Analog Devices Inc./Maxim Integrated DG506ADN

Overview

DG506ADN 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 channel count, rail-to-rail signal swing, and latch-up immunity are critical.

For engineers reviewing the DG506ADN datasheet, DG506ADN pinout, DG506ADN application, or DG506ADN equivalent, this device serves as a drop-in replacement for legacy IH6116, DG506A (Siliconix), and HI506 parts - requiring attention to supply polarity, enable timing, analog voltage range, and wide-SO package footprint compatibility.

Technical Context

The DG506ADN implements a single-pole, 16-throw analog switch matrix controlled by four binary address lines (A0–A3) and an active-high enable input (EN). Its CMOS architecture ensures symmetrical, bidirectional signal conduction with no inherent directionality between source and drain terminals.

It features latch-up proof construction per JEDEC JESD78, operates across -55°C to +125°C (A-grade), and guarantees non-latching behavior even when input signals remain present during power-down - provided absolute maximum ratings (e.g., V+ ≤ 44V, V− ≥ -44V) are observed.

Key Specifications

Pinout & Package

Package: 28-pin Wide SO (SOIC-W), RoHS-compliant, body width 7.5mm, pitch 1.27mm.

Key Features

Applications

Equivalent & Alternatives

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

Compared with HI506CD, DG506ADN delivers 33% lower on-resistance and 40% faster switching while maintaining drop-in compatibility; versus DG506ACWI, it shares identical electrical performance but reflects Maxim's updated packaging and traceability standards.

Availability

DG506ADN is available at Aetrix Electronics and suitable for data acquisition systems, industrial control panels, avionics displays, and automated test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for DG506ADN 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) designs precision analog, mixed-signal, and power management ICs for industrial, automotive, and communications infrastructure.

The DG506ADN belongs to Maxim's high-reliability analog switch family, engineered for robust signal routing in harsh environments where supply sequencing, latch-up immunity, and wide voltage operation are essential.

FAQ

What is the maximum analog signal voltage range supported by the DG506ADN?

The DG506ADN supports an analog signal range of ±15V when operated with ±15V supplies. This is specified under VANALOG in the Electrical Characteristics table and applies across the full operating temperature range. The device remains functional up to ±18V supplies, but analog signal swing is limited by the supply rails - never exceeding V− to V+.

Does the DG506ADN require external pull-up or pull-down resistors on its address or enable pins?

No, the DG506ADN does not require external biasing on A0–A3 or EN. Its logic inputs are TTL/CMOS compatible with guaranteed thresholds (VAL ≤ 0.8V for logic low, VAH ≥ 2.4V for logic high) and draw less than ±0.002μA at 25°C. External resistors are unnecessary unless noise immunity in high-EMI environments demands them.

Can the DG506ADN be used with single-supply operation, such as +12V and GND?

No - the DG506ADN is designed exclusively for dual-supply operation (±V). Its internal CMOS switch structure requires symmetrical positive and negative rails to maintain linearity and prevent distortion. Using +12V/GND violates the absolute maximum rating for GND (25V above V−), risks latch-up, and voids guaranteed performance.

What is the meaning of "break-before-make" in the context of DG506ADN switching behavior?

Break-before-make means that the DG506ADN fully opens the previously selected channel before closing the newly addressed one. With a guaranteed 0.2μs minimum interval, this prevents momentary short-circuits between analog sources - critical when routing signals from independent voltage domains or high-impedance sensors.

Is DG506ADN pin-compatible with the original Intersil IH6116 multiplexer?

Yes - the DG506ADN is explicitly documented as a drop-in replacement for Intersil's IH6116. Pin functions, pin numbering, supply requirements, logic thresholds, and timing parameters match identically. No PCB redesign or firmware change is needed when substituting DG506ADN for IH6116 in existing designs.