DG201AAK

Analog Switches, Multiplexers, Demultiplexers Overview

The DG201AAK is a monolithic quad SPST CMOS analog switch manufactured by Vishay Siliconix. It operates within a supply voltage range of ±8 V to ±15 V, supporting an analog signal range of ±15 V and a maximum absolute supply rating of 44 V. The device features a typical drain-source on-resistance (rDS(on)) of 115 Ω at room temperature, rising to a maximum of 250 Ω across the full operating temperature range. It exhibits low off-leakage current (ID(off) max 100 nA) and low charge injection (typical 20 pC). Switching times are characterized by a maximum turn-on time of 600 ns and turn-off time of 450 ns. The component is housed in a 16-pin ceramic dual-in-line package (CerDIP) and supports an extended industrial temperature range from -55 °C to +125 °C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• High-voltage metal gate CMOS process enabling wide input signal ranges up to ±15 V with robust 44-V absolute maximum supply ratings.
• Low distortion switching characteristics allowing direct driving from comparators or op amps without limiting resistors.
• TTL and CMOS logic compatibility for straightforward digital control integration.

Analog Switches, Multiplexers, Demultiplexers Applications

• Disk drives
• Radar systems
• Communications systems
• Sample-and-hold circuits

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify procurement channels for hermetic packaging specifications, as the DG201AAK is designated for military-grade applications. Confirm that the specific ordering suffix matches the required CerDIP variant. Ensure compliance with relevant military standards if applicable to the intended deployment environment.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select the DG201AAK when high-voltage analog switching with low leakage is required in harsh environments. For non-hermetic plastic package requirements, utilize the DG201B/202B series as pin-for-pin replacements. Verify that the application does not exceed the continuous source/drain current limits of 20 mA.

Analog Switches, Multiplexers, Demultiplexers Part Context

The DG201AAK belongs to the DG201A_MIL/DG202_MIL family of monolithic quad SPST analog switches. These devices are differentiated by their switch action logic. The DG201A_MIL provides active-low switching functionality, whereas the DG202_MIL offers active-high operation. Both share identical electrical performance metrics and physical package constraints.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

For non-hermetic applications, use DG201B or DG202B as pin-for-pin replacements. Note that the DG201B corresponds to the active-low logic of the DG201A_MIL, while the DG202B corresponds to the active-high logic of the DG202_MIL.

Analog Switches, Multiplexers, Demultiplexers FAQ

What is the difference between the DG201A_MIL and DG202_MIL?

The primary difference lies in the logic function. The DG201A_MIL is an active-low switch (Logic 0 turns ON), while the DG202_MIL is an active-high switch (Logic 1 turns ON).

Can the DG201AAK be driven directly by TTL or CMOS logic?

Yes, the device is explicitly designed to be TTL and CMOS compatible, allowing direct interfacing without additional level shifting components.

What is the recommended minimum supply voltage for operation?

Operation below ±8 V is not recommended. The standard operating range is typically ±15 V, though it can function down to ±8 V.