Vishay Siliconix DG611DY

Overview

DG611DY from Vishay Siliconix is a high-speed, low-glitch quad SPST analog switch IC designed for precision signal routing in fast-switching systems. It delivers 12 ns turn-on time, 18 Ω on-resistance, ±2 pC charge injection, 500 MHz bandwidth, and operates from ±5 V to ±10.5 V dual supplies with 5 V CMOS-compatible logic control.

For engineers reviewing the DG611DY datasheet, DG611DY pinout, DG611DY application, or DG611DY equivalent, key selection criteria include low glitch energy for sample-and-hold integrity, minimal charge injection for DAC deglitching accuracy, wide analog bandwidth for pixel-rate video switching, and guaranteed R_DS(on) matching across channels.

Technical Context

The DG611DY uses Vishay's proprietary D/CMOS process integrating n-channel DMOS switching FETs with low-power CMOS control logic and drivers, enabling simultaneous high speed and low power consumption. Its epitaxial layer prevents latch-up, and internal clamping diodes protect against overvoltage on S/D/IN pins beyond supply rails.

It features four independent SPST switches with complementary logic response (DG611 turns ON at logic low), supports analog signals from V− to (V+) − 5 V, and maintains stable R_DS(on) across temperature and voltage-critical for switched-capacitor filter linearity and synchronous demodulator fidelity.

Key Specifications

Pinout & Package

DG611DY is packaged in a 16-pin narrow SOIC (JEDEC MS-012) with 1.27 mm pitch, 10.0 mm × 4.0 mm body, and 1.75 mm max height-compatible with standard SOIC-16 PCB footprints and reflow profiles.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar analog switch applications.

Compared with MAX4617ESE+ and ADG1419BRUZ, the DG611DY uniquely combines bipolar supply operation, 5 V CMOS logic compatibility, sub-15 ns switching, and <20 Ω R_DS(on) in a single SOIC package-making it optimal for legacy and mixed-rail systems where layout simplicity and proven reliability are prioritized.

Availability

DG611DY is available at Aetrix Electronics and suitable for fast sample-and-hold circuits, pixel-rate video switching, and DAC deglitching requiring stable component supply across industrial, broadcast, and test equipment lifecycles.

Supply support for DG611DY includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Vishay Siliconix is a global leader in discrete semiconductors and passive components, specializing in high-reliability, high-performance devices for demanding analog and power applications.

The DG611DY belongs to Vishay's D/CMOS analog switch family, engineered specifically for high-speed signal routing in test equipment, video infrastructure, and precision instrumentation where low glitch, low charge injection, and rail-to-rail analog capability are essential.

FAQ

What is the maximum analog signal voltage range supported by the DG611DY?

The DG611DY supports an analog signal range from V− to (V+) − 5 V. With recommended operating conditions of V+ = 15 V and V− = −3 V, this yields a usable analog range of −3 V to +10 V. The device clamps signals exceeding V+ or V− via internal diodes, but continuous operation outside this range risks damage per absolute maximum ratings.

Does the DG611DY require separate logic and analog supplies?

Yes-the DG611DY has dedicated VL (logic supply) and V+/V− (analog supply) pins. VL accepts 4 V to V+ and sets VIH/VIL thresholds independently, allowing 5 V logic control even when V+ is 12 V or 15 V. This separation prevents digital noise coupling into analog paths and ensures robust switching across mixed-supply systems.

Can the DG611DY be used with single-supply operation?

Yes-the DG611DY supports single-supply operation with V− tied to GND and V+ set to 5 V to 21 V. In this configuration, the analog signal range becomes 0 V to (V+) − 5 V (e.g., 0 V to +10 V at V+ = 15 V). All specifications-including t_ON, R_DS(on), and charge injection-remain valid per the datasheet's unipolar supply characterization tables.

What is the thermal derating behavior of the DG611DY in SOIC package?

The DG611DY in narrow SOIC package has a power dissipation rating of 600 mW at ≤75 °C ambient. Above 75 °C, power must be linearly derated at 7.6 mW/°C. At 105 °C ambient, maximum allowable power drops to 372 mW. This derating ensures junction temperature remains within safe limits under sustained load conditions.

How does the DG611DY differ from the DG612DY and DG613DY in pin compatibility?

The DG611DY and DG612DY share identical pinouts and package dimensions but invert logic polarity (DG611 ON at logic low; DG612 ON at logic high). The DG613DY uses the same SOIC-16 package but has different pin assignments-specifically NC (no-connect) pins replacing some IN/S/D terminals-to support configurable SPST/SPDT/DPDT topologies. Thus, DG611DY and DG612DY are pin-compatible; DG613DY is not.