AD8184AR-REEL

Overview

The AD8184AR-REEL is a high-speed 4-to-1 video multiplexer manufactured by Analog Devices Inc. in a 14-lead SOIC package. It features a -3 dB signal bandwidth of 700 MHz and a slew rate of 750 V/µs. The device operates on ±5 V supplies with a quiescent current of 4.4 mA when enabled. Key performance metrics include a channel switching time of 10 ns, an all-hostile crosstalk of -95 dB at 5 MHz, and OFF isolation of -115 dB at 5 MHz. Differential gain and phase errors are specified at 0.01% and 0.01° respectively for loads greater than 2 kΩ.

Feature Summary

• Fully buffered inputs and outputs provide unidirectional signal paths with minimal loading effects.
• Fast channel switching capability supports pixel switching applications such as picture-in-picture.
• High speed disable feature allows multiple devices to be connected in parallel without bus loading.
• Excellent video specifications including low differential gain error and high OFF isolation.

Applications

• Video switchers and routers
• Pixel switching for Picture-In-Picture displays
• Switching in LCD and Plasma displays

Procurement Notes

Verify the specific ordering suffix REEL against the manufacturer's official documentation to confirm tape and reel packaging requirements. Ensure the component meets RoHS compliance standards relevant to the target market. Confirm that the 14-lead SOIC package dimensions align with the printed circuit board layout constraints before finalizing procurement orders.

Selection Notes

Select this component for applications requiring high bandwidth and fast settling times. Consider the power supply voltage range of ±5 V and the operating temperature range of -40°C to +85°C. Evaluate the need for the disable feature if cascading multiple multiplexers is required. Verify that the input logic levels are compatible with the system control signals.

Part Context

The AD8184 belongs to a family of high-speed video multiplexers from Analog Devices. It is pin-compatible with legacy parts such as the HA4314 and GX4314. The device utilizes a complementary bipolar process to achieve high speed with low power consumption. It is designed specifically for professional video applications requiring precise signal integrity.

Replacement Considerations

The AD8184AN serves as a direct pin-compatible replacement offering the same functionality in a 14-lead PDIP package. Designers should verify package footprint compatibility when substituting between SOIC and DIP variants. No other functional substitutes are documented in the provided source material.

FAQ

How does the AD8184 handle disabled channels?

When the ENABLE input is HIGH, all buffers are disabled, placing the output in a high impedance state. This prevents OFF channels from loading the output bus when multiple devices are connected.

What is the typical switching glitch magnitude?

The channel switching transient (glitch) is typically less than 25 mV when all inputs are grounded during switching operations.

Can the AD8184 drive a 75 Ω terminated line directly?

While it can drive lighter loads, driving a back-terminated 75 Ω line may require buffering using a high-speed op amp like the AD8009 to maintain signal integrity and unity gain.