Analog Devices Inc./Maxim Integrated MAX4600EWE+

Overview

MAX4600EWE+ from Maxim Integrated is a dual SPST CMOS analog switch with one normally closed (NC) and one normally open (NO) channel, designed for rail-to-rail signal routing in precision analog systems. It delivers 1.25Ω max on-resistance, 0.25Ω max R_ON match between channels, and 2.5nA max off-leakage at +85°C, enabling low-distortion switching in automated test equipment and communication interfaces.

For engineers reviewing the MAX4600EWE+ datasheet, MAX4600EWE+ pinout, MAX4600EWE+ application, or MAX4600EWE+ equivalent, key selection criteria include single/dual-supply operation (+4.5V to +36V or ±4.5V to ±20V), TTL/CMOS-compatible logic thresholds, guaranteed R_ON flatness (0.3Ω max), ESD protection >2kV, and SOIC-Wide-16 package compatibility.

Technical Context

The MAX4600EWE+ integrates two independent SPST switches sharing common supply rails (V+, V−, GND, VL) but with separate control inputs (IN1, IN2) and analog terminals (COM1/NC1/NO1, COM2/NC2/NO2). Its CMOS architecture ensures symmetrical conduction for bipolar signals and minimal charge injection (40pC typical).

Switch behavior follows complementary logic: IN1 = 0 turns SW1 ON (COM1 ↔ NC1), IN1 = 1 turns SW1 OFF; IN2 = 1 turns SW2 ON (COM2 ↔ NO2), IN2 = 0 turns SW2 OFF - enabling mixed-mode signal path configuration without external logic inversion.

Key Specifications

Pinout & Package

MAX4600EWE+ uses a 16-pin Wide SOIC (SOIC-W) package (7.6mm × 10.3mm body, 1.27mm pitch), rated for −40°C to +85°C operation.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual SPST analog switch applications.

Compared with ADG1419BRUZ and TS5A23159DRCR, the MAX4600EWE+ uniquely combines mixed NC/NO topology, wide supply range (+4.5V to +36V / ±4.5V to ±20V), and guaranteed R_ON match in a proven industrial SOIC-W package - making it the preferred choice for reed relay replacement and ATE signal routing where reliability and voltage versatility are critical.

Availability

MAX4600EWE+ is available at Aetrix Electronics and suitable for automated test equipment, telecom line interface modules, and PBX signal routing requiring stable component supply across extended temperature ranges (−40°C to +85°C).

Supply support for MAX4600EWE+ 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, communications, and computing markets.

The MAX4580/MAX4590/MAX4600 family was engineered specifically for low-distortion, high-reliability analog signal switching in environments where mechanical relays fail - emphasizing rail-to-rail operation, tight R_ON matching, and robust ESD tolerance.

FAQ

What is the operating temperature range for MAX4600EWE+?

The MAX4600EWE+ is specified for operation from −40°C to +85°C. This extended industrial temperature range is confirmed in the Ordering Information table and Absolute Maximum Ratings section of the datasheet. The 'E' suffix in MAX4600EWE+ explicitly denotes the −40°C to +85°C grade, distinguishing it from the 'C' grade (0°C to +70°C). Thermal performance metrics like on-resistance and leakage current are guaranteed across this full range.

Does MAX4600EWE+ support single-supply operation?

Yes, MAX4600EWE+ supports single-supply operation from +4.5V to +36V. In this mode, V− is connected to GND, V+ supplies the positive rail, and analog signals swing from GND to V+. The Electrical Characteristics table explicitly lists single-supply parameters (e.g., V+ = +12V, V− = 0), and the Pin Description confirms V− can be tied to GND. This eliminates the need for dual supplies in many industrial and test applications.

What is the function of the VL pin on MAX4600EWE+?

The VL pin on MAX4600EWE+ is the logic supply input, which powers the internal digital control circuitry independently from the analog supplies (V+, V−). It accepts +2.7V to +5.5V and decouples switching noise from the analog signal path. This separation improves PSRR and reduces digital feedthrough into sensitive analog nodes - a key design feature confirmed in the Pin Description and Electrical Characteristics tables.

How are the NC and NO channels controlled on MAX4600EWE+?

MAX4600EWE+ features one NC channel (COM1 ↔ NC1) and one NO channel (COM2 ↔ NO2), each controlled by independent logic inputs: IN1 drives the NC switch (low = ON), and IN2 drives the NO switch (high = ON). This complementary logic is defined in the Truth Tables and Pin Configurations section. The device does not invert logic - IN1 = 0 closes COM1–NC1, IN2 = 1 closes COM2–NO2, enabling flexible mixed-path routing.

Is MAX4600EWE+ pin-compatible with MAX4580EWE+ or MAX4590EWE+?

No, MAX4600EWE+ is not pin-compatible with MAX4580EWE+ or MAX4590EWE+. Although all three share the same 16-pin SOIC-W package and pin count, their pin functions differ significantly: MAX4580EWE+ has two NC switches (pins 9,16 = NC1,NC2), MAX4590EWE+ has two NO switches (pins 9,16 = NO1,NO2), while MAX4600EWE+ assigns pin 9 to NC1 and pin 16 to NC2 - but also routes NO2 to pin 11 and NO1 to pin 14. The functional diagrams confirm distinct terminal assignments.