HFA1120MJ/883

Instrumentation, Op Amps, Buffer Amps Overview

The HFA1120MJ/883 is a high-speed, low distortion current feedback operational amplifier manufactured by Harris Corporation. It features a wide bandwidth of 670 MHz and a high slew rate of 2300 V/µs. The device operates with a supply voltage range of 9 V to 11 V and draws 21 mA of supply current. It provides an output current of 60 mA per channel with an input offset voltage of 2 mV and input bias current of 12 µA. Designed for military specifications under MIL-STD-883, it is housed in an 8-pin ceramic dual in-line package (CDIP) suitable for surface mount or through-hole applications within a temperature range of -40°C to 85°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• High-speed current feedback architecture providing wide bandwidth and fast transient response
• Low distortion characteristics optimized for signal integrity in high-frequency applications
• Military-grade construction compliant with MIL-STD-883 standards for reliability
• Programmable output limiting capabilities to protect downstream circuitry

Instrumentation, Op Amps, Buffer Amps Applications

• Video distribution systems requiring high fidelity signal amplification
• Wideband instrumentation and measurement equipment
• RF signal processing and baseband conditioning circuits
• High-speed data acquisition systems

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix designation to ensure compliance with required military qualification standards. Confirm package type compatibility with existing board layouts, as ceramic dual in-line packages differ from standard plastic variants. Check for updated manufacturer documentation regarding lead-free requirements if applicable to your assembly process. Ensure supply chain authenticity through authorized distributors or certified surplus suppliers.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when high slew rate and wide bandwidth are critical for maintaining signal accuracy at frequencies exceeding hundreds of megahertz. Consider the current feedback topology for applications demanding fast settling times independent of gain settings. Evaluate power consumption constraints against the 21 mA supply current requirement. Ensure thermal management strategies accommodate the operating temperature range and package thermal resistance.

Instrumentation, Op Amps, Buffer Amps Part Context

The HFA1120 series belongs to a family of high-performance current feedback amplifiers designed by Harris Corporation, later acquired by Intersil and subsequently Renesas Electronics. These devices utilize proprietary complementary bipolar processes to achieve superior speed and linearity compared to traditional voltage feedback op-amps. The MJ/883 variant specifically denotes a military-grade version packaged in ceramic, offering enhanced durability and performance stability for defense and aerospace environments.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Direct replacements may include other Harris or Intersil current feedback amplifiers with similar bandwidth and pinout configurations. Verify electrical parameter equivalence, particularly slew rate and bandwidth, before substituting. Consult official datasheets for mechanical drawing compatibility regarding the CDIP-8 package dimensions.