HFA1145IPZ

Overview

The HFA1145IPZ is a high-speed, low-power current feedback video operational amplifier manufactured by Intersil. It features a -3dB bandwidth of 330MHz and a slew rate of 2100 V/μs. The device supports dual supply voltages of ±9V to ±11V or ±4.5V to ±5.5V, with an output current per channel of 60mA. It utilizes Intersil's proprietary complementary bipolar UHF-1 process and includes an output disable function. The component is available in an 8-pin DIP package.

Feature Summary

• High-speed current feedback architecture optimized for video applications
• Low power consumption design utilizing proprietary UHF-1 process
• Integrated output disable functionality for system control

Applications

• Video signal processing circuits
• High-speed data acquisition systems
• Professional video equipment amplification stages

Procurement Notes

Verify the manufacturer designation as Intersil or Renesas Electronics Corporation, as corporate acquisitions may affect labeling. Confirm the package type is 8DIP and check for RoHS compliance status if required by specific project regulations. Ensure the part number suffix matches the exact pinout and electrical specifications documented in the official datasheet to avoid integration errors.

Selection Notes

Select this component when a current feedback topology is required for wideband video signals. The 330MHz bandwidth suits applications demanding fast transient response. Consider the dual supply voltage range compatibility with existing system rails. The low power characteristic makes it suitable for battery-operated or thermally constrained portable video devices compared to standard voltage feedback alternatives.

Part Context

This device belongs to the HFA1145 series of current feedback amplifiers designed by Intersil. It is part of a family of high-speed analog components leveraging UHF-1 technology. The series targets the professional video market, offering performance metrics that bridge the gap between general-purpose op-amps and specialized RF amplifiers. The IPZ suffix indicates a lead-free, RoHS-compliant plastic DIP package variant.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify pin compatibility and electrical parameters against potential alternatives from other manufacturers before substitution.