AD8184ARZ

Overview

The AD8184ARZ is a high-speed 4-to-1 video multiplexer manufactured by Analog Devices Inc. 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. Key electrical parameters include 95 dB all-hostile crosstalk at 5 MHz, 115 dB OFF isolation, and a channel switching time of 10 ns. It offers differential gain error of 0.01% and phase error of 0.01° at 3.58 MHz. The component is housed in a 14-lead SOIC package and supports an operating temperature range from -40°C to +85°C.

Feature Summary

• Fully buffered inputs and outputs provide unidirectional signal paths with minimal switching glitches.
• Fast output disable feature allows multiple devices to be connected in parallel for cascading stages without loading the output bus.
• Low power consumption design enables efficient operation while maintaining high-speed performance.
• High OFF isolation and low crosstalk ensure signal integrity in professional video applications.

Applications

• Video switchers and routers
• Pixel switching for Picture-In-Picture displays
• Switching in LCD and Plasma displays
• Color document scanners using CCD arrays

Procurement Notes

Verify the specific ordering suffix ARZ corresponds to the 14-lead Narrow SOIC package variant. Confirm that the device meets RoHS compliance requirements for your assembly process. Ensure that the supply voltage rails are strictly maintained within the ±4 V to ±6 V operating range to prevent damage. Check for ESD sensitivity precautions during handling and storage.

Selection Notes

Select this component when a 4-to-1 multiplexing function with high bandwidth exceeding 700 MHz is required. Consider the AD8184ARZ if low power dissipation near 4.4 mA is critical for the system design. Evaluate the need for the fast disable feature if cascading multiple multiplexers is necessary. Verify that the 14-lead SOIC package fits the available PCB footprint constraints.

Part Context

The AD8184 belongs to the AD818x family of video multiplexers from Analog Devices. It is pin-compatible with legacy parts such as the HA4314 and GX4314. Related variants include the AD8180 (2-to-1) and AD8182 (dual 2-to-1). The device utilizes a complementary bipolar process to achieve its speed and low power characteristics.

Replacement Considerations

The AD8184AN is the DIP package equivalent. Legacy replacements include the HA4314 and GX4314, which are pin-compatible. No other direct substitutes are confirmed in the provided documentation.

FAQ

How does the AD8184 handle multiple outputs connected together?

The AD8184 includes a high-speed disable feature that puts the output into a high impedance state. This allows multiple outputs to be connected together for cascading stages while the OFF channels do not load the output bus.

What is the maximum supply voltage range for the AD8184?

The AD8184 operates on voltage supplies ranging from ±4 V to ±6 V. The absolute maximum rating for supply voltage is 12.6 V.

Is the AD8184 compatible with TTL logic levels?

Yes, the decoder logic translates TTL-compatible logic inputs (A0, A1, and ENABLE) to internal differential ECL levels for fast switching. Logic 1 is defined as 2.0 V and Logic 0 as 0.8 V.