ADG212AKN

Analog Switches, Multiplexers, Demultiplexers Overview

The ADG212AKN is a monolithic CMOS device comprising four independently selectable single-pole single-throw (SPST) switches. Fabricated on an enhanced LC2MOS process, it supports a maximum supply rating of 44 V and an analog signal range of ±15 V. The device features a maximum on-resistance of 115 Ω and typical leakage currents of 0.5 nA. It operates with TTL/CMOS compatible digital inputs and supports both single and dual supply configurations within the specified temperature range.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Enhanced LC2MOS process provides high breakdown voltage and extended analog signal handling capability up to ±15 V.
• Inherent break-before-make switching action minimizes transients and leakage errors in multiplexer applications.
• Low charge injection design ensures minimal signal distortion during digital input transitions.
• TTL and CMOS compatible logic allows direct interfacing with standard digital control circuits.

Analog Switches, Multiplexers, Demultiplexers Applications

• High precision data acquisition systems requiring low leakage and high isolation.
• Multiplexer configurations where break-before-make timing prevents output contention.
• Signal routing in instrumentation amplifiers and test equipment.
• Sample and hold circuits demanding low charge injection for accuracy.

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify that the ordering suffix 'KN' corresponds specifically to the 16-lead Plastic Dual In-Line Package (PDIP). Confirm RoHS compliance status if required by assembly specifications, noting that 'Z' suffixes typically denote compliant parts while non-Z variants may differ. Ensure the selected package option matches the PCB footprint requirements for narrow body DIP construction.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select the ADG212AKN when inverted digital control logic is required relative to the ADG211A variant. Both devices share identical electrical characteristics and pinouts but differ in truth table polarity. Choose this component for applications needing ±15 V signal ranges with low on-resistance. Verify that the 16-lead PDIP package fits the available board space and thermal constraints.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the ADG211A/ADG212A family of LC2MOS Quad SPST Switches manufactured by Analog Devices. The series is designed as a drop-in replacement for older DG211/DG212 technologies, offering improved signal handling and lower power consumption. The family includes various package options including SOIC and PLCC, catering to different mounting and density requirements.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The ADG211AKN serves as the logical counterpart within the same family, differing only in the polarity of the digital control logic. Designers should verify truth table requirements before substitution. Other legacy replacements like the DG411 offer faster switching but require verification of on-resistance and voltage compatibility against the LC2MOS specifications.

Analog Switches, Multiplexers, Demultiplexers FAQ

What is the primary difference between the ADG211A and ADG212A?

The ADG211A and ADG212A are electrically identical except for their digital control logic. The ADG212A uses inverted logic compared to the ADG211A, meaning a logic low turns the switch on for the ADG212A, whereas a logic high turns it on for the ADG211A.

Can the ADG212AKN operate with a single supply?

Yes, the device supports single supply operation. For unipolar analog signals ranging from 0 V to 15 V, the switches can be powered by a single +15 V supply with VSS connected to ground.

What does break-before-make switching imply for this device?

Break-before-make switching ensures that one channel opens completely before another closes when driven simultaneously. This feature is critical in multiplexer applications to prevent multiple outputs from being active at the same time, thereby minimizing leakage errors and signal contention.