MAX4036EXK

Instrumentation, Op Amps, Buffer Amps Overview

The MAX4036EXK is a single-channel operational amplifier manufactured by Analog Devices Inc. under the Maxim Integrated brand. It operates from a single supply voltage ranging from 1.4V to 3.6V without an internal reference, or 1.8V to 3.6V when utilizing the optional buffered reference. The device consumes only 800nA of supply current per amplifier and features rail-to-rail outputs capable of driving 5kΩ loads and 5000pF capacitive loads. It is housed in a tiny UCSP package and supports operation across a temperature range of -40°C to +125°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Ultra-low 800nA per amplifier supply current for extended battery life
• Rail-to-rail outputs drive 5kΩ and 5000pF loads without phase reversal
• Low 1.0pA typical input bias current for high-impedance applications
• Available in tiny UCSP, SC70, SOT23, TDFN, and μMAX packages

Instrumentation, Op Amps, Buffer Amps Applications

• Battery-powered and solar-powered systems requiring minimal quiescent current
• Portable medical instrumentation such as electrocardiogram monitors
• Micropower thermostats and potentiostats for environmental control
• Electrometer amplifiers and remote sensor signal conditioning
• Active badges and pH meters with strict power constraints

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix EXK against the official manufacturer datasheet to confirm the exact package type and temperature grade. Ensure the selected variant matches the required supply voltage range and load driving capabilities for your specific circuit design before procurement.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when ultra-low power consumption is critical alongside rail-to-rail output swing requirements. Consider the MAX4037 variant if an integrated 1.232V buffered reference is needed. Verify that the 800nA current draw aligns with the system's total power budget and that the UCSP package fits the available PCB real estate.

Instrumentation, Op Amps, Buffer Amps Part Context

The MAX4036EXK belongs to the MAX4036/MAX4037/MAX4038/MAX4039 family of low IBIAS operational amplifiers. This series is designed for micropower applications where space and energy efficiency are paramount. The EXK suffix typically denotes a specific packaging configuration within the UCSP or similar small-outline family offered by Maxim Integrated.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Official substitutes include other members of the MAX403x family such as the MAX4037, MAX4038, or MAX4039, depending on channel count and reference requirements. Cross-reference with the manufacturer's selection guide to ensure pin compatibility and electrical parameter equivalence.