Vishay Siliconix DG612DY

Overview

DG612DY from Vishay Siliconix is a high-speed, low-glitch quad SPST analog switch optimized for fast sample-and-hold and pixel-rate video switching. It features 12 ns turn-on time, 18 Ω on-resistance, ±2 pC charge injection, 500 MHz bandwidth, and dual-supply operation (V+ = 5–21 V, V− = −10 to 0 V).

For engineers reviewing the DG612DY datasheet, DG612DY pinout, DG612DY application, or DG612DY equivalent, this device is selected for precision analog signal routing where low glitch energy, minimal charge injection, and bidirectional conduction with rail-to-rail analog range are critical in high-frequency data acquisition and video systems.

Technical Context

The DG612DY uses Vishay's proprietary D/CMOS process, integrating n-channel DMOS switching FETs with low-power CMOS control logic and drivers. Its architecture minimizes latchup risk via an epitaxial layer and supports single- or dual-supply operation with logic-compatible inputs (VIH ≥ 4 V, VIL ≤ 1 V).

Each of its four independent SPST switches conducts equally well in both directions when on and blocks up to 16 V_p-p when off. Capacitances are minimized to ensure fast switching and low-glitch energy, with guaranteed 500 MHz small-signal bandwidth under 50 Ω load conditions.

Key Specifications

Pinout & Package

Package: 16-pin narrow SOIC (JEDEC MS-012), body dimensions 9.9 mm × 3.9 mm × 1.5 mm, lead pitch 1.27 mm.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX4618ESE+ and ADG1412BRUZ, the DG612DY uniquely combines negative supply capability, 12 ns speed, and ±2 pC charge injection-making it irreplaceable in fast bipolar sample-and-hold and video overlay designs where rail-to-rail analog swing and minimal glitch energy are non-negotiable.

Availability

DG612DY is available at Aetrix Electronics and suitable for fast sample-and-hold circuits, pixel-rate video switching, and GaAs FET driver applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for DG612DY 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 semiconductor manufacturer specializing in discrete components and analog ICs, with expertise in power management, signal conditioning, and high-reliability switching solutions.

The DG612DY belongs to Vishay's high-speed analog switch product line, engineered specifically for applications demanding minimal charge injection, fast switching, and robust bipolar signal handling in test equipment, video infrastructure, and RF subsystems.

FAQ

What is the maximum analog signal voltage range supported by the DG612DY?

The DG612DY supports an analog signal range from V− to (V+ − 5 V). With recommended operating conditions of V+ = 5–21 V and V− = −10 to 0 V, the usable analog span is up to 16 V_p-p. For example, at V+ = 15 V and V− = −3 V, the DG612DY handles signals from −3 V to +10 V - critical for bipolar instrumentation and video signal routing. This range is confirmed in the "Recommended Operating Range" table of the DG612DY datasheet.

Does the DG612DY require separate logic and analog supplies?

Yes, the DG612DY uses independent VL (logic supply) and V+/V− (analog supplies). VL must be between 4 V and V+, allowing clean separation of digital switching noise from sensitive analog paths. This architecture prevents logic transients from modulating analog performance - a key advantage over single-supply switches. The DG612DY datasheet specifies VL = 4 to V+ and confirms isolation between logic and analog domains via dedicated pins (Pin 16 = VL, Pins 9/10 = V−/V+).

How does the DG612DY differ from the DG611DY in functionality?

The DG612DY and DG611DY are pin-compatible quad SPST switches differing only in logic polarity: DG612DY turns switches ON with logic HIGH (INx = ≥4 V), while DG611DY activates on logic LOW (INx = ≤1 V). Both share identical analog specs - 12 ns t_ON, 18 Ω R_DS(on), ±2 pC charge injection, and 500 MHz bandwidth. The choice depends solely on system-level control logic architecture, not performance trade-offs.

Can the DG612DY operate from a single 5 V supply?

Yes, the DG612DY supports unipolar operation with V+ = 5 V, V− = 0 V (GND), and VL = 5 V. In this configuration, the analog signal range is 0 V to 0 V (since V+ − 5 V = 0 V), limiting use to ground-referenced signals. For full-range operation, a negative rail (e.g., V− = −3 V) is required to achieve 0–12 V swing. The DG612DY datasheet explicitly lists "Single supply operation" as a feature and provides unipolar specifications in Table "SPECIFICATIONS FOR UNIPOLAR SUPPLIES".

What package type is used for the DG612DY part number?

The DG612DY is supplied in a 16-pin narrow SOIC package (JEDEC MS-012), measuring 9.9 mm × 3.9 mm × 1.5 mm with 1.27 mm lead pitch. This is distinct from the DG612DJ (16-pin plastic DIP) and DG612DL (20-pin LCC). The "Y" suffix in DG612DY denotes SOIC packaging, confirmed in the "ORDERING INFORMATION" section of the DG612DY datasheet and Vishay's package drawings (Doc #71261).