HFA1112IJ

Instrumentation, Op Amps, Buffer Amps Overview

The HFA1112IJ is a closed-loop buffer amplifier manufactured by Harris Corporation using the proprietary complementary bipolar UHF-1 process. It features user-programmable closed-loop gains of +1, -1, or +2 without external resistors. Key electrical parameters include an 850MHz typical -3dB bandwidth, a 2400V/µs slew rate, and a 60mA high output current. The device offers excellent gain accuracy of 0.99V/V, fast settling time of 11ns at 0.1%, and overdrive recovery under 10ns.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• User-programmable closed-loop gain selection of +1, -1, or +2 without external components
• Ultra-high-speed performance with wide bandwidth and very fast slew rate
• High output current capability for driving demanding loads
• Standard operational amplifier pinout for easy integration

Instrumentation, Op Amps, Buffer Amps Applications

• RF and IF processors
• Driving flash A/D converters
• High-speed communications systems
• Video switching and routing
• Radar systems

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the manufacturer designation carefully, as Harris Corporation's semiconductor assets were acquired by Intersil, which was later acquired by Renesas Electronics. Ensure the datasheet source explicitly identifies Harris Corporation as the original manufacturer to confirm authenticity and traceability of this specific part number.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when a high-speed buffer with flexible gain configuration is required without adding external resistors. It is suitable for applications needing impedance transformation, line driving, or medical imaging where fast settling and low distortion are critical. Compare against standard op-amps if lower speed requirements allow for cost reduction.

Instrumentation, Op Amps, Buffer Amps Part Context

This device belongs to the HFA1112 series of ultra-high-speed programmable gain buffer amplifiers. It is designed for video and RF applications requiring high bandwidth and low distortion. The series includes variants like the HFA1112IB and HFA1112/883, offering compatibility with existing op-amp pinouts while providing superior performance metrics.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with Intersil or Renesas equivalents such as the HFA1112IB if sourcing from current manufacturers.