ADG774ABRQZ

Analog Switches, Multiplexers, Demultiplexers Overview

The ADG774ABRQZ is a low voltage, quad 2:1 multiplexer switch featuring a bandwidth exceeding 400 MHz and a switching time of 3 ns. It operates on a single 3 V or 5 V supply with ultralow power dissipation of 1 μA maximum. The device offers low insertion loss with an on-resistance of 2.2 Ω typical and flatness of 0.3 Ω typical. It includes break-before-make switching to prevent channel shorting and provides off-isolation of −65 dB and crosstalk of −70 dB at 10 MHz. The component is housed in a 16-lead QSOP package.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Break-before-make switching prevents channel shorting when configured as a multiplexer.
• Ultralow power dissipation ensures minimal current draw during operation.
• Low leakage currents are maintained across the operating temperature range.
• High bandwidth supports signal integrity for high-frequency applications.

Analog Switches, Multiplexers, Demultiplexers Applications

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

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific ordering suffix to confirm the packaging format, such as tube or reel, as indicated in the manufacturer's ordering guide. Ensure the RoHS compliant status matches project requirements. Confirm the lead-free designation if applicable. Cross-reference the datasheet revision to ensure all specifications align with current manufacturing standards before finalizing procurement orders.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component for applications requiring high-speed signal routing with minimal distortion. The 400 MHz bandwidth and 3 ns switching time make it suitable for demanding data acquisition systems. Verify that the analog signal range fits within the specified limits for the chosen supply voltage. Consider the thermal impedance and package type when designing the PCB layout for adequate heat dissipation.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the ADG774A family of low voltage, high-speed analog switches. The 'B' variant specifies the industrial temperature range of -40°C to +85°C. The 'QZ' suffix indicates a RoHS-compliant version packaged in a 16-lead Shrink Small Outline Package (QSOP). It serves as a compact solution for multiplexing multiple signals into a single path.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Direct substitutes include other parts from the ADG774 family, such as the ADG774BRQ. Verify pin compatibility and electrical specifications like on-resistance and bandwidth when considering alternative packages or variants within the same product line.

Analog Switches, Multiplexers, Demultiplexers FAQ

What is the function of the EN pin?

The EN pin is a logic control input. When driven high, it disables all switches, placing the outputs in a high-impedance state.

How does the device prevent channel shorting?

The ADG774ABRQZ utilizes a break-before-make switching mechanism. This ensures that one channel disconnects before the next connects, preventing simultaneous conduction and potential short circuits.

What is the typical charge injection value?

The typical charge injection is 6 pC when powered by a 5 V supply and 4 pC when powered by a 3 V supply, measured with a 1 nF load capacitance.