Data Sheet Rev. 10
CN Rev. 10 | JP Rev. 10

Overview

Features and Benefits

  • DC Performance Ideal for High-Precision Sensor Interface
    • Ultra-Low, 0.1µV Offset Voltage
      • 2.0µV (max) at +25°C
      • 2.5µV (max) at -40°C to +85°C
      • 3.5µV (max) at -40° to +125°C
    • Low 10nV/°C Drift
    • Low Noise: 1.5µVP-P from DC to 10Hz
    • 150dB AVOL, 140dB PSRR, 140dB CMRR
    • High Gain-Bandwidth Product
      • 1MHz (MAX4238)
      • 6.5MHz (MAX4239)
    • Ground-Sensing Input
    • Rail-to-Rail Output (RL = 1kΩ)
  • Low Power Consumption Reduces System Power
    • Single 2.7V to 5.5V Supply Voltage Range
    • 600µA Supply Current
    • 0.1µA Shutdown Mode
  • Low Power Consumption Reduces System Power
  • AEC-Q100 Qualified, Refer to Ordering Information for the List of /V Parts

Product Details

The MAX4238/MAX4239 are low-noise, low-drift, ultra-high precision amplifiers that offer near-zero DC offset and drift through the use of autocorrelating zeroing techniques. This method constantly measures and compensates the input offset, eliminating drift over time and temperature and the effect of 1/f noise. Both devices feature rail-to-rail outputs, operate from a single 2.7V to 5.5V supply, and consume only 600µA. An active-low shutdown mode decreases supply current to 0.1µA.

The MAX4238 is unity-gain stable with a gain-bandwidth product of 1MHz, while the decompensated MAX4239 is stable with AV ≥ 10V/V and a GBWP of 6.5MHz. The MAX4238/MAX4239 are available in 8-pin narrow SO, 6-pin TDFN and SOT23 packages.

Applications

  • Electronic Scales
  • Instrumentation Amplifiers
  • Medical Instrumentation
  • Strain Gauges
  • Thermocouples

Product Categories

Comparable Parts Click to see all in Parametric Search

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits (1)

Documentation & Resources

  • View All (13)
  • Data Sheets (1)
  • Reliability Data (1)
  • Design Notes (3)
  • Technical Articles (8)
    • Document Type
    Technical Articles

    Tools & Simulations

    LTspice

    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.

    LTspice

    Models for the following parts are available in LTspice:

    MAX4238

    Reference Designs (1)

    Design Resources

    ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

    MAX4238 Material Declaration
    Quality And Reliability
    Symbols and Footprints

    PCN-PDN Information

    Select Model
    • MAX4238ASA+ Production
    • MAX4238ASA+T Production

    Support & Discussions

    MAX4238 Discussions

    RE: Thermocouple measurement using LTC2368-24 Noise
    11 week(s) ago in Precision ADCs
    RE: Is isolation my solution? Advice requested
    All MAX4238 Discussions
    MAX4238 Contact ADI Technical Support »
    MAX4238 Ask your question »
    MAX4238 Contact ADI Technical Support » MAX4238 Ask your question »

    Sample & Buy


    Ordering FAQs


    See our Ordering FAQs for answers to questions about online orders, payment options and more.

     

    Buy Now Pricing


    (**) Displayed Buy Now Price and Price Range is based on small quantity orders.

     

    List Pricing


    (*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

     

    Lead Times


    Please see the latest communication from our CCO regarding lead times.

     

    Sampling


    Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.


    Price Table Help