DG309BDY-E3

Overview

The DG309BDY-E3 is a quad single-pole single-throw (SPST) normally closed analog switch manufactured by Vishay Siliconix. It operates on dual supplies ranging from ±4 V to ±22 V or a single supply of 8 V to 44 V. The device features a maximum drain-source on-resistance of 100 Ω and a maximum turn-on time of 200 ns at room temperature. It supports an analog signal range of ±15 V under dual supply conditions. Packaged in a 16-pin narrow SOIC, it functions within a temperature range of -40 °C to +85 °C.

Feature Summary

• Normally closed configuration with true bi-directional signal handling capabilities
• CMOS compatible logic interface for simplified digital control
• Epitaxial layer construction prevents latchup during operation

Applications

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

Procurement Notes

Verify the specific suffix 'E3' confirms lead-free compliance and RoHS status before procurement. Confirm the package type matches the design requirements as the DG309B series includes multiple packaging options such as DIP and TSSOP. Ensure the ordering information aligns with the required temperature range and voltage ratings for the intended application environment.

Selection Notes

Select this component when a normally closed state is required upon power-up or logic low input. Verify that the maximum on-resistance of 100 Ω meets the signal integrity requirements of the circuit. Consider the ±22 V supply rating if higher voltage signal handling is necessary compared to standard ±15 V devices.

Part Context

This part belongs to the DG309B series, which represents improved versions of the industry-standard DG309. These switches utilize a proprietary silicon gate CMOS process to achieve lower on-resistance and leakage currents compared to previous generations like the DG309A.

Replacement Considerations

DG309BDJ-E3 offers identical electrical specifications but utilizes a 16-pin Plastic DIP package instead of the SOIC format.