MCP634T-E/ST

Instrumentation, Op Amps, Buffer Amps Overview

The MCP634T-E/ST is a quad operational amplifier from the MCP631/2/3/4/5/9 family, manufactured by Microchip Technology. It features a 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, unity-gain stability, and an input range including the negative rail. The part is housed in a 14-TSSOP package and supports an extended operating temperature range from -40°C to +125°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• High-speed performance with 24 MHz gain-bandwidth product and 10 V/µs slew rate
• Rail-to-rail output capability with low input bias current
• Low-power operation mode via Chip Select (CS) pin
• No phase reversal during input overdrive conditions

Instrumentation, Op Amps, Buffer Amps Applications

• Fast low-side current sensing
• Point-of-load control loops
• Power amplifier control loops
• Optical detector amplifiers

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific ordering suffix 'T' indicates tape-and-reel packaging and '/ST' denotes the TSSOP-14 package configuration. Confirm that the '-E' suffix corresponds to the extended industrial temperature range (-40°C to +125°C). Ensure compatibility with single-supply systems operating between 2.5V and 5.5V. Check for required bypass capacitors near the VDD pin as specified in the datasheet application guidelines.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component for applications requiring high bandwidth and fast transient response within a low-voltage single-supply environment. The quad configuration allows for multiple signal paths in a compact footprint. Consider the low input bias current for high-impedance sensor interfaces. Evaluate the thermal resistance of the TSSOP package if high ambient temperatures or dense PCB layouts are present.

Instrumentation, Op Amps, Buffer Amps Part Context

This device belongs to the MCP63x series of high-speed, low-power CMOS operational amplifiers. It shares architectural similarities with the MCP62x and MCP65x families but offers distinct performance characteristics optimized for speed and noise. The quad variant integrates four independent amplifiers, providing a cost-effective solution for multi-channel signal conditioning compared to using individual single or dual packages.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Direct functional substitutes within the same family include MCP634-E/ST (tube packaging) and MCP634T-E/SL (SOIC-14 packaging). Cross-family alternatives like MCP6234 or MCP6534 may offer different trade-offs in power consumption or noise performance but require verification of pinout and electrical parameter compatibility.