MAX40077AUA+

Instrumentation, Op Amps, Buffer Amps Overview

The MAX40077AUA+ is a dual-channel, unity-gain stable operational amplifier from the MAX4007x family. It operates on a single supply voltage ranging from 2.7V to 5.5V and features rail-to-rail output capability. The device provides a gain-bandwidth product of 10MHz and a slew rate of 3V/µs. Key electrical characteristics include an input offset voltage of 30µV, an input bias current of 0.3pA typical, and an input voltage noise density of 4.2nV/√Hz at 30kHz. It draws 2.2mA of quiescent current per amplifier and supports operation across a temperature range of -40°C to +125°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Ultra-low input bias current for high-impedance signal conditioning
• Low-noise performance with minimal distortion
• Rail-to-rail output swings with ground-sensing inputs
• Unity-gain stability suitable for direct buffering

Instrumentation, Op Amps, Buffer Amps Applications

• Transimpedance Amplifiers
• ADC Buffers
• Medical Instrumentation
• Strain Gauges/Sensor Amplifiers

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific package marking and date code upon receipt to ensure authenticity. Confirm that the component matches the MAX40077AUA+ designation and that the packaging integrity remains intact during transit. Cross-reference the manufacturer's documentation for any recent revisions or updates regarding the part specifications.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when a dual-channel configuration is required alongside low-noise and low-bias current specifications. It is appropriate for applications demanding rail-to-rail output swing within a single-supply environment. Ensure the system bandwidth requirements align with the 10MHz gain-bandwidth product and verify that the 2.2mA quiescent current fits the power budget constraints.

Instrumentation, Op Amps, Buffer Amps Part Context

This device belongs to the MAX40079/MAX40087/MAX40077/MAX40089/MAX40078 family of wideband, low-noise amplifiers. While other members like the MAX40087 offer higher bandwidth (42MHz) and decompensated stability, the MAX40077 specifically provides unity-gain stability. The 'A' in the model number indicates the μMAX-8 package variant.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

The MAX40077EUA+ serves as a pin-compatible alternative offering the same electrical characteristics but housed in a USOP-8 package.