Analog Devices Inc./Maxim Integrated MAX396EWI+

Overview

The MAX396EWI+ from Maxim Integrated is a precision 16-channel single-ended CMOS analog multiplexer designed for low-voltage signal routing in data acquisition and test systems. It delivers ≤100Ω on-resistance (max), ≤6Ω channel-to-channel R_ON matching, and <1nA input off-leakage at +85°C, operating from +2.7V to +16V single supply or ±2.7V to ±8V dual supplies.

For engineers reviewing the MAX396EWI+ datasheet, MAX396EWI+ pinout, MAX396EWI+ application, or MAX396EWI+ equivalent, key selection criteria include guaranteed R_ON flatness (≤10Ω over signal range), low 5pC max charge injection, TTL/CMOS-compatible logic inputs, and pin compatibility with industry-standard analog mux families including MAX306, DG406, and DG506A.

Technical Context

The MAX396EWI+ implements a silicon-gate CMOS switch architecture with integrated decoder logic, enabling 1-of-16 channel selection via four address lines (A0–A3) and an active-high enable (EN). Its design guarantees break-before-make switching and maintains low leakage across -40°C to +85°C operation.

It supports bidirectional analog signal routing between COM and any of 16 NO terminals, with all analog pins rated for (V− − 2V) to (V+ + 2V) voltage tolerance and ±30mA absolute maximum current. The device uses substrate-connected-to-V+ construction to minimize latch-up risk under overvoltage conditions.

Key Specifications

Pinout & Package

MAX396EWI+ is housed in a 28-pin Wide SO (SOIC-W) package with 0.300" body width and standard 0.050" lead pitch. Pin 1 is marked by a beveled corner or dot; pin numbering follows standard SOIC convention.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX306EWI+ and DG406DN+, the MAX396EWI+ provides tighter R_ON matching and lower leakage-critical for multichannel precision data acquisition-while maintaining pin compatibility and identical SOIC-W packaging for drop-in replacement in existing layouts.

Availability

MAX396EWI+ is available at Aetrix Electronics and suitable for automatic test equipment, industrial process control, audio routing, and sample-and-hold circuit designs requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MAX396EWI+ 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, communications, and computing applications.

The MAX396EWI+ belongs to Maxim's precision analog multiplexer product line, engineered specifically for low-leakage, low-charge-injection signal routing in high-accuracy data acquisition and automated test systems.

FAQ

What is the operating temperature range for the MAX396EWI+?

The MAX396EWI+ is rated for operation from −40°C to +85°C, meeting industrial-grade environmental requirements. This extended range is confirmed in the Ordering Information table (MAX396EWI designation) and supported by electrical characteristics tested across TMIN to TMAX, including leakage, R_ON, and switching parameters. The device uses Maxim's low-voltage silicon-gate process to ensure stability across this full span.

Does the MAX396EWI+ support single-supply operation?

Yes, the MAX396EWI+ supports single-supply operation from +2.7V to +16V. When using a single supply, V− must be connected to GND. Electrical specifications-including on-resistance (up to 650Ω at +3V), leakage, and transition time-are fully characterized down to +2.7V. Operation below +2.7V is not guaranteed, though functional switching may occur at lower voltages during power ramp-up.

Is the MAX396EWI+ pin-compatible with the MAX306 series?

Yes, the MAX396EWI+ is explicitly documented as pin-compatible with the MAX306/MAX307 family, as well as DG406/DG407 and DG506A/DG507A. This compatibility includes identical 28-pin SOIC-W footprint, pin functions (V+, V−, GND, COM, NO1–NO16, A0–A3, EN), and logic-level thresholds. No PCB layout changes are required when upgrading from MAX306EWI+ to MAX396EWI+.

What is the maximum analog signal range supported by the MAX396EWI+?

The MAX396EWI+ supports an analog signal range from V− to V+, meaning it passes signals spanning the full supply rails. With ±5V supplies, this equals −5V to +5V; with +5V/V− = GND, it supports 0V to +5V. Absolute maximum ratings allow signals up to (V− − 2V) to (V+ + 2V), but functional operation is limited to the V−–V+ range. R_ON flatness is guaranteed over ±3V with ±5V supplies.

How does charge injection performance impact system design with the MAX396EWI+?

Charge injection in the MAX396EWI+ is guaranteed ≤5pC, which directly limits voltage glitch on downstream sample-and-hold capacitors. For example, with a 100pF hold capacitor, the worst-case step is 50mV-requiring additional settling time or buffering. Designers should use low-capacitance traces, minimize stray capacitance at COM, and consider guard rings to mitigate this effect in high-resolution (≥16-bit) data acquisition systems using the MAX396EWI+.