HFA1120IB

Instrumentation, Op Amps, Buffer Amps Overview

The HFA1120IB is a single-channel current feedback amplifier manufactured by Harris Corporation, housed in an 8-SOIC surface-mount package. It operates within a supply voltage range of 9 V to 11 V and draws 21 mA of supply current. The device features a -3 dB bandwidth of 670 MHz and a slew rate of 2300 V/µs. Electrical specifications include a maximum input offset voltage of 2 mV, an input bias current of 12 µA, and an output current capability of 60 mA per channel. It functions reliably across a temperature range of -40°C to 85°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Current feedback architecture designed for high-speed signal processing applications
• Low distortion characteristics suitable for precision video and RF circuits
• Integrated thermal management supporting operation in industrial temperature ranges

Instrumentation, Op Amps, Buffer Amps Applications

• Video buffering and line driving
• High-speed data acquisition systems
• RF signal conditioning

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the manufacturer origin, as Harris Corporation assets were acquired by Renesas Electronics. Confirm the specific suffix indicates the standard SOIC-8 package without additional annealing or tape-and-reel modifications unless explicitly stated in the ordering information. Ensure the component matches the original Harris datasheet specifications rather than updated Renesas revisions if strict legacy compliance is required.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when a current feedback topology is required for wideband performance with low distortion. Compare against the HFA1100 series for higher bandwidth needs or the HFA1112 for programmable gain requirements. Verify that the 670 MHz bandwidth meets the system's frequency response targets and that the 8-SOIC footprint fits the PCB layout constraints.

Instrumentation, Op Amps, Buffer Amps Part Context

The HFA1120 belongs to the Intersil/Harris HFA11xx family of high-speed video amplifiers. This series utilizes complementary bipolar processes to achieve high slew rates and wide bandwidths. The IB suffix typically denotes the plastic SOIC package variant, distinguishing it from ceramic or leaded alternatives within the same functional family.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.