AD8185ARU-REEL7

Overview

The AD8185ARU-REEL7 is a high-speed triple 2:1 multiplexer manufactured by Analog Devices Inc. It features a voltage gain of +2 and operates on ±5 V supplies with a quiescent current of 25 mA. The device provides a –3 dB bandwidth of up to 380 MHz for small signals (200 mV p-p) and 310 MHz for large signals (2 V p-p). Key switching characteristics include a channel-to-channel switch time of 15 ns, an enable-to-channel-on time of 20 ns, and an enable-to-channel-off time of 45 ns. It offers excellent video specifications, including 0.01% differential gain error and 0.02° differential phase error, housed in a 24-lead TSSOP package.

Feature Summary

• Triple 2:1 multiplexing architecture with fully buffered inputs and outputs
• High-speed signal handling with 1000 V/µs slew rate and fast settling time
• Low distortion performance suitable for professional video applications
• High impedance output disable feature for building larger input arrays

Applications

• Pixel switching for Picture-In-Picture displays
• RGB signal switching in LCD and Plasma displays
• RGB video switchers and routers

Procurement Notes

Verify the REEL7 suffix indicates tape-and-reel packaging when sourcing. Confirm RoHS compliance status as specified in the ordering guide. Ensure the operating temperature range matches the -40°C to +85°C specification. Check for pinout compatibility with the 24-lead TSSOP RU-24 package dimensions.

Selection Notes

Select this component over the AD8183 if a voltage gain of +2 is required for driving reverse-terminated loads. Verify that the 380 MHz bandwidth meets the system's frequency requirements. Consider the 25 mA power consumption against available supply capabilities. Ensure the logic voltage levels for SEL A/B and OE inputs are compatible with the control circuitry.

Part Context

The AD8185 is part of the AD8183/AD8185 family of high-speed triple 2:1 multiplexers from Analog Devices. While the AD8183 operates at unity gain, the AD8185 provides a fixed gain of +2. Both devices share similar dynamic performance and packaging options, designed for professional video and RGB multiplexing applications requiring low crosstalk and high isolation.

Replacement Considerations

The AD8183ARUZ-REEL7 serves as a functional substitute within the same family but operates at unity gain (G=+1) rather than gain of two. Direct replacement requires adjusting the circuit design to account for the difference in voltage gain.