MAX40023ANT+T

Instrumentation, Op Amps, Buffer Amps Overview

The MAX40023ANT+T is a single-channel, low-noise, low-power instrumentation amplifier manufactured by Analog Devices/Maxim Integrated. It operates on a supply voltage ranging from 1.6V to 3.6V and functions within a temperature range of -40°C to +125°C. Key electrical specifications include a typical quiescent current of 17µA per channel, an input bias current of less than 1pA at room temperature, and an input voltage noise density of 32nV/√Hz. The device features a gain-bandwidth product of 80kHz, a slew rate of 20mV/µs, and a common-mode rejection ratio of 100dB. It is housed in a compact 6-bump wafer-level package (WLP) with a 0.4mm pitch.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Ultra-low input bias current for high-impedance sensor interfacing
• Low quiescent current consumption optimized for battery-powered systems
• Internal EMI rejection capabilities
• Power-saving shutdown mode

Instrumentation, Op Amps, Buffer Amps Applications

• Wearable medical devices
• Industrial sensors
• Battery-powered devices

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific ordering suffix 'ANT' corresponds to the 6-bump WLP package configuration. Confirm RoHS compliance status indicated by the '+' suffix. Check current production availability as some variants may be marked as future products or have restricted distribution channels. Ensure the component matches the required operating temperature range and pinout for your design.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when designing circuits that require minimal power consumption alongside extremely low leakage currents. It is suitable for applications involving high-output impedance voltage sources or current sources, such as photodiodes and pH sensors. Consider the rail-to-rail input capability and low noise profile for precision signal conditioning in portable electronics.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the MAX40023/MAX40024 family of amplifiers designed for power-sensitive applications requiring low noise and very low-leakage input current. The MAX40023 variant provides a single amplifier channel, while the MAX40024 offers dual channels. Both are engineered to interface directly with sensors in wearable medical and industrial environments.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Consult official documentation for verified substitute part numbers before implementation.

Instrumentation, Op Amps, Buffer Amps FAQ

How does the shutdown mode affect the amplifier's inputs and output?

In shutdown mode, the inputs and output enter a high-impedance state, allowing multiple devices to be multiplexed onto a single line without external buffers.

What is the purpose of the internal charge pump in this amplifier?

The internal charge pump enables rail-to-rail input performance at the minimum supply voltage of 1.6V, maximizing dynamic range and eliminating crossover distortion without requiring external components.