only 1.9mA supply current in active operation and features a shutdown mode which reduces the current consumption to 20μA (VS = 3V). ...
LTC6363 Differential AV = 1/9 Configuration Using an LT®5400 Quad-Matched Resistor Network
Aug 31st 2015
The LTC®6363 is a low power, low noise, fully differential op amp with rail-to-rail outputs optimized to drive low power SAR ADCs. The LTC6363 draws only 1.9mA supply current in active operation and features a shutdown mode which reduces the current consumption to 20μA (VS = 3V). ...
LTC6363 Single-Ended-to-Differential Conversion of a 20VP-P Ground-Referenced Input with Gain of AV = 0.5 to Drive an ADC
Aug 31st 2015
The LTC®6363 is a low power, low noise, fully differential op amp with rail-to-rail outputs optimized to drive low power SAR ADCs. The LTC6363 draws only 1.9mA supply current in active operation and features a shutdown mode which reduces the current consumption to 20μA (VS = 3V). ...
LTC3121 Single Li-Cell 3-LED Driver, 2.5V/4.2V to 175mA
Aug 27th 2015
The LTC®3121 is a synchronous step-up DC/DC converter with true output disconnect and inrush current limiting. The 1.5A current limit along with the ability to program output voltages up to 15V makes the LTC3121 well suited for a variety of demanding applications. Once started, operation will continue with inputs down ...
Paralleling Amplifiers Improves Signal-to-Noise Performance
Jul 9th 2015
Dealing with low amplitude signals can be challenging. In order to differentiate between the low level signal and the noise contributed by surrounding circuitry, we typically use gain to amplify the signal above the noise floor. However, a standard amplifier configuration multiplies the input signal, the input noise, ...
Micropower Op Amp Drives 8-Channel 18-Bit Simultaneous Sampling ADC without Compromising Accuracy or Breaking the Power Budget
Jun 23rd 2015
Design Note 541: Introduction
The op amps used to drive 18-bit analog-to-digital converters (ADCs) typically draw as much supply current as the ADC itself, often with a maximum offset spec that is well above that of the ADC. If multiple ADC channels are required, the power dissipation from these drivers quickly rises to unacceptable ...
LT6023 Gain of 11 Instrumentation Amplifier
Jun 17th 2015
The LT®6023 is a low power, enhanced slew rate, precision operational amplifier. The proprietary circuit topology of this amplifier gives excellent slew rate at low quiescent power dissipation without compromising precision or settling time. In addition, proprietary input stage circuitry allows the input impedance to remain ...
DC2266A - LTC2107 + LTC6409 Demo Board | 16-Bit, 210Msps ADC and Driver Combo Board, DC-100MHz Input, DDR LVDS Outputs, (req DC1371 and DC2219)
May 20th 2015
Demonstration circuit 2266A features the LTC®2107, 210Msps ADC, and the LTC6409 low noise amplifier. DC2266A supports the LTC2107 DDR LVDS output mode.
The circuitry on the analog inputs is optimized for analog input frequencies from DC to 100MHz. When driven with a 50Ω source, the gain will be 6dB. To modify the ...
4GHz Amplifier Achieves <1pA Input Bias Current over -40°C to 85°C Temperature Range
May 13th 2015
MILPITAS, CA - May 13, 2015 - Linear Technology announces the
LTC6268-10 single
and dual LTC6269-10 4GHz FET-input op amps for high dynamic
range and high speed transimpedance amplifier (TIA) applications.
These new decompensated amplifiers extend the speed and dynamic
range capabilities of this ultralow bias current op amp ...
Sometimes You Need a Little Gain Part 2
Apr 28th 2015
Introduction
Part 1 of "Sometimes You Need a Little Gain" dealt with a pseudo-differential ADC driver with gains of one to ten. This time a fully differential ADC driver, again with gains of one to ten will be described. First a brief recap on the LTC2373-18 SAR ADC and a description of the LTC6237 op amp which will be ...
DC675B - LT1568CGN Demo Board | Active Filter Building Block IC Configured as 4th Order 500kHz Bandpass
Apr 13th 2015
Demonstration circuit DC675B is for the evaluation of filter circuits using an LT®1568. The LT1568 is a dual 2nd order active-RC filter building block with precision ±0.75% capacitors and low noise op amps with 180MHz GBW trimmed to ±10% maximum variation. The ±10% GBW variation of the LT1568 op amps ...
Sometimes You Need a Little Gain - Part 1
Apr 9th 2015
Introduction
The LTC2373-18 is an 18-bit, 1Msps, 8-channel SAR ADC with an integrated high performance reference and programmable sequencer. The LTC2373-18 can be configured to accept both pseudo-differential (unipolar and bipolar) and fully differential input signals. For best performance, an op amp should ...
LTC6269-10 20kΩ Gain 210MHz Transimpedance Amplifier
Apr 7th 2015
The LTC®6268-10/LTC6269-10 is a single/dual 4GHz FET-input operational amplifier with extremely low input bias current and low input capacitance. It also features low input-referred current noise and voltage noise making it an ideal choice for high speed transimpedance amplifiers, and high-impedance sensor amplifiers. ...
LTC6268 20kΩ Gain 65MHz Trans-Impedance Amplifier
Apr 7th 2015
The LTC®6268/LTC6269 is a single/dual 500MHz FET-input operational amplifier with extremely low input bias current and low input capacitance. It also features low inputreferred current noise and voltage noise making it an ideal choice for high speed transimpedance amplifiers, CCD output buffers, and high-impedance sensor ...
Paralleling Amplifiers Increases Output Drive
Apr 1st 2015
There are several circuit techniques that increase the output drive capability of an amplifier. One method uses external bipolar transistors as a push-pull circuit to provide additional drive. Another method uses two different amplifiers in a composite amplfier configuration as detailed in Application Note 21 to leverage ...
DC2095A-C - LTC6655BHLS8-5V Demo Board | Ultra Low Noise, 5V Precision Voltage Reference in Ceramic Package
Mar 27th 2015
Demonstration circuit 2095A features the LTC®6655, a precision low drift reference packaged in a hermetic LS8. The demonstration circuit is available with the 2.5V, 4.096V or 5V output voltage option parts.
...
DC2095A-B - LTC6655BHLS8-4V Demo Board | Ultra Low Noise, 4.096V Precision Voltage Reference in Ceramic Package
Mar 27th 2015
Demonstration circuit 2095A features the LTC®6655, a precision low drift reference packaged in a hermetic LS8. The demonstration circuit is available with the 2.5V, 4.096V or 5V output voltage option parts.
...
DC2095A-A - LTC6655BHLS8-2.5V Demo Board | Ultra Low Noise, 2.5V Precision Voltage Reference in Ceramic Package
Mar 27th 2015
Demonstration circuit 2095A features the LTC®6655, a precision low drift reference packaged in a hermetic LS8. The demonstration circuit is available with the 2.5V, 4.096V or 5V output voltage option parts.
...
Avoid Amplifier Output Driver Saturation When Using pA Bias Current Amplifiers with High Source Impedance Sensors
Mar 26th 2015
Need for Low Bias Current Amplfiers
When taking sensor measurements, the type of sensor excitation used varies greatly; it can be a DC signal, an AC signal, a voltage source, a current source or a pulsed source to name a few. When using current source excitation or when using a high impedance sensor, the amplifier's bias current ...
20μA Op Amp Provides 30μV Precision
Mar 23rd 2015
MILPITAS, CA - March 23, 2015 - Linear Technology introduces the
LT6023, a dual 3V to
30V low power operational amplifier, featuring 30µV maximum input
offset voltage and 60µs settling to 0.01%. Proprietary slew
enhancement circuitry results in a fast, clean output step response
with low power consumption. Specially designed ...
LT6703 μPower Supply Voltage Monitor with 2V Hysteresis
Mar 17th 2015
The LT6703 µPower, low voltage comparator and reference offers a single comparator and accurate reference in a 2mm × 2mm DFN package. The -3 version is has a non-inverting input. Although only one of its comparator inputs is accessible (the other is connected to a 400mV internal precision voltage reference) its size ...
High Bandwidth, Very Low Input Bias Current Op Amp
Mar 11th 2015
The LTC6268 is a new op amp with a unique combination of bandwidth, input and output characteristics. It has a gain bandwidth of 500MHz with a typical input bias current of only 3 femptoamps. The input capacitance is 0.45pF and the output can drive a 200Ω load. This combination of features can bring new levels of performance ...
Industry's Fastest Comparators Drive 1.8V Logic Beyond 280MHz
Mar 11th 2015
MILPITAS, CA - March 11, 2015 - Linear Technology Corporation
announces the LTC6752 family of comparators with fast rise and fall
times of 1.2ns and a toggle frequency of 280MHz, making them the
fastest CMOS output comparators available today. Designed for
driving logic levels from 3.3V down to 1.8V, the LTC6752 exhibits
only ...
LT3753 9V-15V Input to 54V/3A Isolated Forward Converter
Feb 26th 2015
The LT®3753 is a primary side, current-mode PWM controller optimized for an active clamp forward converter topology. It features a programmable volt-second clamp that provides a duty cycle guardrail to limit primary switch reset voltage and prevent transformer saturation during load transients. The LT3753 also features ...
Understanding Power Monitor Accuracy
Feb 20th 2015
Measurement of a system’s power consumption during a final factory test (before deployment into the field) is a prudent part of a test program for any product. But there is an increasing emphasis to bring this functionality into the product itself for “run-time” monitoring of power, current, supply voltage, ...
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