HFA1112IP

Instrumentation, Op Amps, Buffer Amps Overview

The HFA1112IP is a closed-loop buffer amplifier manufactured by Renesas Electronics Corporation (formerly Intersil) in an 8-PDIP package. It features a typical -3dB bandwidth of 850 MHz and a slew rate of 2400 V/µs. The device operates with a supply voltage range of 9 V to 11 V, drawing 21 mA of supply current. Key electrical parameters include a maximum output current of 60 mA, input bias current of 25 µA, and input offset voltage of 8 mV. It supports operation temperatures from -40°C to +85°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• User-programmable closed-loop voltage gains of +1, -1, or +2 without external resistors
• Ultra-high speed performance utilizing complementary bipolar UHF-1 process technology
• Low differential gain and phase specifications for video signal integrity

Instrumentation, Op Amps, Buffer Amps Applications

• Component and composite video systems
• Upgrade paths for low gain amplifiers requiring standard op amp pinouts
• High-speed programmable gain buffer applications

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix IP indicates the PDIP package variant. Confirm RoHS compliance status as historical data may indicate non-compliance. Check current availability as the part is listed as obsolete or discontinued in some distributor records. Ensure the application environment matches the specified industrial temperature range.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when a high-bandwidth buffer with selectable internal gain is required without external feedback networks. Compare against the HFA1110 for standard buffer needs or HFA1113 if programmable output clamps are necessary. Consider the 8-pin DIP footprint constraints and the specific UHF-1 process characteristics for high-frequency stability.

Instrumentation, Op Amps, Buffer Amps Part Context

The HFA1112 belongs to the HFA111x series of ultra-high-speed buffer amplifiers. It shares pinout compatibility with existing operational amplifiers to facilitate design upgrades. The series leverages Intersil's proprietary complementary bipolar technology to achieve wide bandwidth and fast slew rates suitable for demanding analog signal processing tasks.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. The product is listed as obsolete.