HFA1112IBZ

Instrumentation, Op Amps, Buffer Amps Overview

The HFA1112IBZ is a closed-loop buffer amplifier manufactured by Renesas Electronics Corporation, utilizing 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 850 MHz typical -3dB bandwidth, a 2400 V/µs slew rate, and a 60 mA high output current. The device operates with a supply voltage range of 9 V to 11 V, drawing 21 mA of supply current. It exhibits low differential gain (0.02%) and phase (0.04 deg) distortion, with an input bias current of 25 µA and input offset voltage of 8 mV.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• User-programmable closed-loop voltage gains of +1, -1, or +2 selectable via pin configuration without external components
• Ultra-high speed performance characterized by an 850 MHz bandwidth and 2400 V/µs slew rate
• High output drive capability delivering up to 60 mA of output current
• Low distortion specifications including 0.02% differential gain and 0.04 degree differential phase

Instrumentation, Op Amps, Buffer Amps Applications

• RF and IF processors
• Driving flash analog-to-digital converters
• High-speed communications systems
• Video switching and routing
• Radar systems

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify component authenticity through authorized Renesas distributors due to potential legacy status. Confirm RoHS compliance as standard versions may differ from MIL-STD-883 variants. Check for end-of-life notifications or obsolescence notices prior to procurement. Ensure packaging matches the 8-PDIP specification required for your assembly process. Validate that the specific suffix corresponds to the desired temperature and lead-free attributes.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this buffer when programmable gain flexibility is required without adding external resistors. Choose this part for applications demanding high output current and wide bandwidth in a standard op-amp footprint. Consider this device for impedance transformation and line driving tasks where fast settling time is critical. Evaluate the 8-PDIP package constraints against your board layout requirements before finalizing the design.

Instrumentation, Op Amps, Buffer Amps Part Context

The HFA1112 series belongs to Renesas' portfolio of ultra-high-speed programmable gain buffer amplifiers. Manufactured on the UHF-1 complementary bipolar process, these devices are designed for video, RF, and high-speed data acquisition applications. The series offers a flexible upgrade path from standard buffers while maintaining compatibility with existing operational amplifier pinouts.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

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