MAX4195ESA+T

Instrumentation, Op Amps, Buffer Amps Overview

The MAX4195ESA+T is a micropower, single-supply, rail-to-rail precision instrumentation amplifier manufactured by Analog Devices/Maxim Integrated. It features a fixed gain of +1V/V and operates from a single +2.7V to +7.5V supply or dual ±1.35V to ±3.75V supplies. The device draws 93µA quiescent current and includes a shutdown function reducing current to 8µA. It offers high common-mode rejection (95dB typical), low input offset voltage (±100µV typical), and operates within an extended temperature range of -40°C to +85°C in an 8-pin SO package.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Fixed unity gain (+1V/V) configuration with internal gain-setting resistors
• Rail-to-rail inputs and outputs for maximum dynamic range
• Low power consumption with dedicated shutdown mode
• High precision specifications including low offset voltage and drift

Instrumentation, Op Amps, Buffer Amps Applications

• Medical Equipment
• Thermocouple Amplifier
• 4–20mA Loop Transmitters
• Data-Acquisition Systems
• Battery-Powered/Portable Equipment

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix '+T' indicates tape-and-reel packaging when sourcing. Confirm the manufacturer is Analog Devices Inc. or Maxim Integrated. Ensure the part number matches the exact fixed-gain variant required for your design. Check RoHS compliance status if mandated by your project specifications.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when a fixed unity gain instrumentation amplifier is required. It is suitable for applications needing rail-to-rail output swing on a single supply. Consider the shutdown feature for battery-powered designs. Verify that the 93µA quiescent current meets your power budget constraints.

Instrumentation, Op Amps, Buffer Amps Part Context

The MAX4195ESA+T belongs to the MAX4194–MAX4197 family of micropower instrumentation amplifiers. While the MAX4194 offers variable gain, the MAX4195 provides a fixed +1V/V gain. Other family members include the MAX4196 (+10V/V) and MAX4197 (+100V/V). All share similar precision and power characteristics.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Direct functional substitutes within the same family include the MAX4194 (variable gain), MAX4196 (fixed +10V/V gain), and MAX4197 (fixed +100V/V gain). These parts share the same pinout and package but differ in gain settings.

Instrumentation, Op Amps, Buffer Amps FAQ

What is the input common-mode voltage range?

The input common-mode range extends from VEE - 0.2V to VCC - 1.1V.

How does the shutdown function operate?

Pulling the SHDN pin low reduces the quiescent current to 8µA and places the output in a high-impedance state. Pulling it high enables normal operation.

What is the typical DC common-mode rejection ratio?

The typical DC common-mode rejection (CMR) is 95dB at a gain of +1V/V.