AD8189ARUZ-R7

Overview

The AD8189ARUZ-R7 is a high-speed, single-supply triple 2:1 multiplexer manufactured by Analog Devices Inc. It features fully buffered inputs and outputs with a voltage gain of +2 V/V. The device operates on a single 5 V supply, consuming approximately 20 mA. Key electrical specifications include a small-signal bandwidth of 350 MHz and a large-signal bandwidth of 300 MHz at 2 V p-p. The unit exhibits a slew rate of 1000 V/μs and a settling time of 7 ns to 0.1%. It provides -95 dB off-isolation at 5 MHz and -84 dB all-hostile crosstalk at 5 MHz. The component is housed in a 24-lead TSSOP package.

Feature Summary

• Triple 2:1 multiplexing architecture with fully buffered inputs and outputs for signal integrity
• High-speed switching capability with 4 ns channel-to-channel transition time
• Integrated high-impedance disable feature allowing output bus configuration
• Optimized video performance with low differential gain and phase errors

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 format. Ensure the selected variant matches the required reel quantity and tape specifications for automated assembly processes. Cross-reference the manufacturer part number with authorized distributor catalogs to validate authenticity and current availability status before finalizing procurement orders.

Selection Notes

Select this component when a gain-of-two amplification is required alongside multiplexing functions. The AD8189 differs from the AD8188 by its internal feedback network which sets the voltage gain. Designers must account for the VREF pin requirements to establish proper DC output levels. Verify that the single-supply operation constraints align with the system's power distribution architecture.

Part Context

This component belongs to the AD8188/AD8189 family of high-speed analog switches. While the AD8188 offers unity gain, the AD8189 provides a fixed gain of two. Both devices share identical pinouts and switching characteristics but differ in their internal amplifier configurations. This family targets applications requiring simultaneous signal routing and amplification within a compact surface-mount footprint.

Replacement Considerations

The AD8188ARUZ serves as a functional substitute if unity gain is acceptable instead of the specified gain of two. Other series members like the AD8187 offer higher bandwidth but may require different supply voltages or control logic adjustments.