Features and Benefits

  • Supply Voltage Range: 1.7V to 3.6V
  • Very Low 25µV (max) Input Offset Voltage
  • Low 65µA Quiescent Current
  • Rail-to-Rail Inputs and Outputs
    • >100dB at 1800MHz, 2400MHz
    • >90dB at 900MHz
  • 28kHz, -3dB Bandwidth
  • On-the-Fly Programmable Gain:
    • 10V/V, 20V/V, 40V/V, 80V/V, 100V/V, 150V/V, 200V/V, and 250V/V
  • Power-Saving Shutdown Mode
  • Available in Tiny 1.26mm x 1.23mm, 9-Bump WLP and 2.5mm x 2mm, 10-Pin TDFN

Product Details

The MAX41400 is a low-power, high-precision instrumentation amplifier with programmable gain through input pins.

Available in a space-saving, 9-bump wafer-level package (WLP) with a 0.4mm bump pitch, it is designed for use in portable medical and industrial sensor applications. The device features internal EMI filters to protect from RF disturbances and EMI. The internal fixed gain can be selected from 10V/V to 250V/V. The gain-setting resistors are located inside the device, thus minimizing gain drift variations over the temperature range.

The MAX41400 features rail-to-rail CMOS inputs and outputs; a 28kHz, -3dB bandwidth at just 65µA (typ) supply current; and 25µV (max) zero-drift input offset voltage over time and temperature. The zero-drift feature eliminates the high 1/f noise typically found in CMOS input amplifiers, making it useful for a wide variety of low-frequency measurement applications.

The MAX41400 operates from a 1.7V to 3.6V power supply voltage and is specified over the -40°C to +125°C automotive temperature range.


  • EKG Medical Devices
  • Insulin and Infusion Pumps
  • Low-Power Sensor Interface
  • Pressure, Weight, Force Sensors
  • RTD Temperature Sensors
  • Wearable Devices

Product Lifecycle icon-recommended Recommended for New Designs

This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

Evaluation Kits (1)

Tools & Simulations


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.


Models for the following parts are available in LTspice:


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.

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.



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


Evaluation Boards

Pricing displayed is based on 1-piece.

Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.