KM4170IS5TR3

Overview

The KM4170IS5TR3 is a low-cost, single-channel voltage feedback operational amplifier manufactured by Fairchild Semiconductor. It operates within a supply voltage range of +2.7V to +5V and features rail-to-rail input and output capabilities. Key electrical specifications include a gain bandwidth product of 2 MHz, a -3dB bandwidth of 4.3 MHz, and a slew rate of 5.3 V/µs. The device draws a typical supply current of 160 µA and supports an output current of 30 mA per channel. It is housed in a surface-mount SC-70-5 package and functions reliably across an operating temperature range of -40°C to +85°C.

Feature Summary

• Rail-to-rail input and output capability for maximum dynamic range
• Low power consumption with 160 µA supply current
• Single-supply operation from +2.7V to +5V
• Compact SC-70-5 surface mount packaging

Applications

• Portable battery-powered instrumentation
• Signal conditioning in low-voltage systems
• Active filtering in consumer electronics
• Sensor interface circuits requiring rail-to-rail swing

Procurement Notes

Verify the manufacturer marking on the component body matches Fairchild Semiconductor or ON Semiconductor branding, as acquisition occurred via merger. Confirm the suffix 'IS5TR3' corresponds to the SC-70-5 package and tape-and-reel shipping format. Ensure the datasheet version aligns with the specific lot date code to guarantee parameter consistency. Cross-reference the part number with official distributor catalogs to avoid counterfeit components.

Selection Notes

Select this component when a single-supply, low-voltage operational amplifier with rail-to-rail performance is required. It is suitable for applications where power efficiency is critical, given its 160 µA quiescent current. The SC-70-5 package makes it ideal for space-constrained designs. Consider the 2 MHz gain-bandwidth product for moderate-speed signal processing tasks rather than high-frequency RF applications.

Part Context

This part belongs to the KM4170 series of low-cost, rail-to-rail I/O amplifiers. The series includes variants such as the KM4170IT5TR3, which shares similar electrical characteristics but may differ in packaging or testing specifications. The KM4170 line is designed for general-purpose analog signal processing in portable and battery-operated devices, emphasizing cost-effectiveness and low power consumption.

Replacement Considerations

Direct substitutes include other single-channel, rail-to-rail op-amps in SC-70-5 packages with comparable supply voltage ranges and bandwidth. Verify pin compatibility and electrical parameters such as offset voltage and slew rate before substitution. Consult official replacement guides from Fairchild or ON Semiconductor for validated cross-references.