DG202BDQ-E3

Analog Switches, Multiplexers, Demultiplexers Overview

The DG202BDQ-E3 is a quad single-pole single-throw (SPST) analog switch manufactured by Vishay Siliconix. It features four independent channels in a 16-pin TSSOP package. The device supports dual supply voltages ranging from ±4.5 V to ±22 V, or a single supply of up to 25 V. Key electrical parameters include a maximum on-resistance of 85 Ω at room temperature and a maximum power dissipation of 640 mW. Switching characteristics specify a maximum turn-on time of 300 ns and a turn-off time of 200 ns. The component operates within an extended temperature range of -40 °C to +85 °C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Improved charge injection compensation design minimizes switching transients.
• Epitaxial layer construction prevents latchup for enhanced reliability.
• True bi-directional signal performance in the on condition.
• Capable of blocking signals to supply voltages in the off condition.

Analog Switches, Multiplexers, Demultiplexers Applications

• Industrial instrumentation
• Test equipment
• Communications systems
• Sample-and-hold circuits

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and compliance status. The 'E3' designation indicates lead-free terminations compliant with RoHS directives. Confirm that the TSSOP-16 package variant matches the intended PCB footprint requirements before finalizing procurement orders.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when a normally open configuration is required, as distinct from the DG201B series which offers normally closed switches. Ensure the application voltage does not exceed the ±22 V rating. Verify that the 85 Ω on-resistance meets the signal integrity requirements for the specific load conditions.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the DG201B/DG202B family of improved quad CMOS analog switches. These devices are advanced versions of the industry-standard DG201A and DG202, offering lower on-resistance, reduced leakage, higher speed, and lower power consumption through Vishay's proprietary silicon gate CMOS process.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

DG202BDQ-T1-E3: Same functional specifications but supplied in tape and reel packaging instead of tubes.

Analog Switches, Multiplexers, Demultiplexers FAQ

What is the default state of the DG202B switches?

The DG202B switches are normally open. They conduct current when the logic input is high and block current when the logic input is low.

How does the DG202B handle input signals exceeding supply rails?

Signals on source or drain terminals exceeding V+ or V- will be clamped by internal diodes. The forward diode current must be limited to the maximum current ratings to prevent damage.

What is the maximum continuous current rating for the switches?

The DG202B has an improved continuous current rating of 30 mA per channel.