MAX4236BESA+

Instrumentation, Op Amps, Buffer Amps Overview

The MAX4236BESA+ is a high-precision, single-channel operational amplifier manufactured by Analog Devices/Maxim Integrated. It features ultra-low offset voltage (50µV max at +25°C for Grade B) and low drift without chopper stabilization. The device operates on a single supply from 2.4V to 5.5V or dual supplies of ±1.2V to ±2.75V. Key electrical parameters include a gain-bandwidth product of 1.7MHz, quiescent current of 350µA, and input bias current of 1pA. It offers rail-to-rail output swing, ground-sensing inputs, and a shutdown mode reducing current to <0.1µA. The component is housed in an 8-pin SO package and rated for -40°C to +85°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Ultra-low offset voltage and temperature coefficient ensure high DC accuracy without chopping techniques.
• Ground-sensing input capability allows common-mode range extension below the negative supply rail.
• Rail-to-rail output swing maximizes dynamic range in low-voltage single-supply systems.
• Integrated shutdown function reduces quiescent current to less than 0.1µA with high-impedance output.

Instrumentation, Op Amps, Buffer Amps Applications

• Strain Gauges
• Piezoelectric Sensors
• Thermocouple Amplifiers
• Electrochemical Sensors
• Battery-Powered Instrumentation

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific ordering suffix 'E' indicates the standard operating temperature range (-40°C to +85°C) and 'SA' denotes the 8-pin SO package. Confirm that the 'B' grade corresponds to the specified maximum offset voltage limits. Ensure compatibility with existing PCB footprints for the SO-8 package. Cross-reference the manufacturer's latest datasheet revision for any updates to absolute maximum ratings or pin configurations before finalizing procurement.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when designing circuits requiring high precision with minimal power consumption in single-supply environments. The 1pA input bias current makes it suitable for high-impedance sensor interfaces where leakage currents must be minimized. Consider the 1.7MHz bandwidth for applications requiring moderate speed with high DC accuracy. The shutdown feature is advantageous for battery-operated devices requiring extended standby periods.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the MAX4236/MAX4237 family of very high precision, 3V/5V rail-to-rail op amps. Unlike chopper-stabilized amplifiers, these devices achieve low offset through CMOS input stage design. The MAX4236 variant is unity-gain stable, distinguishing it from the higher-speed MAX4237 which requires gains greater than 5V/V for stability. The family targets portable instrumentation and industrial control applications.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

MAX4236AEUA+

Instrumentation, Op Amps, Buffer Amps FAQ

Does the MAX4236BESA+ use chopper stabilization?

No, the MAX4236 achieves its low offset voltage and drift characteristics without using any chopper techniques.

What is the input common-mode voltage range?

The input common-mode range extends from VEE - 0.15V to VCC - 1.2V, allowing ground sensing in single-supply applications.

How does the shutdown mode affect the output?

When the SHDN pin is pulled low, the quiescent current drops to less than 0.1µA, and the amplifier output is forced into a high-impedance state.