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MAX41400
RECOMMENDED FOR NEW DESIGNSLow-Power, Precision Instrumentation Amplifier with Programmable Gain
Enhances Sensor System Accuracy by 4x and Extends Battery Life by 55%
- Part Models
- 2
- 1ku List Price
- Starting From $1.19
Part Details
- 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
- EMIRR
- >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 × 1.23mm, 9-Bump WLP and 2.5mm × 2mm, 10-Pin TDFN
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.
Applications
- EKG Medical Devices
- Insulin and Infusion Pumps
- Low-Power Sensor Interface
- Pressure, Weight, Force Sensors
- RTD Temperature Sensors
- Wearable Devices
Documentation
Data Sheet 1
Design Note 1
Video 2
Analog Dialogue 1
Webcast 2
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. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| MAX41400ANL+ | 9-WLCSP-N/A | ||
| MAX41400ANL+T | 9-WLCSP-N/A |
This is the most up-to-date revision of the Data Sheet.
Hardware Ecosystem
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Low Power Strain Gauge Signal Measurement -
Low Power Differential Voltage Signal Measurement
Tools & Simulations
LTspice
Models for the following parts are available in LTspice:
- MAX41400
Signal Chain Designer - BETA
Signal Chain Designer is a web-based tool designed to create and simulate complex precision signal chains. See your circuit’s performance before you commit to your PCB: transfer function, noise, power consumption, input range, and DC error. Quickly experiment with different parts and architectures. Signal chains can be exported to LTspice for further analysis.
Open ToolSPICE Model 1
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.
Evaluation Kits
Evaluation Kit for the MAX41400