ADG781BCPZ-REEL7

Analog Switches, Multiplexers, Demultiplexers Overview

The ADG781BCPZ-REEL7 is a quad single-pole single-throw (SPST) analog switch manufactured by Analog Devices Inc. It operates on a single supply voltage ranging from 1.8 V to 5.5 V and features a typical on-resistance of 2.5 Ω with a maximum of 4 Ω at 5 V. The device provides a –3 dB bandwidth exceeding 200 MHz, fast switching times with a maximum tON of 16 ns and tOFF of 10 ns, and low power dissipation due to CMOS construction. It is housed in a 20-lead 4 mm × 4 mm Lead Frame Chip Scale Package (LFCSP) and supports an industrial operating temperature range from –40°C to +85°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Rail-to-rail operation allows the analog signal range to extend from ground to the positive supply voltage.
• Low on-resistance flatness ensures consistent signal transmission across the entire analog input range.
• CMOS construction enables extremely low static power consumption suitable for battery-powered applications.

Analog Switches, Multiplexers, Demultiplexers Applications

• Photodetector circuits requiring programmable gain configurations
• Signal routing in data acquisition systems
• Multiplexing sensor inputs

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify that the ordering suffix matches REEL7 for tape-and-reel packaging. Confirm the B version designation indicates the specified industrial temperature range. Ensure the RoHS compliant Z suffix is present if required by assembly specifications. Cross-reference the manufacturer part number with distributor catalogs to confirm availability and authenticity before purchase.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when a compact quad SPST switch with high bandwidth is required. Compare against ADG782 or ADG783 if different logic states or break-before-make timing are needed. Verify that the 20-lead LFCSP package fits the PCB footprint constraints. Check that the supply voltage range aligns with the system's power rails.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the ADG781/ADG782/ADG783 family of quad SPST switches. The ADG781 variant specifically provides normally open switches controlled by a logic high input. It shares the same physical package and electrical characteristics as its siblings but differs in internal logic configuration.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Direct functional substitutes within the same package include the ADG782BCPZ-REEL7 and ADG783BCPZ-REEL7. Note that these variants differ in logic polarity and switching behavior rather than electrical performance metrics.

Analog Switches, Multiplexers, Demultiplexers FAQ

What is the difference between the ADG781 and ADG783?

The ADG781 consists of four independent SPST switches that turn on with a logic high input. The ADG783 includes two pairs of switches configured for break-before-make timing, which prevents channel shorting when used as multiplexers.

Does the ADG781 support dual supplies?

No, the ADG781 is designed for single-supply operation only, with a voltage range of 1.8 V to 5.5 V referenced to ground.

What is the maximum continuous current per channel?

The absolute maximum rating for continuous current through the source or drain terminals is 30 mA.