AD8188ARUZ

Overview

The AD8188ARUZ is a high-speed, single-supply triple 2:1 multiplexer manufactured by Analog Devices Inc. It features fully buffered inputs and outputs with a small-signal bandwidth of 350 MHz and a large-signal bandwidth of 300 MHz. The device operates on a single supply voltage ranging from 3.5 V to 5.5 V, consuming approximately 19 mA. Key performance metrics include a slew rate of 1000 V/μs, a settling time of 7 ns to 0.1%, and differential gain/phase errors of 0.05%. It offers -84 dB all-hostile crosstalk at 5 MHz and -95 dB off-isolation. The component is housed in a 24-lead TSSOP package.

Feature Summary

• Fully buffered input and output stages for signal integrity
• High-speed switching capability with minimal transient glitches
• Excellent video specifications including low differential gain and phase error
• High impedance disable feature for bus-compatible matrix configurations

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 ARUZ corresponds to the tube packaging format when sourcing components. Confirm that the selected variant matches the required gain configuration, as the AD8188 provides unity gain while the related AD8189 provides a gain of two. Ensure compatibility with the 24-lead TSSOP footprint during PCB layout verification.

Selection Notes

Select the AD8188ARUZ for applications requiring a gain of one, whereas the AD8189 should be chosen if a gain of two is necessary. Consider the single-supply operation constraints, specifically the input and output voltage compliance limits relative to the supply rails. Evaluate the need for AC-coupling or DC restoration circuits if operating within tight dynamic range requirements on a single 5 V supply.

Part Context

This component belongs to the AD8188/AD8189 family of high-speed analog multiplexers designed for professional video applications. It shares architectural similarities with other Analog Devices video switches but is distinct in its triple 2:1 configuration and specific buffering topology. The part is optimized for maintaining signal fidelity in high-bandwidth video routing environments.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.