Solutions Search - Current Sense Amplifiers
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 ...
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. ...
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, ...
DC2261A-B - LT6119-2 | Current Sense Amplifier, Reference and Comparators with POR
Feb 6th 2015
Demonstration circuit 2193A features the LT®6119, a high side current sense amplifier with comparators and a 400mV reference.
The demo board circuit amplifies the voltage across an onboard current sense resistor, to provide a precision unipolar voltage output that is proportional to the sensed current. The board has two ...
DC2261A-A - LT6119-1 | Current Sense Amplifier, Reference and Comparators with POR
Feb 6th 2015
Demonstration circuit 2193A features the LT®6119, a high side current sense amplifier with comparators and a 400mV reference.
The demo board circuit amplifies the voltage across an onboard current sense resistor, to provide a precision unipolar voltage output that is proportional to the sensed current. The board has two ...
DC2193A - LT6118 Demo Board | High Side Current Sense Amplifier with Reference and Comparator with POR Capability
Dec 8th 2014
Demonstration circuit 2193A features the LT®6118, a high side current sense amplifier with a comparator and a 400mV reference.
The demo board circuit amplifies the voltage across an onboard current sense resistor, to provide a precision unipolar voltage output that is proportional to the sensed current. The board has one ...
0V to 100V, 1% Accurate Energy Monitor Has 12-Bit Output
Sep 23rd 2014
MILPITAS, CA - September 23, 2014 - Linear Technology
Corporation introduces the LTC2946, a high or low side charge, power and energy
monitor for DC supply rails in the 0V to 100V range. An integrated
±0.4% accurate, 12-bit ADC and external precision time base
(crystal or clock) enables measurement accuracy better than ±0.6%
for ...
LTC6102 Simple 500V Current Monitor
Aug 4th 2014
The LTC®6102/LTC6102HV are versatile, high voltage, highside current sense amplifiers. Their high supply voltage rating allows their use in many high side applications, while the low drift and offset ensure accuracy across a wide range of operating conditions. The LTC6102-1 is a version of the LTC6102 that includes a low ...
LT6100 0A to 33A High Side Current Monitor with 12kHz Frequency Rolloff
Aug 4th 2014
The LT6100 sense inputs have a voltage range that extends from 4.1V to 48V, and can withstand a differential voltage of the full supply. This makes it possible to monitor the voltage across a MOSFET switch or a fuse. The part can also withstand a reverse battery condition on the inputs. ...
Altera Stratix V GX FPGA Development Kit
Jun 11th 2014
The Altera® Stratix® V GX FPGA Development Kit provides a complete design environment that includes all the hardware and software you need to begin developing FPGA designs immediately. The development kit is RoHS compliant. You can use this development kit to do the following:
Develop and test PCI Express® (PCIe®) designs ...
Rail-to-Rail 80V Power Monitor Measures Current & Voltage with +/-0.75% Accuracy
Nov 7th 2012
MILPITAS, CA – November 7, 2012 – Linear Technology Corporation
introduces the LTC2945, a wide range I²C system monitor that monitors
the current, voltage and power of any 0V to 80V rail. In many
cases, prior power monitoring solutions are limited to 3V to 5V
supplies and monitor voltages less than 36V, requiring additional
circuitry ...
DC1699A-B - LT6108-2 | High Side Current Sense Amplifier w/ Reference and a Comparator
Oct 6th 2011
DC1699A-B - Demo Board for:LT6108 - High Side Current Sense Amplifier with Reference and Comparator
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DC1699A-A - LT6108-1 | High Side Current Sense Amplifier w/ Reference and a Comparator
Oct 6th 2011
DC1699A-A - Demo Board for:LT6108 - High Side Current Sense Amplifier with Reference and Comparator
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Circuit Fault Protection with Very Fast Latching Load Disconnect
Sep 7th 2011
The LT6108 is a complete high side current sense device that incorporates a precision current sense amplifier, an integrated voltage reference and a comparator. Two versions of the LT6108 are available. The LT6108-1 has a latching comparator and the LT6108-2 has a non-latching comparator. In addition, the current sense amplifier ...
Overcurrent Battery Fault Protection
Sep 7th 2011
The LT6108 is a complete high side current sense device that incorporates a precision current sense amplifier, an integrated voltage reference and a comparator. Two versions of the LT6108 are available. The LT6108-1 has a latching comparator and the LT6108-2 has a non-latching comparator. In addition, the current sense amplifier ...
Energy-Tripped Circuit Breaker Trips After a Time Interval That Varies as a Function of Sensed Load Current
Sep 7th 2011
The circuit of this circuit has three distinct parts – circuit breaking, current sensing and timing. The circuit breaking function can be any type of electronically controlled relay or solid state switch, properly sized for voltage and current ratings of the load being protected. Load current sensing is achieved via ...
Octal Voltage, Current & Temperature Monitor Provides Accurate Internal & Remote Measurements
Sep 1st 2011
MILPITAS, CA – September 1, 2011 – Linear Technology Corporation
introduces the LTC2991, an 8-channel I²C temperature, voltage and
current monitor for 3V and 5V systems. The LTC2991 is a highly
integrated monitoring solution that incorporates a 14-bit ADC,
10ppm/°C voltage reference and I²C digital interface to provide
submillivolt ...
DC1659A-B - LT6109-2 | High Side Current Sense with Reference and Comparators
Aug 17th 2011
DC1659A-B - Demo Board for:LT6109 - High Side Current Sense Amplifier with Reference and Comparators
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DC1659A-A - LT6109-1 | High Side Current Sense with Reference and Comparators
Aug 16th 2011
DC1659A-A - Demo Board for:LT6109 - High Side Current Sense Amplifier with Reference and Comparators
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60V Current Sense Amplifier Offers Adjustable Fault Flags
Jul 6th 2011
MILPITAS, CA – July 6, 2011 – Linear Technology announces the
LT6109, a complete
high side current sense device that incorporates a current sense
amplifier, dual comparators and a precision 400mV voltage
reference. When connected to a current shunt resistor, the high
side current sense amplifier precisely extracts the shunt ...
LT6109 Simplified DC Motor Torque Control
Jun 28th 2011
The LT6109 is a complete high side current sense device that incorporates a precision current sense amplifier, an integrated voltage reference and two comparators. Two versions of the LT6109 are available. The LT6109-1 has the comparators connected in opposing polarity and the LT6109-2 has the comparators connected in the ...
Circuit Fault Protection with Latching Load Disconnect and Early Warning Indication
Jun 28th 2011
The LT6109 is a complete high side current sense device that incorporates a precision current sense amplifier, an integrated voltage reference and two comparators. Two versions of the LT6109 are available. The LT6109-1 has the comparators connected in opposing polarity and the LT6109-2 has the comparators connected in the same ...
Overcurrent and Undervoltage Battery Fault Protection
Jun 28th 2011
The LT6109 is a complete high side current sense device that incorporates a precision current sense amplifier, an integrated voltage reference and two comparators. Two versions of the LT6109 are available. The LT6109-1 has the comparators connected in opposing polarity and the LT6109-2 has the comparators connected in the same ...
DC1698A-C - LT1999-50 (MS8) Demoboard
Mar 22nd 2011
DC1698A-C - Demo Board for:LT1999 - High Voltage, Bidirectional Current Sense Amplifier
...
Precision Current Monitoring for Electric Motors, Solenoids and Inductive Loads
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 ...
DC1698A-B - LT1999-20 (MS8) Demoboard
Jan 13th 2011
DC1698A-B - Demo Board for:LT1999 - High Voltage, Bidirectional Current Sense Amplifier
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DC1698A-A - LT1999-10 (MS8) Demoboard
Jan 13th 2011
DC1698A-A - Demo Board for:LT1999 - High Voltage, Bidirectional Current Sense Amplifier
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Bidirectional Current Sense Amplifier Operates from -5V to 80V with 80db of CMRR at 100 kHz
Nov 15th 2010
MILPITAS, CA - November 15, 2010 - Linear Technology announces the LT1999, a high-voltage amplifier designed for bidirectional current sensing in the presence of fast switching common-mode voltages from -5V to 80V. This wide input common-mode range is obtained with standard low voltage op amp supplies. A 2MHz bandwidth enables ...
Solenoid Current Monitor for Ground Tied Solenoid
Nov 2nd 2010
The common mode inputs to the LT1999 switch between Vs and one diode drop below ground.
The LT1999 is a high speed precision current sense amplifier, designed to monitor bidirectional currents over a wide common mode range. The LT1999 is offered in three gain options: 10V/V, 20V/V, and 50V/V. The LT1999 senses current via ...
Armature Current Monitor for DC Motor Applications
Nov 2nd 2010
The LT1999 is a high speed precision current sense amplifier, designed to monitor bidirectional currents over a wide common mode range. The LT1999 is offered in three gain options: 10V/V, 20V/V, and 50V/V. The LT1999 senses current via an external resistive shunt and generates an output voltage, indicating both magnitude and ...
Digital Monitor Provides Accurate Internal & Remote Temperature Measurements
Sep 22nd 2010
MILPITAS, CA - September 22, 2010 - Linear Technology
Corporation introduces the LTC2990, an I2C
temperature and voltage monitor for 3V and 5V systems. Many
emerging, low voltage systems today rely on monitoring ICs to relay
parametric data used in assessing overall system health and
reliability. Traditional ADC implementations ...
DC1536A - LTC6102-1 Current Sense Demo Board with Enable Feature
Feb 17th 2010
DC1536A - Demo Board for:LTC6102 - Precision Zero Drift Current Sense Amplifier
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DC907A-B - LTC6102, LT6100, LT1787, LTC2054, and LTC2439-1 (Requires DC590B) | Demo Board
Oct 22nd 2009
DC907A-B - Demo Board for:LTC2054 - Single Micropower Zero-Drift Operational AmplifiersLTC6102 - Precision Zero Drift Current Sense AmplifierLT1787 - Precision, High Side Current Sense AmplifiersLT6100 - Precision, Gain Selectable High Side Current Sense AmplifierLTC2439-1 - 8-/16-Channel 16-Bit No Latency Delta Sigma ADC
...
Simple Ways To Measure Current - LTC6101, LTC6102, LTC6103, LTC6104
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 ...
Current Sense Amplifier Operates from -55°C to 150°C
Jun 3rd 2008
MILPITAS, CA - June 3, 2008 - Linear Technology announces the
LT6107, a Military Plastic grade (MP-grade) high side current sense
amplifier specified for operation from 55°C to 150°C. As an
MP-grade device, the LT6107 is guaranteed and tested across the
specified temperature range and is intended to meet the demands of
automotive, ...
DC1363A - LT6107-General Purpose High-Side Current-Sense Amplifier featuring the LT6107
May 12th 2008
DC1363A - Demo Board for:LT6107 - High Temperature High Side Current Sense Amp in SOT-23
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High-Side Power Monitor Measures Both Current and Voltage up to 80V
Feb 18th 2008
MILPITAS, CA February 18, 2008 Linear Technology Corporation
introduces the LTC4151, a high side power monitor that measures
current and input voltages from 7V to 80V. The LTC4151 utilizes an
internal 12-bit ADC to continuously measure both high side current
and input voltage to give a true power reading. The LTC4151
replaces ...
DC1208A - LTC4151 Demo Board | 80V High Side Power Monitor, req. DC2026
Jan 25th 2008
Demonstration circuit 1208A features the LTC4151 high side power monitor that accepts input voltages from 7V to 80V. In default operation mode, the onboard 12-bit ADC continuously measures high side current, input voltage and an external voltage. Data is reported through the I2C interface when polled by a host. The monitors ...
High Side Current Sense Amplifier Features Input Range from –0.3V to 44V & 300uV Offset
Dec 10th 2007
MILPITAS, CA - December 10, 2007 - Linear Technology announces
the LT6105, a precision current sense amplifier with an input
common mode range that extends from -0.3V below V-, up to 44V above
V-. The common mode range of the LT6105 is independent of the
positive supply voltage, making it ideal for a wide range of
applications. ...
The LT6105 Can Monitor the Current of Either Positive or Negative Supplies, Without a Schematic Change.
Sep 7th 2007
Positive or negative current flow is measured by just swapping inputs, -IN connected to most negative side of sense resistor. +IN is connected to most positive side of sense resistor.
...
LT6105 Current Sense Amplifier Monitors Both +15V and -15V Supplies
Sep 7th 2007
The input common mode range of the LT6105 also makes it suitable for monitoring either positive or negative supplies. The circuit below shows one LT6105 applied as a simple positive supply monitor, and another LT6105 as a simple negative supply monitor. Note that the schematics are practically identical and both have outputs ...
Solenoid is Pulled High to 24V, Freewheels Low to a Schottky Below Ground
Sep 7th 2007
The large input common mode range of the LT6105 makes it suitable for monitoring currents in quarter, half and full bridge inductive load driving applications.This circuit shows an example of a quarter bridge. The MOSFET pulls down on the bottom of the solenoid to increase solenoid current. It lets go to decrease current, and ...
DC1192A - LT6105 Current Sense Demo Board
Sep 7th 2007
DC1192A - Demo Board for:LT6105 - Precision, Rail-to-Rail Input Current Sense Amplifier
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105V High Side Current Sense Amplifier with 10uV Offset & Zero Drift
Jul 18th 2007
MILPITAS, CA - July 18, 2007 - Linear Technology announces the
LTC6102, the most precise high side current sense amplifier
available. Maximum input offset voltage of the LTC6102 is only 10uV
and it can accept differential sense voltages up to 2V. The
resulting 106dB of dynamic range allows the LTC6102 to resolve
micro-amps from ...
DC1113A - LTC6102 Current Sense Demo Board
Jun 15th 2007
DC1113A - Demo Board for:LTC6102 - Precision Zero Drift Current Sense Amplifier
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Ultraprecise Current Sensing with LTC6102
Jun 15th 2007
Very low input offset allows using low value resistors while maintaining high measurement resolution. Using low value also reduces power losses and temperature rise. ...
Bidirectional Current Sense Circuit with Separate Charge/Discharge Output
Jun 15th 2007
The LTC6102/LTC6102HV monitor current via the voltage across an external sense resistor (shunt resistor). Internal circuitry converts input voltage to output current, allowing a small sense signal on a large common mode voltage to be translated to a ground-referred signal. Low DC offset allows the use of very low shunt resistor ...
High Voltage/Current and Temperature Monitoring
Jun 15th 2007
The LTC2990 is used to monitor system temperatures, voltages and currents. Through the I2C serial interface, the device can be configured to measure many combinations of internal temperature, remote temperature, remote voltage, remote current and internal VCC. The internal 10ppm/°C reference minimizes the number of supporting ...
Low Cost 36V Current Sense Amplifier Offers Precision in a SOT-23
May 9th 2007
MILPITAS, CA - May 9, 2007 - Linear Technology announces the
LT6106, a low cost, high side current sense amplifier that can
resolve small differential signals from common mode voltages up to
36V. With only 250uV(max) of input offset voltage and a full-scale
differential input of 500mV, the LT6106 offers a dynamic range of
2000:1. ...
DC1240A - LT6106 Current Sense Demo Board
Apr 16th 2007
DC1240A - Demo Board for:LT6106 - Low Cost, 36V High Side Current Sense Amplifier
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Precision Bidirectional 70V Current Sense Amplifier Offers Unprecedented Flexibility
Feb 7th 2007
MILPITAS, CA - February 7, 2007 - Linear Technology Corporation
announces the LTC6104, a unique high-side current sense amplifier
composed of two complete amplifiers with a combined single bipolar
output. The dual amplifier topology is ideal for bidirectional
operation and provides exceptional flexibility via gain
programmability ...
Dual 60V Current Sense Amplifiers Feature Fast Response, Precision & Flexibility
Jan 31st 2007
MILPITAS, CA - January 31, 2007 - Linear Technology's LTC6103
contains two independent, high side current sense amplifiers with
exceptional precision and response time. As a dual, the LTC6103 is
ideal for multiple current sensing applications such as H-bridge
driver circuits. The unique topology also allows the second
amplifier ...
DC1117A - LTC6104 Current Sense Demo Board
Jan 17th 2007
DC1117A - Demo Board for:LTC6104 - High Voltage, High Side, Bi-Directional Current Sense Amplifier
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Bidirectional H-Bridge Monitoring with Single-Ended Output
Jan 17th 2007
The output structure of the LTC6104 provides a single bidirectional signal. The output connection can either source or sink current to a load resistance, depending on which input channel is sensing current fl ow. A negative-going output swing remains linear as long as Pin 4 (V–) is lower than the lowest expected output level ...
Bidirectional H-Bridge Monitoring with ADC-Friendly Differential Output
Jan 15th 2007
The dual outputs of the LTC6103 can be used individually to provide overload detection, and/or may be taken as a differential pair to provide a bidirectional signal to an analog-to-digital converter (ADC) for example. Figure 3 shows a typical circuit for a generic H-bridge application. The power devices may be complementary ...
DC1116A - LTC6103 Current Sense Demo Board
Jan 15th 2007
DC1116A - Demo Board for:LTC6103 - Dual High Voltage, High Side Current Sense Amplifier
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High Side Current Sense and Fuse Monitor
May 6th 2005
The LT6100 can be used as a combination current sensor and fuse monitor. This part includes on-chip output buffering and was designed to operate with the low supply voltage (≥2.7V), typical of vehicle data acquisition systems, while the sense inputs monitor signals at the higher battery bus potential. The LT6100 inputs are ...
DC1114A - LT6100 Current Sense Demo Board
May 6th 2005
DC1114A - Demo Board for:LT6100 - Precision, Gain Selectable High Side Current Sense Amplifier
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Simple 500V High Side Current Monitor
Mar 17th 2005
Adding two external Mosfets to hold off the voltage al-lows the LTC6101 to connect to very high potentials and monitor the current flow. The output current from the LTC6101, which is proportional to the sensed input volt-age, flows through M1 to create a ground referenced output voltage. ...
DC1115A - LTC6101 Current Sense Demo Board
Mar 17th 2005
DC1115A - Demo Board for:LTC6101 - High Voltage, High-Side Current Sense Amplifier in SOT-23
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High-Side Transimpedance Amplifier & APD Monitor
Mar 17th 2005
Current through a photodiode with a large reverse bias potential is converted to a ground referenced output voltage directly through an LTC6101. The supply rail can be as high as 70V. Gain of the I to V conversion, the trans- impedance, is set by the selection of resistor RL. ...
48V Supply Current Monitor with Isolated Output and 105V Survivability
Mar 17th 2005
The HV version of the LTC6101 can operate with a total supply voltage of 105V. Current flow in high supply voltage rails can be monitored directly or in an isolated fashion as shown in this circuit. The gain of the circuit and the level of output current from the LTC6101 depends on the particular opto-isolator used. ...
LTC6101/LT3021 Voltage Controlled Current Source
Mar 16th 2005
Adding a current sense amplifier in the feedback loop of an adjustable low dropout voltage regulator creates a simple voltage controlled current source. The range of output current sourced by the circuit is set only by the current capability of the voltage regulator. The current sense amplifier senses the output current and ...
16-Bit Resolution Unidirectional Current Sense into LTC2433 ADC
Jun 18th 2003
The LTC2433-1 can accurately digitize signal with source impedances up to 5kΩ. This LTC6101 current sense circuit uses a 4.99kΩ output resistance to meet this requirement, thus no additional buffering is necessary. ...
Low Power, Bidirectional 60V Precision Hi Side Current Sense
Aug 26th 1999
Using a very precise zero-drift amplifier as a pre-amp allows for the use of a very small sense resistor in a high voltage supply line. A floating power supply regulates the voltage across the pre-amplifier on any voltage rail up to the 60V limit of the LT1787HV circuit. Overall gain of this circuit is 1000. A 1mA change in ...
Bidirectional Battery-Current Monitor
Aug 26th 1999
This circuit provides the capability of monitoring current in either direction through the sense resistor. To allow negative outputs to represent charging current, VEE is connected to a small negative supply. In single-supply operation (VEE at ground), the output range may be offset upwards by applying a positive reference ...
Split or Single Supply Operation, Bidirectional Output into A/D
Aug 8th 1998
In this circuit, split supply operation is used on both the LT1787 and LT1404 to provide a symmetric bidirectional measurement. In the single-supply case, where the LT1787 pin 6 is driven by VREF, the bidirectional measurement range is slightly asymmetric due to VREF being somewhat greater than mid-span of the ADC input range. ...
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