Vishay Siliconix DG442DJ-E3

Overview

DG442DJ-E3 from Vishay Siliconix is a quad SPST normally open (NO) CMOS analog switch IC designed for precision signal routing in dual-supply (±15 V) or single-supply (up to 12 V) systems. It delivers 50 Ω typical on-resistance, 150 ns typical turn-on time, and –1 pC charge injection-enabling low-distortion audio switching and accurate sample-and-hold operation in data acquisition systems.

For engineers reviewing the DG442DJ-E3 datasheet, DG442DJ-E3 pinout, DG442DJ-E3 application, or DG442DJ-E3 equivalent, key selection criteria include its NO configuration, DIP-16 package compatibility with legacy DG202 sockets, leakage performance below 0.5 nA at ±15.5 V, and guaranteed operation from –40 °C to +85 °C.

Technical Context

The DG442DJ-E3 implements four independent bidirectional analog switches fabricated using Vishay's high-voltage silicon-gate process, featuring epitaxial latchup protection. Each channel supports full-rail analog signal switching (±15 V dual supply or 0–12 V single supply) with symmetrical conduction and blocking behavior.

Its TTL/CMOS-compatible digital inputs accept logic thresholds of ≤0.8 V (low) and ≥2.4 V (high), enabling direct interface with microcontrollers and logic families without level-shifting. Internal clamping diodes protect against overvoltage transients on S/D/IN pins up to (V−) − 2 V or (V+) + 2 V.

Key Specifications

Pinout & Package

Package: 16-pin plastic DIP (JEDEC MS-012), 0.300″ wide body, 0.100″ lead pitch. Compatible with through-hole assembly and socket-based prototyping.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DG442DJ-E3, MAX4617CPD+ offers lower conduction loss but sacrifices legacy socket compatibility and temperature range, while ADG442BNZ provides faster switching and marginally better R_DS(on) but lacks –40 °C to +85 °C qualification and DIP packaging-making DG442DJ-E3 optimal for industrial retrofits requiring drop-in mechanical and thermal equivalence.

Availability

DG442DJ-E3 is available at Aetrix Electronics and suitable for audio switching, data acquisition, and sample-and-hold circuits requiring stable component supply across extended temperature ranges and legacy DIP-16 footprints.

Supply support for DG442DJ-E3 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 analog switching, power management, and sensing solutions.

The DG442DJ-E3 belongs to Vishay's high-voltage analog switch product line, engineered for precision signal integrity in instrumentation, medical diagnostics, and automated test systems where low distortion, low leakage, and robust ESD tolerance are mandatory.

FAQ

What is the maximum analog signal voltage range supported by the DG442DJ-E3?

The DG442DJ-E3 supports analog signals from V− to V+ across all four channels. With ±15 V dual supplies, it handles ±15 V full-rail signals; with 12 V single supply (V− = GND), it supports 0–12 V. Internal clamping diodes limit absolute pin voltages to (V−) − 2 V or (V+) + 2 V, protecting against transient overvoltage.

Can the DG442DJ-E3 operate from a single 5 V supply?

Yes, the DG442DJ-E3 supports single-supply operation down to 5 V. At 5 V, R_DS(on) increases to ~200 Ω (max), and switching times lengthen, but logic thresholds remain compatible with standard 5 V TTL/CMOS. For best performance, use ≥10 V single supply or ±12 V dual supply.

Is the DG442DJ-E3 pin-compatible with the DG202 series?

Yes-the DG442DJ-E3 is a direct mechanical and functional upgrade for DG202 sockets. Its DIP-16 footprint, pinout, and NO functionality match DG202, while improving R_DS(on) (50 Ω vs. 90 Ω), speed (150 ns vs. 350 ns), and leakage (<0.5 nA vs. 5 nA), enabling plug-in performance enhancement without PCB changes.

How does charge injection affect sample-and-hold accuracy in circuits using the DG442DJ-E3?

At –1 pC typical, charge injection from the DG442DJ-E3 introduces <1 mV pedestal error when sampling into a 1 nF hold capacitor. This enables 12-bit DC accuracy in precision S/H circuits without active correction. The error remains stable over temperature and supply voltage, as confirmed in Vishay's Fig. 5 and Table 3.

Does the DG442DJ-E3 require external pull-up or pull-down resistors on its digital inputs?

No-digital inputs are TTL/CMOS-compatible with defined thresholds (≤0.8 V for logic 0, ≥2.4 V for logic 1) and exhibit <500 nA input current across temperature. Direct connection to microcontroller GPIO or FPGA I/O is sufficient; external biasing is unnecessary unless driving from open-collector sources.