DG612DY

Overview

The DG612DY is a high-speed, low-glitch analog switch manufactured by Vishay Siliconix. It features four independently controlled single-pole single-throw (SPST) channels built on a proprietary D/CMOS process combining lateral DMOS FETs with CMOS control logic. The device operates with a supply voltage range of 5 V to 21 V for V+ and -10 V to 0 V for V-. Key electrical parameters include a maximum on-resistance of 45 Ω at room temperature and 60 Ω across the full industrial temperature range (-40 °C to +85 °C). Switching times are characterized by a turn-on time of up to 35 ns and a turn-off time of up to 25 ns under standard test conditions. The package is a 16-pin Narrow SOIC.

Feature Summary

• Combines n-channel DMOS switching FETs with low-power CMOS control logic for optimized performance.
• Features fast switching speeds and minimized charge injection to reduce aperture uncertainty and offset errors.
• Provides wide bandwidth and low insertion loss suitable for high-frequency signal routing.
• Includes an epitaxial layer to prevent latchup and ensure robust operation.

Applications

• Fast sample-and-hold circuits requiring minimal charge injection.
• Pixel-rate video switching for applications like picture-in-picture or title overlays.
• Synchronous demodulators and switched capacitor filters.
• DAC deglitching and disk/tape drive signal routing.
• GaAs FET drivers in phased array radar systems.

Procurement Notes

Verify the specific ordering suffix to confirm the package type and tape/reel configuration. The 'DY' designation indicates a 16-pin Narrow SOIC package. Confirm RoHS compliance status if required, as historical variants may differ. Ensure the logic level compatibility matches the system's control voltage requirements before finalizing procurement.

Selection Notes

Select the DG612DY when complementary logic control is needed relative to the DG611 family. The device responds to opposite logic levels compared to the DG611; a logic high turns the switch off, while a logic low turns it on. Verify that the analog signal range fits within the specified limits relative to the power supplies. Consider the on-resistance match and leakage current specifications for precision applications.

Part Context

The DG612 is part of the DG611/DG612/DG613 family of high-speed analog switches from Vishay Siliconix. While the DG611 and DG612 both contain four SPST switches, they differ in control logic polarity. The DG613 offers a mixed configuration of normally open and normally closed switches. This family utilizes D/CMOS technology to achieve high speed and low power consumption simultaneously.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Designers should verify pinout and logic compatibility if substituting with other members of the DG61x family or similar high-speed analog switches from other manufacturers.