Analog Devices Inc./Maxim Integrated DG507ACWI+T

Overview

DG507ACWI+T 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, and TTL/CMOS-compatible logic inputs. It serves as a bidirectional signal routing device in precision data acquisition systems requiring low leakage and symmetrical analog path performance.

For engineers reviewing the DG507ACWI+T datasheet, DG507ACWI+T pinout, DG507ACWI+T application, or DG507ACWI+T equivalent, this page delivers verified specifications, validated pin functions, real-world use scenarios, and confirmed drop-in alternatives for industrial and aerospace signal conditioning designs.

Technical Context

The DG507ACWI+T implements a fully differential 8-channel architecture-each channel comprises two matched analog paths (a and b)-enabling simultaneous selection of complementary signal pairs. Its internal CMOS switch array supports bidirectional signal flow with symmetrical on-resistance and capacitance across all channels.

Break-before-make timing ensures no transient shorting between channels during address transitions, while latch-up proof construction guarantees robustness when input signals remain active during power-down. The device operates across full military-grade temperature range (0°C to +70°C) in its Wide SO-28 package.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with HI507CDW and DG507AKN+, the DG507ACWI+T delivers optimal balance of low on-resistance, high off-isolation, and commercial-grade Wide SO packaging-making it ideal for cost-sensitive, space-constrained industrial and avionics signal routing where performance consistency matters most.

Availability

DG507ACWI+T is available at Aetrix Electronics and suitable for aircraft heads-up displays, industrial data acquisition systems, and servo control feedback loops requiring stable component supply, RoHS compliance, and long-lifecycle sourcing assurance.

Supply support for DG507ACWI+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 semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, automotive, and communications markets.

The DG507ACWI+T belongs to Maxim's legacy analog multiplexer product line, engineered for precision signal routing in harsh environments where reliability, low leakage, and supply flexibility are mandatory.

FAQ

What is the maximum analog signal voltage range supported by the DG507ACWI+T?

The DG507ACWI+T supports an analog signal range of ±15V when operated with ±15V supplies. This is specified in the Electrical Characteristics table under "Analog Signal Range" and applies across the full 0°C to +70°C operating temperature range. Signals beyond ±15V risk clamping by internal diodes and must be limited per Absolute Maximum Ratings.

Does the DG507ACWI+T require external pull-up or pull-down resistors on its address lines (A0–A2)?

No, the DG507ACWI+T does not require external pull-up or pull-down resistors on A0–A2. Its address inputs are TTL/CMOS compatible with defined logic thresholds (VAL ≤ 0.8V for low, VAH ≥ 2.4V for high), and input currents are extremely low (±0.002μA typical), allowing direct connection to microcontroller GPIOs without additional biasing components.

Can the DG507ACWI+T be used with single-supply operation, such as +12V and GND?

No-the DG507ACWI+T is designed exclusively for dual-supply operation (±V). Its internal CMOS switch architecture requires symmetric positive and negative rails (e.g., +15V/–15V or ±5V). Single-supply configurations violate the Absolute Maximum Ratings for GND (25V max referenced to V−) and will result in improper switching or damage.

What is the purpose of the "break-before-make" feature in the DG507ACWI+T, and how is it implemented?

The break-before-make feature in the DG507ACWI+T enforces a guaranteed 0.2μs minimum open interval between deactivation of one channel and activation of the next, preventing momentary shorting. It is implemented via internal timing circuitry that delays address decoding until the previous switch is fully off-verified in Figure 3 of the datasheet and guaranteed over temperature.

How does the DG507ACWI+T achieve latch-up immunity during power-down with live input signals?

The DG507ACWI+T achieves latch-up immunity through Maxim's proprietary latch-up proof CMOS process and robust ESD protection structures. As stated in the General Description, it remains immune to latch-up even when input signals are present while V+ and V− supplies are turned off-provided absolute maximum ratings (e.g., V+ ≤ 44V, V− ≥ –44V) are not exceeded.