AD8189ARUZ

Overview

The AD8189ARUZ is a high-speed, single-supply triple 2:1 multiplexer manufactured by Analog Devices Inc. It features a gain of two and operates on a single 5 V supply. The device provides a small-signal bandwidth of 350 MHz and a large-signal bandwidth of 300 MHz. Key electrical parameters include a slew rate of 1000 V/μs and a settling time of 7 ns to 0.1%. It offers -95 dB off isolation at 5 MHz and -84 dB all-hostile crosstalk at 5 MHz. The component consumes approximately 20 mA of quiescent current and is housed in a 24-lead TSSOP package.

Feature Summary

• Triple 2:1 multiplexing architecture with fully buffered inputs and outputs
• High-speed switching capability with fast channel-to-channel transition times
• Excellent video specifications including low differential gain and phase errors
• High impedance disable feature for connecting multiple outputs without loading

Applications

• Switching RGB signals in LCD and plasma displays
• RGB video switchers and routers
• Professional and component video multiplexing

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm packaging type and reel specifications. Ensure compatibility with the required voltage levels and load conditions before finalizing procurement. Cross-reference the manufacturer part number with authorized distributors to confirm authenticity and availability status.

Selection Notes

Select the AD8189ARUZ when a gain of two is required for the multiplexed signal path. Verify that the application supports single-supply operation within the specified voltage range. Consider the thermal resistance and power dissipation limits if operating at elevated ambient temperatures or under heavy load conditions.

Part Context

The AD8189ARUZ belongs to the AD8188/AD8189 family of high-speed analog switches. While the AD8188 provides unity gain, the AD8189 integrates an internal gain-of-two amplifier. Both devices share similar pinouts and performance characteristics, differing primarily in their signal amplification configuration and reference input requirements.

Replacement Considerations

The AD8188ARUZ is a related variant within the same product family but operates with unity gain rather than the gain of two found in the AD8189. Direct substitution requires evaluating whether the system can accommodate the change in signal amplification and adjusting the external circuitry accordingly.