AD811ANZ

Overview

The AD811ANZ is a single-channel current feedback video amplifier manufactured by Analog Devices Inc. in an 8-PDIP package. It features a -3 dB bandwidth of 140 MHz at unity gain and 120 MHz at a gain of +2, with a slew rate of 2500 V/µs. The device operates on supply voltages ranging from ±5 V to ±12 V, drawing 14.5 mA of supply current. Key electrical specifications include an input offset voltage of 3 mV, an input bias current of 10 µA, and a voltage noise density of 1.9 nV/√Hz.

Feature Summary

• Optimized for broadcast-grade video systems with low differential gain and phase errors
• High-speed transient response suitable for pulse applications and wide dynamic range signals
• Current feedback architecture maintains consistent bandwidth across varying gain settings

Applications

• Video crosspoint switches
• ADC and DAC buffer stages in data acquisition systems
• Video line drivers for signal transmission
• DC restoration circuits

Procurement Notes

Verify the specific suffix ANZ indicates lead-free compliance and RoHS adherence before procurement. Confirm the 8-DIP through-hole package dimensions match the target PCB footprint. Ensure the operating temperature range of -40°C to +85°C aligns with the environmental requirements of the final assembly.

Selection Notes

Select this component when high slew rates and wide bandwidth are required for video signal integrity. The current feedback topology offers superior performance over voltage feedback amplifiers in high-speed applications. Consider the PDIP-8 package for prototyping or applications requiring through-hole mounting capabilities.

Part Context

This part belongs to the AD811 series of high-speed video operational amplifiers. It is designed to meet stringent video performance standards, including gain flatness and low distortion. The series provides solutions for professional video processing where signal fidelity and speed are critical parameters.

Replacement Considerations

The AD811JRZ serves as a surface-mount alternative within the same family, offering identical electrical characteristics in an SOIC-8 package.