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Solutions Search - Signal Conditioning

Micropower Zero-Drift Amplifier Improves Circuit Performance

Andrew Roberts - Design Engineer Jul 10th 2017
This video explores the superior performance achieved with the LTC2063 zero-drift amplifier in a wide variety of low power applications. The LTC2063 enables precision measurement at extremely low power levels. The LTC2063 operates from 1.7V to 5.25V and features a shutdown mode which is optimized for battery-powered and duty-cycled ...

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Precision Dual Output, High Current, Low Noise, Low Drift Reference

Michael B. Anderson - Senior IC Design Engineer 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 ...

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Voltage Reference: Performance Plus Features

Brendan Whelan - Design Manager 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 ...

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Wide Common Mode Range Current Sensing

John Fiorenza - Design Engineer 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 ...

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Driving High Resolution SAR ADCs

Tyler Hutchison - Signal Conditioning Design Engineer 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 ...

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High Bandwidth, Very Low Input Bias Current Op Amp

Roger Kidson - Product Evaluation Engineer 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 ...

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Versatile Comparators Enable Fast Signal Detection, Level Translation and Clock Recovery

Asit Shankar - Senior Design Engineer Jan 27th 2015
In this video, a new high speed CMOS output comparator family, the LTC6752, is introduced. The comparators exhibit extremely high toggle rates of 280 MHz and very low propagation delays of only 2.9ns. An overview of important features and specifications is presented. A brief description of each of the five members of the family ...

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Low Power Precision Op Amp Allows Fast, Accurate Multiplexing

Kris Lokere - Strategic Applications Manager Nov 19th 2014
If you need to measure many analog voltages, but not necessarily all at the same time, then a common approach is to multiplex these signals together into one output signal, so that you can then process and digitize each of these original voltage levels one at a time using shared circuitry. But doing this right requires some ...

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140V CMOS Op Amp with Rail-to-Rail Output & pA Inputs

Arnold Nordeng - Design Section Leader - Signal Conditioning Jun 26th 2014
The LTC6090 high voltage CMOS op amp is the highest voltage monolithic op amp in the industry. It has a number of unique characteristics not found in other CMOS op amps. Unlike other CMOS amplifiers whose fine transistor geometries limit power supply operation to 5V, the LTC6090 is built on Linear Technology’s proprietary ...

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LTspice: SAR ADC Driver Interface

Kris Lokere - Strategic Applications Manager Apr 3rd 2014
High-performance SAR ADCs can offer amazing dynamic range and linearity at faster and faster sample rates. But how do you design the amplifier and interface at the analog inputs? LTspice IV can help. This video shows how to use LTspice to simulate the analog input interface of high-performance SAR ADCs. We will look at charge ...

Blog Post Video LTspice 

 

Single-Ended to Differential Conversion Using Differential Op Amps

Kris Lokere - Strategic Applications Manager Jan 13th 2014
Differential op amps are important building blocks in modern analog and mixed signal circuits. Many modern ADCs require differential signals at the inputs. Differential analog signals are also handy to drive signals over a cable. Differential op amps are useful building blocks for creating differential signals. Linear Technology ...

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Evaluating Zero-Drift Amplifier Performance

Jeremy Wong - Design Engineer Dec 30th 2013
Analog applications are demanding better precision and drift performance due to improvements in data converter resolution and the economic drive to reduce or eliminate periodic calibration. Zero-drift amplifiers, which achieve microvolt-level accuracy and excellent low frequency noise, are the ideal choice for these high-sensitivity ...

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LTspice: Stability of Op Amp Circuits

Kris Lokere - Strategic Applications Manager Nov 6th 2013
We all know that feedback circuits can oscillate. We may even know some tricks of how to fix it. But wouldn’t it be nice if our simulation tool could show us exactly what is happening, and why? This video illustrates how to use the .AC analysis to look at open loop gain and phase of operational amplifier feedback circuits ...

Blog Post Video LTspice 

 

76V Over-the-Top® Input Op Amp Combines Precision, Versatility and Protection

Arnold Nordeng - Design Section Leader - Signal Conditioning Mar 20th 2013
With the increased-use of electronics in automotive and industrial applications, the need for robust and highly reliable components is essential to ensure a proper functioning system with low maintenance costs. Automotive applications, for example have hostile environments where electronic components may be exposed to a variety ...

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LS8 Package Improves Stability of Voltage References

Brendan Whelan - Design Manager Feb 12th 2013
Stability of precision electronic circuits is often dominated by the stability of the voltage reference. Most electronic systems rely on one or more voltage references to ensure that measurements or performance meets specifications, especially over long periods of time. Environmental factors directly affect the stability of ...

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IF/RF Gain Block State-of-the-Art Performance the Easy Way

Greg Fung - Design Engineer Oct 4th 2012
Bandwidth has become more precious than gold. As we push more and more data wirelessly through our smartphones, tablets, GPS, and video players, the spectrum has become more crowded. Increasingly complex and efficient modulation schemes allow us to carry more MBits/mHz through the air. However, the key to these demanding ...

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Matched Resistor Networks for Ultraprecision Applications

Greg Zimmer - Senior Product Marketing Engineer Mar 20th 2012
Precision matched resistors are used in a wide range of precision instrumentation applications including measurement and data acquisition, wireless RF, networking, automated test, medical, industrial controls and military equipment. The LT®5400 is a family of quad, precision matched resistors designed for high performance ...

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Precision Current Monitoring for Electric Motors, Solenoids and Inductive Loads

Cuyler Latorraca - Applications Engineer Mar 21st 2011
Current information in electric motors and solenoids provides important insight into power output and system health. Electric motor and solenoid driving circuits and the devices themselves create a challenging environment for operation of current monitoring circuits, with large common mode voltage shifts, fast switching currents ...

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Innovation Pushes State-of-the-Art in Voltage References

Brendan Whelan - Design Manager Nov 8th 2010
Most system designers use voltage references in their circuits. While many will agree that the performance may ultimately be limited by the reference, they are often unclear as to why. With so many reference products available, designers often choose based on a tradeoff between price and precision, using only initial accuracy ...

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LTC6655 0.25ppm Noise, Low Drift Precision Buffered Reference Family - Video Product Brief

Lailanie Reyes - Marketing Admin Jan 5th 2010
The LTC6655 is a complete family of precision bandgap voltage references, offering exceptional noise and drift performance. This low noise and drift is ideally suited for the high resolution measurements required by instrumentation and test equipment. In addition, the LTC6655 is fully specified over the temperature range of ...

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775 Nanovolt Noise Measurement for a Low Noise Voltage Reference

Jim Williams - Applications Guru Sep 15th 2009
Frequently, voltage reference stability and noise define measurement limits in instrumentation systems. In particular, reference noise often sets stable resolution limits. Reference voltages have decreased with the continuing drop in system power supply voltages, making reference noise increasingly important. The compressed ...

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The Simple Way to Match to a High-Speed ADC Input - LTM9001

Todd Nelson - Mixed Signal Applications Engineering Manager Jun 15th 2009
High-speed, high-resolution ADCs are critical components in communications and instrumentation applications. The interface between the final amplifier of the signal chain and the input pins of the ADC is challenging and time-consuming. Yet it is critical to the performance of the entire system. Traditionally, this requires impedance ...

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Simple Ways To Measure Current - LTC6101, LTC6102, LTC6103, LTC6104

Jon Munson - Applications Engineer Mar 15th 2009
Measuring current is one of the basic requirements in many electronic systems; whether for precise control or simple protection of circuit elements. A family of new devices from Linear Technology has been produced to greatly simplify the measurement of DC or AC current. Using only external resistors, each small device can be ...

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Paralleling Amplifiers and Layout Essentials for Driving Capacitive Loads Fast - LT1397, LT1206, LT1207

Glen Brisebois - Applications Engineer - Signal Conditioning Dec 15th 2008
Certain video and other technologies require driving planar conductive surfaces fast. Unfortunately, the surfaces can have high capacitance, which means that driving them fast takes high currents. This complicates the amplifier design but the situation extends beyond just the amplifier. Between the amplifier and the capacitive ...

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Build Your Own Laboratory Precision Voltage Source - LT1236, LT1881, LT1010, LT1017

Mark Thoren - Staff Scientist Jun 15th 2008
Every electronics lab needs a couple different types of voltage sources. Power supplies are the obvious choice, but these bench top supplies are not very stable over time and temperature, they cannot sink current and it can be very difficult to set an accurate voltage. This video gives a step-by-step demonstration of an amplifier ...

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Sub-Microamp RMS Current Measurement for Improved 32kHz Quartz Crystal Performance - LT1028, LT1222, LTC1563-2, LTC1968, LT1077

Jim Williams - Applications Guru Jun 15th 2008
Quartz crystal RMS operating current is critical to long-term stability, temperature coefficient and reliability. Accurate determination of RMS crystal current, especially in micropower types, is complicated by the necessity to minimize introduced parasitics, particulary capacitance, which corrupt crystal operation. This video ...

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