Analog Devices Inc./Maxim Integrated MAX4700CWE

Overview

MAX4700CWE from Maxim Integrated is a dual SPST CMOS analog switch with one normally closed (NC) and one normally open (NO) channel, guaranteed break-before-make switching, 1.25Ω max on-resistance, ±4.5V to ±20V dual-supply or +4.5V to +36V single-supply operation, and rail-to-rail signal handling - ideal for precision data acquisition and reed relay replacement in automated test equipment.

For engineers reviewing the MAX4700CWE datasheet, MAX4700CWE pinout, MAX4700CWE application, or MAX4700CWE equivalent, this page delivers verified electrical parameters, package mapping, functional pin roles, real-world use scenarios, and two confirmed alternative parts with documented technical and application differences.

Technical Context

The MAX4700CWE implements complementary MOSFET-based SPST switches with independent digital control inputs (IN1, IN2), separate logic supply (VL), and dual analog supplies (V+, V−). Its guaranteed break-before-make timing (5–125 ns) prevents signal shorting during channel transitions, critical in multiplexer or signal routing applications requiring fault-free switching.

It supports rail-to-rail analog signals across the full supply range, maintains ≤0.3Ω on-resistance matching between channels, and achieves ≤0.3Ω on-resistance flatness over ±10V signal swing - enabling low-distortion, high-fidelity signal path control in precision instrumentation and communication systems.

Key Specifications

Pinout & Package

MAX4700CWE is housed in a 16-pin Wide SO (SOIC-W) package with 0.3" body width and standard 1.27mm pitch. Pin 1 is located at the top-left corner when the notch faces upward.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADG1419BRUZ and TS5A3157DCKR, the MAX4700CWE uniquely supports dual-supply operation, guarantees break-before-make timing, and delivers robust performance across ±20V analog rails - making it the only option among the three qualified for high-reliability, mixed-signal test instrumentation.

Availability

MAX4700CWE is available at Aetrix Electronics and suitable for automated test equipment, precision data acquisition systems, and telecom signal routing applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for MAX4700CWE 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.

The MAX4700 belongs to Maxim's precision analog switch family, engineered specifically for low-distortion, high-reliability signal routing in test and measurement, instrumentation, and telecom infrastructure.

FAQ

What is the guaranteed break-before-make timing specification for MAX4700CWE?

The MAX4700CWE guarantees a break-before-make interval of 5ns minimum to 125ns maximum under dual-supply conditions (V+ = +15V, V− = −15V, TA = TMIN to TMAX). This parameter is explicitly specified in the Electrical Characteristics table for the MAX4700 variant and is not applicable to MAX4680 or MAX4690. The timing ensures no overlap between NC and NO paths during switching transitions, critical for avoiding signal shorts in multiplexed systems.

Does MAX4700CWE support single-supply operation, and what is the minimum voltage?

Yes, the MAX4700CWE supports single-supply operation from +4.5V to +36V, with V− tied to GND. The absolute minimum supply voltage is +4.5V - operation below this level is not characterized or guaranteed. At +5V, typical on-resistance is 1.6Ω (max 3Ω), and logic inputs remain TTL/CMOS-compatible via the dedicated VL pin, which can be set independently (e.g., to 3.3V or 5V).

What is the maximum continuous current rating per switch channel in MAX4700CWE?

The MAX4700CWE supports ±200mA continuous current through each COM/NO/NC terminal. This rating applies across the full operating temperature range (0°C to +70°C for the 'C' grade) and is validated under worst-case thermal conditions. Peak current of ±300mA is allowed for pulsed operation (1ms duration, 10% duty cycle), enabling brief overload tolerance in transient-driven applications like sensor excitation bursts.

How does the VL pin function in MAX4700CWE, and can it be tied to V+?

The VL pin provides an independent logic supply reference for the IN1 and IN2 digital inputs, ensuring TTL/CMOS compatibility across the full analog supply range. It must be connected to a stable voltage between −0.3V and (V+ + 0.3V); tying VL directly to V+ is permitted and commonly used in single-supply designs. Doing so sets the input thresholds to ~0.8V (low) and ~2.4V (high), matching standard 5V logic levels without additional level-shifting circuitry.

Is MAX4700CWE pin-compatible with other devices in the MAX4680/MAX4690/MAX4700 family?

Yes, the MAX4700CWE shares identical pinout and package (16-pin Wide SO) with MAX4680CWE and MAX4690CWE. All three variants use the same physical layout, allowing direct PCB footprint reuse. However, their internal switch configurations differ: MAX4680 has dual NC, MAX4690 has dual NO, and MAX4700 has one NC + one NO with guaranteed break-before-make - requiring firmware or schematic updates despite mechanical compatibility.