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Instrumentation Amplifier 1 Circuit Rail-to-Rail 9-WLP (1.26x1.23)

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MAX41400ANL+T General Description

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.

Analog Devices, Inc Inventory

Key Features

  • 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
Analog Devices, Inc Original Stock


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


model MAX41400ANL+T package 9-WLCSP-N/A
packingQty Reel,2500 packingOption Reel
packageType N91F1+1 rohs roHSY
lifeCycle production tempRange -40 to 125C
Manufacturer Analog Devices Inc. Product Category Instrumentation Amplifiers
RoHS Details Number of Channels 1 Channel
3 dB Bandwidth 28 kHz SR - Slew Rate 80 mV/us
CMRR - Common Mode Rejection Ratio 130 dB Ib - Input Bias Current 10 pA
Vos - Input Offset Voltage 1 uV Supply Voltage - Max 3.6 V
Supply Voltage - Min 1.7 V Operating Supply Current 65 uA
Minimum Operating Temperature - 40 C Maximum Operating Temperature + 125 C
Mounting Style SMD/SMT Package / Case THIN-WLP-9
Brand Analog Devices / Maxim Integrated Product Type Instrumentation Amplifiers
Factory Pack Quantity 2500 Subcategory Amplifier ICs
MAX41400 Simplified Block Diagram MAX41400 TDFN Pin Configuration

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