LTC6373
Info : RECOMMENDED FOR NEW DESIGNS
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LTC6373

36V Fully-Differential Programmable-Gain Instrumentation Amplifier with 25pA Input Bias Current

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 5
1ku List Price Starting From $5.24
Features
  • Pin-Programmable Gains:
    G = 0.25, 0.5, 1, 2, 4, 8, 16V/V + Shutdown
  • Fully Differential Outputs
  • Gain Error: 0.015% (Max)
  • Gain Error Drift: 1ppm/°C (Max)
  • CMRR: 103dB (Min), G = 16
  • Input Bias Current: 25pA (Max)
  • Input Offset Voltage: 92μV (Max), G = 16
  • Input Offset Voltage Drift: 1.7μV/°C (Max), G = 16
  • –3dB Bandwidth: 4MHz, G = 16
  • Input Noise Density: 8nV/√Hz, G = 16
  • Slew Rate: 12V/μs, G = 16
  • Adjustable Output Common Mode Voltage
  • Quiescent Supply Current: 4.4mA
  • Supply Voltage Range: ±4.5V to ±18V
  • –40°C to 125°C Specified Temperature Range
  • Small 12-Lead 4mm × 4mm DFN (LFCSP) Package
Additional Details
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The LTC6373 is a precision instrumentation amplifier with fully differential outputs which includes a closely-matched internal resistor network to achieve excellent CMRR, offset voltage, gain error, gain drift, and gain nonlinearity. The user can easily program the gain to one of seven available settings through a 3-bit parallel interface (A2 to A0). The 8th state puts the part in shutdown which reduces the current consumption to 220 μA. Unlike a conventional voltage feedback amplifier, the LTC6373 maintains nearly the same bandwidth across all its gain settings.

The LTC6373 features fully differential outputs to drive high performance, differential-input ADCs. The output common mode voltage is independently adjustable via the VOCM pin. The combination of high impedance inputs, DC precision, low noise, low distortion, and high-speed differential ADC drive makes the LTC6373 an ideal candidate for optimizing data acquisition systems.

The LTC6373 is available in a 12-lead 4 mm × 4 mm DFN (LFCSP) package and is fully specified over the −40°C to +105°C temperature range.

Applications

  • Data Acquisition Systems
  • Biomedical Instrumentation
  • Test and Measurement Equipment
  • Differential ADC Drivers
  • Single-Ended-to-Differential Conversion
  • Multiplexed Applications
Part Models 5
1ku List Price Starting From $5.24

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Documentation

Documentation

Video

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
LTC6373HDFM#TRPBF
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LTC6373IDFM#PBF
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LTC6373IDFM#TRPBF
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LTC6373SDFM#PBF
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LTC6373SDFM#TRPBF
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Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

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DC2398A

LTC6373 Programmable Gain Instrumentation Amplifier

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DC2398A

LTC6373 Programmable Gain Instrumentation Amplifier

LTC6373 Programmable Gain Instrumentation Amplifier

Features and Benefits

  • Fully featured evaluation board for the LTC6373
  • Jumper or Arduino options for LTC6373 gain selection
  • Access to LTC6373 output common mode pin to control output level shifting
  • Flexible power supply option (±15 V or a single 9 V to 12 V)

Product Detail

Demo circuit DC2398A features the LTC6373 Programmable Gain Instrumentation Amplifier. The circuit’s gain can be controlled in several ways, such as by simply setting onboard jumpers or by connecting an Arduino or Linduino (DC2026C) microcontroller board. The LTC6373 has fully differential outputs with independent common mode level shifting. The output common mode level can be set by the IC’s internal default or overdriven by the user. The DC2398A can be powered by external bench supplies (typically ±15 V), but optionally also demonstrates the use of the LTC3265 dual low noise charge pump to generate ±15 V rails from a single 9 V to 12 V input supply.

Tools & Simulations

Tools & Simulations 3

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

To launch ready-to-run LTspice demonstration circuits for this part:

Step 1: Download and install LTspice on your computer.

Step 2: Click on the link in the section below to download a demonstration circuit.

Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.

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