Analog Devices Inc./Maxim Integrated DG406CWI+

Overview

DG406CWI+ from Maxim Integrated is a 16-channel single-ended CMOS analog multiplexer with guaranteed 100Ω max on-resistance, 8Ω max channel-to-channel on-resistance matching, and 15pC max charge injection. It operates from +5V to +30V single supply or ±4.5V to ±20V dual supplies and is widely used in precision data-acquisition systems requiring low signal distortion and rail-to-rail analog handling.

For engineers reviewing the DG406CWI+ datasheet, DG406CWI+ pinout, DG406CWI+ application, or DG406CWI+ equivalent, key selection criteria include on-resistance flatness (9Ω max), input leakage (≤5nA at +85°C), enable timing (tON(EN) ≤ 400ns), and wide-temperature SO package compatibility for industrial test equipment and guidance systems.

Technical Context

The DG406CWI+ implements a CMOS transmission-gate architecture with TTL/CMOS-compatible digital control inputs (A0–A3, EN) and bidirectional analog signal paths. Its internal decoder drives 16 independent switch channels between common output D and inputs S1–S16, supporting both multiplexing and demultiplexing modes.

Guaranteed performance across temperature includes 100Ω max RDS(ON) at TMIN to TMAX, 9Ω max on-resistance flatness over ±10V analog range, and ESD protection >2000V per MIL-STD-883 Method 3015.7 - all validated under dual-supply (±15V) and single-supply (+12V) conditions.

Key Specifications

Pinout & Package

DG406CWI+ is housed in a 28-pin Wide SO (SOIC-W) RoHS-compliant package, 15.4mm × 7.5mm body size, with standard 1.27mm pitch and exposed pad not connected internally.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADG406BRUZ and TS5A3157DCUR, DG406CWI+ uniquely delivers guaranteed 8Ω channel matching and 15pC charge injection in a 16-channel SO package - essential for calibrated multi-sensor acquisition and military-grade test systems where parameter consistency is non-negotiable.

Availability

DG406CWI+ is available at Aetrix Electronics and suitable for data-acquisition systems, automated test equipment, and guidance and control systems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for DG406CWI+ 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 high-performance analog, mixed-signal, and power management ICs for industrial, communications, and computing applications.

DG406CWI+ belongs to Maxim's precision analog multiplexer product line, engineered specifically for applications demanding guaranteed matching, low charge injection, and robust operation across wide supply and temperature ranges.

FAQ

What is the operating temperature range for DG406CWI+?

DG406CWI+ is rated for 0°C to +70°C ambient operation. This commercial-grade temperature range is validated per Maxim's datasheet specifications and applies to the 28-pin Wide SO package. The device maintains guaranteed on-resistance matching (8Ω max), charge injection (15pC max), and leakage (≤5nA at +85°C derated) within this range. For extended temperature operation, consider DG406EWI+ (−40°C to +85°C) or DG406AK+ (−55°C to +125°C).

Does DG406CWI+ support single-supply operation?

Yes, DG406CWI+ supports +5V to +30V single-supply operation. When used in single-supply mode, V− must be connected to GND. The analog signal range remains rail-to-rail (0V to V+), and key specs including 100Ω max RDS(ON) and 15pC max charge injection remain guaranteed. Note that switching times increase at lower voltages - e.g., tON(EN) may exceed 400ns at +5V.

Is DG406CWI+ pin-compatible with the original DG406?

Yes, DG406CWI+ is explicitly designed as a pin-compatible plug-in upgrade for the industry-standard DG406. Its 28-pin Wide SO footprint matches the original DG406CWI pinout exactly, including identical assignments for V+, V−, GND, EN, A0–A3, D, and S1–S16. No PCB layout changes are required for migration, and all timing, electrical, and thermal specs improve over the legacy part.

What is the maximum analog signal voltage supported by DG406CWI+?

DG406CWI+ supports analog signals from V− to V+ - i.e., rail-to-rail operation. With ±15V dual supplies, the full range is −15V to +15V; with +12V single supply (V− = GND), it is 0V to +12V. Absolute maximum ratings allow V+ up to +44V referenced to V−, but guaranteed analog range is limited by supply rails. Exceeding V+ or V− on analog pins triggers internal clamping diodes - forward current must be limited to 30mA.

How does DG406CWI+ handle digital input logic levels?

DG406CWI+ accepts TTL- and CMOS-compatible logic inputs: logic low ≤ 0.8V (VAL), logic high ≥ 2.4V (VAH), with input current ≤ ±1.0µA across temperature. Address lines A0–A3 and enable EN operate independently of analog supply rails - they reference internal logic thresholds, not V+ or V−. This allows interfacing directly with 3.3V or 5V microcontrollers without external level-shifting circuitry.