DG271AK

Analog Switches, Multiplexers, Demultiplexers Overview

The DG271AK is a high-speed quad monolithic SPST CMOS analog switch manufactured by Vishay Siliconix. It features a low on-resistance of 32 ohms, fast switching times with turn-on and turn-off durations of 55 ns and 50 ns respectively, and low charge injection of 5 pC. The device operates within a supply voltage range of ±4 V to ±20 V, supporting an analog signal range up to ±15 V. It exhibits low leakage currents of 50 pA and is designed for TTL/CMOS compatibility. Packaged in a 16-pin Ceramic Dual In-Line Package (CerDIP), it supports an operating temperature range from -55°C to +125°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• High-speed switching capability with reduced switching glitches
• Low charge injection for high precision applications
• TTL and CMOS logic compatible control inputs
• Military-grade reliability using high voltage metal gate wafer fabrication process

Analog Switches, Multiplexers, Demultiplexers Applications

• Sample and hold circuits
• Digital filters
• Op amp gain switching
• Flight control systems
• Automatic test equipment

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix 'AK' corresponds to the 16-pin CerDIP package and the -55°C to +125°C temperature range as documented in the datasheet. Confirm that the component meets military specifications if required for the application, noting that this part utilizes a distinct metal gate fabrication process compared to commercial variants.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select the DG271AK when high-speed performance and low charge injection are critical requirements. Ensure the design accommodates the specified ±4 V to ±20 V dual supply range. Verify that the 16-pin CerDIP footprint aligns with the PCB layout constraints and that the thermal dissipation capabilities of the package meet the system's power budget under maximum load conditions.

Analog Switches, Multiplexers, Demultiplexers Part Context

The DG271AK belongs to the DG271 series of high-speed analog switches. It shares functional performance characteristics with the commercial DG271B variant but differs in manufacturing process and packaging. While the DG271B utilizes a silicon gate process, the DG271AK employs a high voltage metal gate wafer fabrication process suitable for rugged environments.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The DG271B is a commercially available alternative offering similar electrical performance. For military specifications, the DG271AZ/883 serves as a ceramic LCC-20 package option within the same family.