HFA1145IBZ

Overview

The HFA1145IBZ is a high-speed, low-power current feedback video operational amplifier manufactured by Renesas Electronics Corporation. It features a TTL/CMOS compatible disable control on pin 8 that reduces supply current and forces the output into a high-impedance state when pulled low. The device operates within a temperature range of -40°C to 85°C and utilizes an 8-lead SOIC package. Key electrical specifications include a typical supply current of 5.8mA, a wide -3dB bandwidth of 330MHz at a gain of +2, and a very fast slew rate of 1000V/µs.

Feature Summary

• Features a TTL/CMOS compatible disable control that reduces power consumption and isolates the output for switching applications
• Provides excellent gain flatness and superior differential gain and phase characteristics suitable for professional video processing
• Built using Intersil’s proprietary complementary bipolar UHF-1 process for high performance and low power operation

Applications

• Flash A/D Drivers
• Video Switching and Routing
• Professional Video Processing
• Video Digitizing Boards/Systems
• Multimedia Systems

Procurement Notes

Verify the manufacturer origin as the datasheet indicates Intersil design heritage now under Renesas. Confirm the 'Z' suffix denotes Pb-free plus anneal RoHS compliance. Ensure the specific package type matches the required PCB footprint. Check for any recent product change notices regarding manufacturing sites or material updates.

Selection Notes

Select this component for designs requiring low power consumption alongside high-speed signal processing capabilities. The integrated disable feature makes it ideal for multiplexed systems where power management and channel isolation are critical. Consider the specific feedback resistor requirements to optimize bandwidth and stability for the target gain configuration.

Part Context

The HFA1145 serves as a low-power, high-performance upgrade for the CLC410 amplifier. It is designed for applications demanding precise video signal handling with minimal power draw. The device is part of a family including variants like the HFA1145IB and HFA1145IP, offering different packaging options while maintaining identical electrical performance profiles.

Replacement Considerations

HFA1145IB