MCP625-E/MF

Instrumentation, Op Amps, Buffer Amps Overview

The MCP625-E/MF is a dual operational amplifier from the MCP621/1S/2/3/4/5/9 family, featuring a typical gain-bandwidth product of 20 MHz and a slew rate of 30 V/µs. It incorporates mCal technology for low input offset voltage (±200 µV maximum) and includes dedicated CAL/CS pins for self-calibration and low-power mode operation. The device operates on a single supply voltage ranging from +2.5V to +5.5V, delivering high output current of ±70 mA with rail-to-rail output capability. It is housed in a 10-lead MSOP package and supports an extended operating temperature range from -40°C to +125°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Integrated mCal self-calibration mechanism minimizes input offset voltage upon power-up or calibration trigger.
• Dedicated CAL/CS pins enable independent control over amplifier activation and entry into ultra-low standby current mode.
• Rail-to-rail output stage combined with input range including the negative rail simplifies single-supply circuit design.
• High output drive capability allows direct interfacing with loads requiring significant current without external buffering.

Instrumentation, Op Amps, Buffer Amps Applications

• Optical detector amplification circuits
• Barcode scanner signal processing
• Multi-pole active filter implementations
• Driving analog-to-digital converter inputs
• Fast low-side current sensing applications

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify that the ordering suffix corresponds to the MSOP-10 package type as specified in the datasheet. Confirm the 'E' designation indicates compliance with the extended industrial temperature range specifications. Ensure the component matches the exact Microchip Technology part number to guarantee correct pinout alignment for the CAL/CS functionality.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when dual-channel precision is required alongside high-speed performance in a compact surface-mount footprint. The inclusion of calibration pins makes it suitable for systems needing periodic offset correction or strict power management during idle states. Evaluate the 20 MHz bandwidth against system signal frequencies to ensure adequate phase margin and stability under capacitive loading conditions.

Instrumentation, Op Amps, Buffer Amps Part Context

This device belongs to the MCP62x series of high-bandwidth, low-offset operational amplifiers designed for single-supply applications. The family offers various channel counts and package options, with the MCP625 specifically providing dual channels with calibration controls. It complements other Microchip analog solutions by offering integrated calibration features typically found in more complex or expensive instrumentation amplifiers.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Direct substitutes within the same family include the MCP622 for dual-channel operation without calibration pins, or the MCP629 for quad-channel configurations with similar calibration capabilities. Cross-family replacements may require verification of pin compatibility and electrical parameter alignment.

Instrumentation, Op Amps, Buffer Amps FAQ

How does the CAL/CS pin function affect the amplifier's power consumption?

When the CAL/CS pin is driven high, the amplifier enters a low-power standby mode with typical quiescent current reduced to 5 µA per channel. Driving it low activates the amplifier and initiates the internal self-calibration process.

What is the purpose of the mCal feature in the MCP625?

The mCal feature performs automatic self-calibration at power-up or when triggered via the CAL/CS pin, significantly reducing the input offset voltage to a maximum of ±200 µV without requiring external trimming components.