AD8189ARUZ-RL

Overview

The AD8189ARUZ-RL is a high-speed, single-supply triple 2-to-1 multiplexer manufactured by Analog Devices Inc. It features fully buffered inputs and outputs with a gain of two. The device operates on a single 5 V supply, consuming less than 20 mA. Key electrical parameters include a small-signal bandwidth of 350 MHz and a large-signal bandwidth of 300 MHz at 2 V p-p. The slew rate exceeds 1000 V/μs, with a settling time to 0.1% of 7 ns. Differential gain and phase errors are limited to 0.05%. The unit 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
• Single-supply operation optimized for professional video applications
• High off-isolation and low crosstalk performance for signal integrity

Applications

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

Procurement Notes

Verify the specific ordering suffix RL indicates reel packaging when sourcing components. Confirm that the AD8189 variant provides a gain of two, distinct from the unity-gain AD8188. Ensure the procurement documentation matches the 24-lead TSSOP physical form factor required for the target circuit board layout.

Selection Notes

Select this component when a gain of two is required within the multiplexing stage. The AD8189 differs from the AD8188 by utilizing internal feedback resistors and reference buffers. Designers must account for the VREF pin requirements to establish the correct output DC level and maximize dynamic range in single-supply configurations.

Part Context

This part belongs to the AD8188/AD8189 family of wideband multiplexers designed for video routing. While the AD8188 offers unity gain, the AD8189 provides a fixed gain of two. Both devices share similar switching speeds and power consumption profiles but differ in their internal amplifier configurations and reference voltage handling.

Replacement Considerations

The AD8188ARUZ-RL serves as a functional substitute if a gain of one is acceptable. Verify that the replacement does not require external feedback networks or different VREF biasing schemes compared to the original design specifications.