Vishay Siliconix DG407DJ-E3

Overview

DG407DJ-E3 from Vishay Siliconix is a dual 8-channel differential analog multiplexer IC designed to route one of eight differential input pairs to a common differential output in precision signal acquisition systems. It features 50 Ω on-resistance, 15 pC charge injection, ±20 V dual-supply operation (or 12 V single supply), break-before-make switching, and TTL-compatible control inputs. It is used in medical instrumentation, ATE systems, and low-level differential sensor multiplexing.

For engineers reviewing the DG407DJ-E3 datasheet, DG407DJ-E3 pinout, DG407DJ-E3 application, or DG407DJ-E3 equivalent, key selection criteria include differential channel count, R_DS(on) matching across pairs, off-isolation at 100 kHz, enable-controlled stacking capability, and compatibility with ±5 V to ±20 V supplies in high-reliability embedded measurement systems.

Technical Context

The DG407DJ-E3 implements a CMOS decoder-driven differential switch matrix with independent A0–A2 address lines and an active-low EN terminal. Its internal architecture enforces strict break-before-make timing (≥10 ns min.) to prevent momentary shorting between differential channels during switching transitions.

All 16 signal terminals (S1a–S8a, S1b–S8b) are fully bidirectional, support rail-to-rail analog signals up to ±20 V, and exhibit matched on-resistance (ΔR_DS(on) ≤ 5%) and low off-leakage (≤5 nA over full temperature range), enabling accurate differential voltage sampling without gain/offset drift.

Key Specifications

Pinout & Package

Package: 28-pin plastic DIP (Dual-In-Line), JEDEC MS-011AC, body width 0.600 inch (15.24 mm), lead pitch 0.100 inch (2.54 mm).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX306CPI+ and ADG508FKNZ, the DG407DJ-E3 uniquely delivers true differential channel selection with matched on-resistance, integrated enable for stacked configurations, and lower charge injection-making it optimal for high-fidelity, multi-sensor differential data acquisition where signal integrity and layout simplicity are critical.

Availability

DG407DJ-E3 is available at Aetrix Electronics and suitable for medical instrumentation, automated test equipment, and battery-powered data loggers requiring stable component supply, long-term lifecycle support, and RoHS-compliant lead-free packaging.

Supply support for DG407DJ-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 designs high-performance analog semiconductors using proprietary silicon-gate CMOS processes, emphasizing precision, ruggedness, and reliability for industrial and medical markets.

The DG407DJ-E3 belongs to Vishay's high-precision analog multiplexer product line, engineered specifically for differential signal routing in low-noise, high-accuracy measurement systems where channel matching and leakage control are critical.

FAQ

What is the maximum supply voltage rating for DG407DJ-E3?

The DG407DJ-E3 has an absolute maximum supply rating of ±20 V dual supply or 44 V total (V+ to V−), enabling operation across industrial, medical, and avionics power rails. This rating is guaranteed by design and validated per Vishay's 44 V silicon-gate CMOS process. Exceeding these limits risks permanent damage, per Absolute Maximum Ratings table in Document 70061.

Does DG407DJ-E3 support single-supply operation?

Yes, DG407DJ-E3 supports single-supply operation at 12 V (V+ = 12 V, V− = 0 V), with analog signal range from 0 V to 12 V. In this mode, R_DS(on) increases to 120 Ω max., and leakage remains ≤5 nA. The device retains TTL-compatible logic thresholds and enable functionality, making it suitable for portable and cost-sensitive designs without dual-rail supplies.

How does the enable (EN) pin function on DG407DJ-E3?

The EN pin on DG407DJ-E3 is active-low: when pulled low, all internal switches open regardless of address inputs, forcing zero signal path conduction. This allows safe stacking of multiple DG407DJ-E3 devices on shared Da/Db lines. When EN is high, normal address decoding resumes. No external pull-up is required; internal logic ensures defined state at power-up.

What is the purpose of the break-before-make feature in DG407DJ-E3?

The break-before-make feature in DG407DJ-E3 guarantees a minimum 10 ns interval (at room temperature) between opening one differential channel and closing the next. This prevents momentary shorting of differential inputs during address transitions-critical for avoiding signal corruption, latch-up, or damage when multiplexing high-impedance or actively driven sources like op-amp outputs.

Is DG407DJ-E3 RoHS-compliant and lead-free?

Yes, DG407DJ-E3 is RoHS-compliant and lead-free, as indicated by the "-E3" suffix per Vishay's ordering nomenclature. It meets EU Directive 2011/65/EU and is categorized under Vishay's material compliance program (see doc?99912). The device uses matte tin lead finish and is compatible with standard Pb-free reflow profiles per J-STD-020.