ADG781BCPZ-REEL

Analog Switches, Multiplexers, Demultiplexers Overview

The ADG781BCPZ-REEL7 is a monolithic CMOS device containing four independently selectable SPST analog switches in a 20-lead 4 mm × 4 mm LFCSP package. It operates on a single supply voltage ranging from 1.8 V to 5.5 V with rail-to-rail signal handling. The B version supports an industrial temperature range of -40°C to +85°C. Key electrical parameters include a typical on-resistance of 2.5 Ω (max 4.5 Ω at 5 V), a –3 dB bandwidth exceeding 200 MHz, and fast switching times with tON max of 16 ns and tOFF max of 10 ns. Power consumption is typically less than 0.01 μW.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Low on-resistance and flatness for high-fidelity signal transmission.
• Rail-to-rail operation compatible with wide dynamic signal ranges.
• Ultra-low power dissipation suitable for battery-powered applications.
• TTL/CMOS logic compatibility for direct interface with digital controllers.

Analog Switches, Multiplexers, Demultiplexers Applications

• Battery powered systems
• Communication systems
• Sample hold systems
• Audio signal routing
• Video switching

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm packaging details. The REEL7 designation indicates tape and reel packaging intended for automated surface-mount assembly processes. Ensure the component meets RoHS compliance requirements as specified in the datasheet before finalizing procurement specifications.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when low on-resistance and high bandwidth are required in a compact footprint. The ADG781 provides independent control for each channel, making it suitable for multiplexing or cross-point switching matrices. Verify that the system's logic levels align with the TTL/CMOS input requirements and that the thermal impedance allows for adequate heat dissipation within the operating temperature range.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the ADG781/ADG782/ADG783 family of quad SPST switches. While functionally similar, the ADG782 differs in switch configuration, and the ADG783 includes break-before-make timing for multiplexer applications. This specific model represents the standard SPST variant designed for general-purpose signal routing without the sequential switching characteristics of the ADG783.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Functionally equivalent devices in 16-lead TSSOP and SOIC packages include the ADG711, ADG712, and ADG713. These alternatives offer similar performance metrics but require different PCB footprints and pin configurations. Verify pinout compatibility and package dimensions before substituting these parts in existing designs.

Analog Switches, Multiplexers, Demultiplexers FAQ

What is the maximum analog signal range supported by the ADG781?

The analog signal range extends from 0 V to VDD, allowing for rail-to-rail operation across the entire supply voltage spectrum.

Does the ADG781 support break-before-make switching?

No, the ADG781 does not feature break-before-make timing. This functionality is exclusive to the ADG783 model within the same family.

How is the exposed pad connected in the LFCSP package?

The exposed pad is tied to the substrate and must be connected to the GND reference for proper operation and thermal management.