Analog Devices Inc./Maxim Integrated DG507AEWI+

Overview

DG507AEWI+ from Maxim Integrated is a monolithic CMOS differential 8-channel (2-of-16) analog multiplexer with break-before-make switching, ±4.5V to ±18V dual-supply operation, 270Ω typical on-resistance at ±15V, <1µs switching time, and TTL/CMOS-compatible logic inputs - used for precision signal routing in data acquisition and control systems.

For engineers reviewing the DG507AEWI+ datasheet, DG507AEWI+ pinout, DG507AEWI+ application, or DG507AEWI+ equivalent, key selection criteria include its differential channel architecture, guaranteed latch-up immunity under powered-off signal conditions, wide analog signal range (±15V), low off-leakage (<5nA), and compatibility with legacy IH6216/HI507 designs.

Technical Context

The DG507AEWI+ implements a symmetrical, bidirectional analog switch matrix with independent A/B differential pairs (S1a–S8a and S1b–S8b), controlled by 4-bit binary address lines (A0–A3) and an active-high enable input. Its break-before-make timing ensures no signal shorting during channel transitions.

It uses monolithic CMOS construction with internal protection diodes clamping analog inputs beyond V+ or V−, operates with rail-to-rail analog signals up to ±15V, and maintains channel-to-channel R_DS(ON) matching within 6% across temperature - critical for high-fidelity multiplexed sensor interfaces.

Key Specifications

Pinout & Package

DG507AEWI+ is housed in a 28-pin Wide SOIC (W28-5) package with gull-wing leads, RoHS-compliant and lead-free per Maxim's "+" suffix designation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with HI507ACJ and DG507ACWI, DG507AEWI+ delivers superior switching speed, lower on-resistance, and extended temperature qualification - making it optimal for new designs requiring robustness, precision, and long-term supply continuity.

Availability

DG507AEWI+ is available at Aetrix Electronics and suitable for data acquisition systems, industrial control systems, avionics displays, and automated test equipment requiring stable component supply and long-lifecycle support.

Supply support for DG507AEWI+ 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

Maxim Integrated (now part of Analog Devices) is a U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and computing markets.

The DG507AEWI+ belongs to Maxim's monolithic CMOS analog multiplexer product line, designed specifically for precision, latch-up-immune signal routing in harsh or safety-critical environments.

FAQ

What is the operating temperature range for DG507AEWI+?

DG507AEWI+ is specified for -40°C to +85°C operation. This extended industrial temperature grade ensures reliable performance in factory automation, outdoor instrumentation, and transportation electronics where ambient conditions exceed commercial limits. The device maintains parameter integrity across this range, including R_DS(ON) matching and leakage stability, as verified in Maxim's overtemperature electrical characteristics tables.

Does DG507AEWI+ support single-supply operation?

No, DG507AEWI+ requires dual supplies (V+ and V−) and does not support true single-supply operation. Its analog signal range is centered around ground and extends symmetrically to ±15V, necessitating both positive and negative rails. Attempting to operate with only V+ and GND will result in undefined behavior and potential damage, as the internal CMOS switches rely on complementary biasing across both rails.

Is DG507AEWI+ pin-compatible with the HI507 series?

Yes, DG507AEWI+ is a documented drop-in replacement for Harris HI507 devices, sharing identical pinout, function mapping, and timing behavior. The datasheet explicitly confirms pin compatibility and specifies that DG507AEWI+ meets or exceeds HI507 specifications - including on-resistance, leakage, and switching time - enabling direct substitution without PCB modification.

What is the maximum analog signal voltage DG507AEWI+ can handle?

DG507AEWI+ supports analog signals from V− to V+, with absolute maximum ratings of -15V to +15V when operated at ±15V supplies. Signals exceeding these bounds are clamped by internal diodes, but forward current must be limited to 20mA per terminal to avoid damage. For safe operation, analog inputs must remain within the supply rails - no rail-to-rail beyond V+/V− is permitted.

How does the break-before-make feature work in DG507AEWI+?

DG507AEWI+ guarantees a minimum 0.2µs break interval between deactivation of one differential channel pair and activation of the next, preventing momentary short-circuits during address transitions. This timing is inherent to the internal decoder and switch driver design, requires no external timing components, and remains consistent across temperature and supply voltage - essential for protecting sensitive downstream circuitry in fault-tolerant systems.