KM4100IC8TR3

Overview

The KM4100 is a low-cost, voltage feedback operational amplifier manufactured by Fairchild Semiconductor. It operates on +2.7V, +5V, or ±2.5V supplies with a 260MHz bandwidth and 150V/µs slew rate. The input voltage range extends 300mV below the negative rail and 1.2V below the positive rail. Output swing reaches 0.036V to 4.953V at Vs = +5V with a 2kΩ load. Supply current is 4.2mA, with power-down mode drawing 127µA for the KM4101 variant. It provides ±60mA linear output current and ±90mA short-circuit current.

Feature Summary

• Rail-to-rail output capability designed for single-supply operation
• High-speed performance with 260MHz bandwidth and 150V/µs slew rate
• Low supply current consumption of 4.2mA
• Robust output stage supporting ±60mA linear drive

Applications

• A/D driver circuits
• Active filters
• CCD imaging systems
• Video driver applications

Procurement Notes

Verify the specific suffix IC8TR3 against official datasheets to confirm package type and tape-and-reel specifications. Ensure compatibility with existing board layouts when replacing legacy components like AD8051 or LM7131. Confirm that the manufacturer documentation explicitly supports the requested operating voltage ranges and pin configurations before finalizing procurement.

Selection Notes

Select this component for high-speed signal processing requiring rail-to-rail output in single-supply environments. It serves as a direct replacement for AD8051 and LM7131 in compatible designs. Consider the 4.2mA quiescent current for battery-powered applications. Verify thermal requirements for SOT-23 or SOIC packages based on the specific load conditions.

Part Context

The KM4100 belongs to a family of low-cost, voltage feedback amplifiers from Fairchild Semiconductor. Related parts include the KM4101 (with disable), KM4110, and KM4111. These devices share similar low-voltage operation characteristics but vary in bandwidth and supply current. The series targets portable and video applications requiring efficient power usage and high speed.

Replacement Considerations

Publicly confirmed substitutes include AD8051 and LM7131 for single-supply applications.