AD8237
Info : RECOMMENDED FOR NEW DESIGNS
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AD8237

Micropower, Zero Drift, True Rail-to-Rail Instrumentation Amplifier

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 3
1ku List Price Starting From $1.14
Features
  • Gain set with 2 external resistors
    Can achieve low gain drift at all gains
  • Ideal for battery powered instruments
    Supply current: 115 μA
    Rail-to-rail input and output
    Zero input crossover distortion
  • Designed for excellent dc performance
    Minimum CMRR: 106 dB
    Maximum offset voltage drift:
    0.3 μV/°C
    See data sheet for additional features
  • Bandwidth mode pin (BW) to adjust compensation
  • 8 kV HBM ESD rating
  • RFI filter on-chip
  • Single-supply operation:
    1.8 V to 5.5 V
  • 8-lead MSOP package
Additional Details
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The AD8237 is a micropower, zero drift, rail-to-rail input and output instrumentation amplifier. The relative match of two resistors sets any gain from 1 to 1000. The AD8237 has excellent gain accuracy performance that can be preserved at any gain with two ratio-matched resistors.

The AD8237 employs the indirect current feedback architecture to achieve a true rail-to-rail capability. Unlike conventional in-amps, the AD8237 can fully amplify signals with common-mode voltage at or even slightly beyond its supplies. This enables applications with high common-mode voltages to use smaller supplies and save power.

The AD8237 is an excellent choice for portable systems. With a minimum supply voltage of 1.8 V, a 115 μA typical supply current, and wide input range, the AD8237 makes full use of a limited power budget, yet offers bandwidth and drift performance suitable for bench-top systems.

Applications

  • Bridge amplification
  • Pressure measurement
  • Medical instrumentation
  • Thermocouple interface
  • Portable systems
  • Current measurement

AD8237 wins 2012 Hot 100 Award from EDN!

Part Models 3
1ku List Price Starting From $1.14

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Documentation

Documentation

Video

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
AD8237ARMZ
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AD8237ARMZ-R7
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AD8237ARMZ-RL
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Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

reference details image

EVAL-INAMP-ICF-RMZ

AD8237 and AD8420 Evaluation Board

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EVAL-INAMP-ICF-RMZ

AD8237 and AD8420 Evaluation Board

AD8237 and AD8420 Evaluation Board

Product Detail

The EVAL-INAMP-ICF-RMZ offers users the option of evaluating the AD8237 or the AD8420 indirect current feedback (ICF) instrumentation amplifiers individually or connected to adjacent boards in an application. This evaluation board ships with both instrumentation amplifiers in surface-mount MSOP packages.

  

Reference Quick Start section of user guide UG-513 to get started.

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.

Reference Designs

Reference Designs 2

Robust Loop Powered Configurable Transmitter Circuit

Configurable 4-20 mA Loop Powered Transmitter/Receiver using a Micropower Instrumentation Amplifier

EVAL-CN0352-EB1Z_IO, Li-ion Battery Charging and Discharging Controlling Circuit

Cost Effective, Multichannel Lithium Ion Battery Testing System

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CN0352

Cost Effective, Multichannel Lithium Ion Battery Testing System

CN0352

Circuits from the lab

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Cost Effective, Multichannel Lithium Ion Battery Testing System

Features and Benefits

  • Expandable 8-Channel Lithium Ion Battery Tester
  • Integrated Fast Charging/Discharging Battery Management
  • Precision Analog Microcontroller for Data Acquisition and Control
View Detailed Reference Design external link

Design & Integration Tools

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