MCP635T-E/UN

Instrumentation, Op Amps, Buffer Amps Overview

The MCP635T-E/UN is a dual operational amplifier from the MCP631/2/3/4/5/9 family, manufactured using Microchip's CMOS process. It features a typical gain-bandwidth product of 24 MHz and a slew rate of 10 V/µs. The device operates on a supply voltage range of +2.5V to +5.5V with a typical quiescent current of 2.5 mA per channel. It provides rail-to-rail output capability and an input common-mode range that includes the negative rail. The part includes Chip Select (CS) pins for low-power mode operation, reducing current consumption to 1 µA/ch. It is specified for extended temperature ranges from -40°C to +125°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Dual-channel architecture with independent Chip Select inputs for individual low-power shutdown control
• Rail-to-rail output stage combined with input range extending to the negative supply rail
• High-speed performance characterized by 24 MHz gain-bandwidth product and 10 V/µs slew rate
• Low noise density of 10 nV/√Hz at 1 MHz with minimal input bias current

Instrumentation, Op Amps, Buffer Amps Applications

• Fast low-side current sensing circuits
• Point-of-load control loops in power management systems
• Power amplifier control loops
• Optical detector amplifiers
• Multi-pole active filter designs

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific ordering suffix 'E' corresponds to the extended industrial temperature range (-40°C to +125°C) as defined in the official datasheet. Confirm the 'UN' suffix indicates the MSOP-10 package type. Ensure compatibility with single-supply operation requirements between 2.5V and 5.5V. Check for any specific handling precautions related to the exposed thermal pad if applicable to the package variant.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when dual-channel high-speed amplification is required alongside precise power management capabilities. The inclusion of Chip Select pins allows for dynamic power reduction, making it suitable for battery-operated devices. Consider the 24 MHz bandwidth and rail-to-rail output swing for applications demanding wide signal dynamics without phase reversal issues under overdrive conditions.

Instrumentation, Op Amps, Buffer Amps Part Context

This device belongs to the MCP63x family of high-speed, low-power operational amplifiers. Unlike the MCP65x series which offers higher bandwidth, the MCP63x family prioritizes a balance of speed and lower quiescent current. The dual configuration (MCP635) specifically integrates two amplifiers with dedicated Chip Select controls, distinguishing it from the non-shutdown MCP632 variant.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

For direct functional replacement within the same family, consider the MCP632T-E/UN, which offers identical electrical characteristics but lacks the Chip Select low-power feature. Verify that the application does not require the shutdown functionality provided by the CS pins before substituting.