DG211CYT

Analog Switches, Multiplexers, Demultiplexers Overview

The DG211CYT is a monolithic quad single-pole single-throw (SPST) CMOS analog switch manufactured by Renesas Electronics Corporation. It serves as a drop-in replacement for the DG211 and DG212 series, featuring four independent bilateral switches compatible with TTL and CMOS logic inputs. The device utilizes a high-voltage silicon-gate process with an epitaxial layer to prevent latch-up. It supports single-ended supply voltages from +5V to +44V or split supplies from ±5V to ±20V, allowing control of 40V peak-to-peak signals. Key electrical characteristics include a maximum on-resistance of 35Ω, fast switching times with a maximum turn-on time of 175ns and turn-off time of 145ns, and low power consumption under 35µW.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Monolithic CMOS construction with four independent SPST analog switches
• TTL and CMOS compatible digital input logic
• Reduced charge injection simplifies sample and hold applications
• Epitaxial layer prevents latch-up associated with older CMOS technologies

Analog Switches, Multiplexers, Demultiplexers Applications

• Sample and hold circuits
• Data acquisition systems
• Process control modules

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix 'T' indicates tape and reel packaging when sourcing. Confirm RoHS compliance status as legacy variants may differ. Ensure the operating temperature range matches system requirements, typically -40°C to +85°C for industrial grades. Cross-reference pinouts with original DG211 specifications to guarantee mechanical compatibility during board upgrades.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when replacing obsolete DG211 units without redesigning the PCB footprint. Consider the 35Ω on-resistance limit for signal integrity in precision analog paths. Verify that the 44V maximum voltage rating accommodates the highest expected signal peaks. Evaluate the 175ns switching speed against system timing constraints for multiplexing applications.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the DG411 series family, which includes DG411, DG412, and DG413 variants. While functionally similar, these siblings differ in selection logic polarity. The DG211CYT specifically mirrors the negative logic configuration of the original DG211, ensuring direct interchangeability in existing designs utilizing standard active-low control signals.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Direct drop-in replacements include DG411CZ and DG411DZ. Verify package dimensions match the target SOIC-16 footprint. Check if the application requires positive logic, in which case DG412 variants are appropriate instead.