Analog Devices Inc./Maxim Integrated DG506AEWI+T

Overview

DG506AEWI+T from Maxim Integrated is a monolithic CMOS 16-channel analog multiplexer (1-of-16) with break-before-make switching, ±4.5V to ±18V dual-supply operation, 270Ω typical on-resistance at ±15V, and TTL/CMOS-compatible logic inputs. It routes analog signals in data acquisition systems where bidirectional signal integrity and latch-up immunity are critical.

For engineers reviewing the DG506AEWI+T datasheet, DG506AEWI+T pinout, DG506AEWI+T application, or DG506AEWI+T equivalent, key selection criteria include analog signal range (±15V), channel leakage (<±10nA at +25°C), switching time (1µs transition), and wide-temperature SOIC-28 packaging for industrial embedded designs.

Technical Context

The DG506AEWI+T implements a single-pole, 16-throw analog switch architecture with symmetrical bidirectional conduction and guaranteed break-before-make timing (0.2µs minimum open interval). Its CMOS design ensures rail-to-rail analog signal handling across the full ±15V range when powered from ±15V supplies.

Logic control uses four address lines (A0–A3) and an active-high enable (EN), all compatible with TTL and CMOS voltage thresholds. Internal latch-up proof construction allows safe operation with input signals present during power-down, provided absolute maximum ratings are observed.

Key Specifications

Pinout & Package

Package: 28-pin Wide SO (SOIC-W), RoHS-compliant, surface-mount, 15.4mm × 7.6mm body size, 1.27mm pitch.

Key Features

Applications

Equivalent & Alternatives

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

Compared with HI506CDW and DG506ACWI, the DG506AEWI+T delivers tighter leakage control, superior off-isolation, and guaranteed switching sequencing - making it the preferred choice for precision, safety-critical, and extended-temperature analog routing where signal integrity cannot be compromised.

Availability

DG506AEWI+T is available at Aetrix Electronics and suitable for industrial data acquisition, avionics signal routing, and portable test equipment requiring stable component supply across extended temperature and long-lifecycle programs.

Supply support for DG506AEWI+T 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, automotive, and communications markets.

The DG506AEWI+T belongs to Maxim's precision analog multiplexer product line, designed specifically for high-fidelity, rail-to-rail signal routing in harsh-environment data acquisition and control systems where reliability and parameter consistency are non-negotiable.

FAQ

What is the operating temperature range for DG506AEWI+T?

The DG506AEWI+T is specified for operation from −40°C to +85°C, validated per its ACWI-grade qualification and supported by overtemperature electrical characterization data showing R_DS(ON) ≤ 550Ω and leakage ≤ ±300nA across this range. This exceeds standard commercial grade and aligns with industrial deployment requirements.

Does DG506AEWI+T support single-supply operation?

No - the DG506AEWI+T requires dual supplies (V+ and V−) to achieve its full ±15V analog signal range and symmetrical bidirectional performance. It does not operate correctly with V− tied to GND; attempting single-supply use results in undefined switching behavior and potential damage if input signals exceed V+ or GND.

How is break-before-make timing verified for DG506AEWI+T?

Break-before-make timing is guaranteed at ≥0.2µs minimum open interval under all operating conditions, as measured per Figure 3 in the official DG506A datasheet (Rev 4, 6/12). This specification is production-tested and applies to DG506AEWI+T as a member of the DG506A family with identical internal switch driver architecture.

Can DG506AEWI+T replace the Intersil IH6116 in existing designs?

Yes - the DG506AEWI+T is explicitly documented as a drop-in replacement for the IH6116, sharing identical pinout, logic interface, supply requirements, and functional behavior. No PCB or firmware changes are needed; only verification of thermal margin and leakage performance in the target application is recommended.

What is the maximum analog signal frequency supported by DG506AEWI+T?

The DG506AEWI+T maintains 68dB off-isolation at 500kHz, and its 1µs switching time supports effective bandwidths up to ~1MHz in multiplexed sampling applications. For higher-frequency signals (>1MHz), channel capacitance (C_S(OFF) = 6pF, C_D(OFF) = 45pF) and on-resistance (270Ω) form a low-pass filter limiting usable bandwidth to approximately 600kHz for −3dB response.