ADG781BCP-REEL7

Analog Switches, Multiplexers, Demultiplexers Overview

The ADG781BCP-REEL7 is a monolithic CMOS device containing four independently selectable SPST 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 component features a typical on-resistance of 2.5 Ω and a maximum of 4.5 Ω at 5 V, ensuring low insertion loss. It provides 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 minimal, with typical IDD of 0.001 μA. Leakage currents are typically ±0.01 nA. The device supports TTL/CMOS logic inputs and operates within an industrial temperature range of –40°C to +85°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Four independent SPST analog switches integrated into a compact chip-scale package.
• Low on-resistance with high flatness for consistent signal transmission across the voltage range.
• High bandwidth and fast switching speeds suitable for dynamic signal routing applications.
• Ultra-low power dissipation and negligible leakage currents ideal for battery-powered systems.

Analog Switches, Multiplexers, Demultiplexers Applications

• Battery powered portable systems requiring low quiescent current.
• Communication systems for signal path management.
• Sample and hold circuits in data acquisition chains.
• Audio and video signal routing matrices.
• Replacement for mechanical reed relays in compact designs.

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific ordering suffix matches the required packaging format. Confirm that the B version temperature rating aligns with the operational environment requirements. Ensure ESD precautions are observed during handling due to the sensitivity of the CMOS structure. Cross-reference the pin configuration with the target PCB footprint to avoid alignment errors.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when four independent single-pole single-throw switches are required in a minimal footprint. Consider the ADG782 or ADG783 if normally closed or multiplexer functionality is needed instead. Evaluate the 2.5 Ω typical on-resistance against the load requirements to ensure acceptable voltage drop. Verify that the 1.8 V minimum supply voltage meets the system's logic level constraints.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the ADG781/ADG782/ADG783 family of low-voltage analog switches. It shares the same physical package and core switching technology as its counterparts but differs in internal switch states. The ADG781 specifically provides four normally open switches, distinguishing it from the NC variants in the series.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Functionally equivalent devices include the ADG711, ADG712, and ADG713 which offer similar specifications in larger TSSOP and SOIC packages. External substitutes such as the MAX4601 or MAX4645 provide comparable performance but may require interface adjustments.