MCP6N16-100E/MS

Instrumentation, Op Amps, Buffer Amps Overview

The MCP6N16-100E/MS is a single-channel zero-drift instrumentation amplifier manufactured by Microchip Technology. It features an internal offset correction architecture that minimizes input offset voltage to ±17 µV and drift to ±60 nV/°C at a minimum gain of 100 V/V. The device operates on a supply voltage range of 1.8V to 5.5V with a typical quiescent current of 1.1 mA. It provides rail-to-rail input and output capabilities, a 3dB bandwidth of 500 kHz, and a gain-bandwidth product of 35 MHz. Key specifications include a common-mode rejection ratio (CMRR) of 140 dB and enhanced EMI protection with an EMIRR of 111 dB at 2.4 GHz.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Zero-drift architecture utilizing internal offset correction to eliminate 1/f noise and maintain high DC precision across temperature variations.
• Rail-to-rail input and output performance allowing operation from a single low-voltage power supply without crossover distortion.
• Integrated EMI filters at the input pins providing significant electromagnetic interference rejection for noisy environments.
• Flexible gain configuration set by two external resistors with a fixed minimum stable gain option of 100 V/V.

Instrumentation, Op Amps, Buffer Amps Applications

• High-side current sensing
• Wheatstone bridge sensor signal conditioning
• Difference amplifiers requiring level shifting
• Power control loops

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix 'E' corresponds to the extended industrial temperature range (-40°C to +125°C) as defined in the manufacturer's documentation. Confirm the '/MS' package designation matches the required MSOP-8 footprint for your PCB layout. Ensure the minimum gain requirement aligns with the GMIN=100 specification to guarantee optimal offset and noise performance.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when high DC precision is critical and low-frequency noise must be minimized. The fixed gain of 100 V/V makes it suitable for applications where the signal amplitude requires substantial amplification before further processing. Consider the 1.1 mA quiescent current if power consumption is a constraint in portable designs.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the MCP6N16 family of zero-drift instrumentation amplifiers. The '-100' suffix indicates a specific variant optimized for a minimum gain of 100 V/V, distinguishing it from other variants offering gains of 1 or 10 V/V. This optimization allows users to balance input offset voltage against bandwidth and noise density based on their specific application requirements.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Other variants within the same family, such as MCP6N16-001 or MCP6N16-010, offer different minimum gain options but share similar pinouts and electrical characteristics. Verify that the alternative gain setting meets the system's amplification needs before substitution.

Instrumentation, Op Amps, Buffer Amps FAQ

How does the internal offset correction affect the input noise?

The internal chopper stabilization architecture eliminates 1/f noise, resulting in a very low input voltage noise density of 45 nV/√Hz at frequencies below 500 Hz.

What is the purpose of the EN pin?

The Enable (EN) pin allows the user to place the amplifier into a low-power shutdown mode, reducing ground current significantly when the device is not in use.