ADG774BRQ

Analog Switches, Multiplexers, Demultiplexers Overview

The ADG774BRQ is a monolithic CMOS device comprising four 2:1 multiplexer/demultiplexers with high impedance outputs, housed in a 16-lead Shrink Small Outline Package (QSOP). It operates from a single 3 V to 5.5 V supply and features a typical on resistance of 2.2 Ω with a maximum of 89 Ω at 3 V operation. The device provides a –3 dB bandwidth of 240 MHz and supports rail-to-rail signal ranges extending to the supplies. Key dynamic characteristics include a typical turn-on time of 7 ns and turn-off time of 4 ns at 3 V. It exhibits low quiescent supply current of 1 nA typical and break-before-make switching action to prevent channel shorting.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Four independent 2:1 multiplexer/demultiplexer channels with high impedance outputs
• Rail-to-rail analog signal range compatible with single 3 V or 5 V supplies
• Break-before-make switching action prevents channel shorting during state transitions
• TTL/CMOS logic compatible control inputs for direct interfacing

Analog Switches, Multiplexers, Demultiplexers Applications

• USB 1.1 signal switching circuits
• Audio and video signal routing
• Battery-powered portable instruments
• Data acquisition systems
• Relay replacement applications

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific package variant QSOP-16 against design constraints. Confirm temperature grade B covers the required -40°C to +125°C operational range. Check datasheet revision C for updated specifications. Ensure ESD precautions are implemented during handling due to sensitivity.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when ultralow power dissipation and wide bandwidth are critical. The 2.2 Ω typical on resistance suits low insertion loss requirements. Verify that the 240 MHz bandwidth meets signal frequency needs. Consider the 16-pin QSOP footprint for board layout compatibility.

Analog Switches, Multiplexers, Demultiplexers Part Context

The ADG774BRQ belongs to the ADG774 family of wide bandwidth quad 2:1 multiplexers. It shares functional similarities with the ADG774ABRQZ but differs in performance grades and packaging. The BRQ suffix specifically denotes the Shrink Small Outline Package variant within the Analog Devices portfolio.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Public confirmed substitute part numbers include ADG774BRQZ and ADG774BRQ-REEL7. These variants maintain identical electrical characteristics and pinouts while differing primarily in lead-free compliance or reel packaging options.