AD812AR

Overview

The AD812AR is a dual, low-power, current feedback video amplifier housed in an 8-lead SOIC package. It operates on single supplies from +3 V to +36 V or dual supplies up to ±18 V. Key electrical parameters include a unity gain bandwidth of 145 MHz and a slew rate of 1600 V/ms at ±15 V. The device provides 50 mA output current per channel and maintains excellent video specifications, including 0.02% differential gain error and 0.02° differential phase error into a 150 Ω load.

Feature Summary

• Optimized for driving back-terminated video loads with high gain flatness
• Low power consumption suitable for battery-operated portable applications
• High-speed performance with wide bandwidth and fast slew rates
• Internal short-circuit protection for robust operation

Applications

• Video line drivers
• Professional cameras
• Video switchers
• Special effects equipment

Procurement Notes

Verify the specific ordering suffix (e.g., AR vs. ARZ) against the manufacturer's current datasheet to confirm lead-free status and RoHS compliance. Ensure the package type matches the PCB footprint requirements. Confirm the temperature range meets the operational environment specifications before finalizing procurement.

Selection Notes

Select this component for applications requiring dual amplification in a compact surface-mount package. It is ideal for designs needing high bandwidth and low power consumption simultaneously. Consider the current feedback architecture when designing feedback networks, as bandwidth depends on the feedback resistor value rather than closed-loop gain.

Part Context

The AD812 belongs to Analog Devices' family of low-power video amplifiers. It integrates two independent current feedback amplifiers into a single 8-lead plastic mini-DIP or SOIC package. This integration reduces board space compared to using discrete amplifiers while maintaining high performance metrics required for professional video signal processing.

Replacement Considerations

Check for AD812AN for DIP packaging or AD812AR-REEL/REEL7 for tape-and-reel manufacturing options within the same functional family.