ADG774ABRQ

Analog Switches, Multiplexers, Demultiplexers Overview

The ADG774ABRQZ is a low voltage, high-speed quad 2:1 multiplexer switch manufactured by Analog Devices Inc. It features a bandwidth exceeding 400 MHz and operates on a single 3 V or 5 V supply. The device offers a typical on resistance of 2.2 Ω with a maximum of 4 Ω at 25°C. Switching times are characterized by a typical turn-on time of 6 ns and turn-off time of 3 ns. It includes an enable pin for power-down control, drawing a maximum supply current of 1 μA. The component is housed in a 16-lead QSOP package and supports an industrial temperature range from -40°C to +85°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• High bandwidth exceeding 400 MHz for signal integrity
• Low insertion loss with typical on resistance of 2.2 Ω
• Ultralow power dissipation suitable for battery applications
• Break-before-make switching prevents channel shorting

Analog Switches, Multiplexers, Demultiplexers Applications

• Full duplex transceivers
• Loop back circuits
• Line termination
• Line clamp protection

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific ordering suffix to confirm packaging type, such as tube or reel, and ensure RoHS compliance status matches project requirements. Confirm that the lead-free designation aligns with assembly specifications. Cross-reference the manufacturer part number with distributor catalogs to validate availability and authenticity before procurement.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when high bandwidth and low distortion are critical for analog signal routing. Ensure the operating voltage falls within the 3 V to 5 V range. Consider the 16-lead QSOP package dimensions for PCB layout constraints. Verify that the required switching speed and leakage current specifications meet the system design limits.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the ADG774A series of low voltage multiplexer switches. It shares functional similarities with other members like the ADG774BRQZ but may differ in specific electrical parameters or packaging options. The series is designed for applications requiring fast switching and low power consumption in compact form factors.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Direct substitutes include ADG774ABRQZ-REEL7 and ADG774ABRQ-REEL7. These variants share the same core functionality and pinout but may differ in packaging format, such as reel versus tube. Verify thermal and mechanical compatibility before substitution.

Analog Switches, Multiplexers, Demultiplexers FAQ

What is the function of the EN pin?

The EN pin is a logic control input that disables all switches when set high, placing the outputs in a high-impedance state.

How does break-before-make switching benefit the circuit?

It prevents channel shorting when the switches are configured as a multiplexer by ensuring one channel disconnects before the next connects.

What is the typical off isolation performance?

The off isolation is typically -65 dB at 10 MHz, minimizing unwanted signal coupling through an off switch.