MCP625-E/UN

Instrumentation, Op Amps, Buffer Amps Overview

The MCP625-E/UN is a dual operational amplifier from the MCP621/1S/2/3/4/5/9 family, featuring mCal self-calibration at power-up. It offers a typical gain-bandwidth product of 20 MHz and a slew rate of 10 V/µs. The device operates on a single supply voltage ranging from +2.5V to +5.5V with a typical quiescent current of 2.5 mA per channel. Key electrical specifications include a maximum input offset voltage of ±200 µV after calibration, an input bias current of 5 pA, and a high output current capability of ±70 mA. It supports rail-to-rail output and includes inputs that extend to the negative rail.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Integrated mCal technology provides automatic offset calibration upon power-up or via the CAL/CS pin toggle.
• Rail-to-rail output swing capability combined with input range including the negative supply rail.
• Low noise performance with 13 nV/√Hz input voltage noise density and low input bias current.
• No phase reversal occurs even when input signals exceed the common-mode voltage range.

Instrumentation, Op Amps, Buffer Amps Applications

• Optical detector amplification
• Barcode scanners
• Multi-pole active filters
• Driving analog-to-digital converters (ADCs)
• Fast low-side current sensing

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix 'E' indicates the industrial temperature grade (-40°C to +125°C) and 'UN' denotes the MSOP-10 package. Confirm that the CAL/CS pins are utilized correctly for low-power mode switching if required by the design. Ensure supply voltage stays within the 2.5V to 5.5V range to maintain specified electrical characteristics.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component for applications requiring high bandwidth and low offset without external trimming. The dual configuration is suitable for stereo signal processing or differential amplification. Consider the MSOP-10 package size for space-constrained designs. Verify thermal dissipation requirements given the 2.5 mA/ch quiescent current in standard operation.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the MCP62x series of high-speed, low-power operational amplifiers. The family includes single, dual, and quad variants with varying numbers of channels and CAL/CS pins. The MCP625 specifically provides two independent amplifiers with individual calibration controls, optimizing it for precision analog signal conditioning tasks.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Direct functional substitutes within the same family include the MCP622 (single CAL/CS pin for both channels) or MCP629 (quad). Cross-family replacements like MCP635 offer higher bandwidth but different noise profiles. Verify pin compatibility and calibration logic before substitution.

Instrumentation, Op Amps, Buffer Amps FAQ

How does the mCal feature affect the input offset voltage?

The mCal feature automatically calibrates the input offset voltage at power-up or when the CAL/CS pin is toggled, reducing the maximum input offset voltage to ±200 µV.

Can the MCP625 operate with inputs below ground?

Yes, the input range includes the negative rail (VSS), allowing the amplifier to handle signals down to VSS - 0.3V.

What is the purpose of the CAL/CS pins?

The CAL/CS pins allow the user to trigger internal calibration to reset the offset voltage and enable a low-power mode when pulled high.