ADG212AKR

Analog Switches, Multiplexers, Demultiplexers Overview

The ADG212AKR 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 logic inputs and supports both single and dual supply configurations within the specified temperature range.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Enhanced LC2MOS process provides increased signal handling capability up to ±15 V.
• Inherent break-before-make switching action suitable for multiplexer applications.
• Low charge injection minimizes transients during digital input switching.
• TTL and CMOS compatible digital control logic.

Analog Switches, Multiplexers, Demultiplexers Applications

• Multiplexer systems requiring break-before-make timing.
• High precision circuits utilizing low leakage characteristics.
• Data acquisition systems operating with unipolar or bipolar signals.
• Sample and hold amplifier configurations.

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific package option against the ordering guide, as the ADG212AKR designation corresponds to the 16-lead SOIC_N variant. Confirm RoHS compliance status if required by the assembly process. Ensure the logic control inputs match the system voltage levels, as the device requires a separate logic supply rail distinct from the analog power rails.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select the ADG212AKR when inverted logic control is required relative to the ADG211A series. The device is appropriate for applications demanding high breakdown voltage and extended analog signal ranges. Consider the thermal dissipation limits and derating requirements when designing for the full operating temperature range. Verify pin compatibility with legacy DG211/DG212 designs if migrating existing hardware.

Analog Switches, Multiplexers, Demultiplexers Part Context

This component belongs to the ADG211A/ADG212A family of LC2MOS Quad SPST Switches manufactured by Analog Devices Inc. The family shares identical electrical specifications and pinouts, differing only in the polarity of the digital control logic. The ADG212A variant utilizes positive logic, where a logic high turns the switch on, contrasting with the negative logic of the ADG211A.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The ADG211AKR is a direct pin-compatible substitute within the same family, distinguished solely by its inverted digital control logic. Legacy DG211 devices are also pin-compatible but may exhibit different electrical performance characteristics regarding on-resistance and switching speeds.

Analog Switches, Multiplexers, Demultiplexers FAQ

How does the ADG212A differ from the ADG211A?

The ADG212A and ADG211A share identical electrical specifications and pin configurations. They differ only in their digital control logic; the ADG212A uses positive logic (Logic 1 turns the switch ON), while the ADG211A uses negative logic (Logic 0 turns the switch ON).

Can this device operate with a single supply?

Yes, the switches can operate from a single supply voltage ranging from +10 V to +15 V for unipolar analog signals (0 V to 15 V). Dual supply operation is also supported within the ±15 V range.

What is the purpose of the break-before-make feature?

The inherent break-before-make switching action prevents short circuits when multiple outputs are tied together in multiplexer applications. This ensures that one channel opens before another closes, minimizing leakage errors and signal interference.