Analog Devices Inc./Maxim Integrated MAX4663CWE+

Overview

MAX4663CWE+ from Maxim Integrated is a quad SPST analog switch IC with two normally open (NO) and two normally closed (NC) channels, featuring 2.5Ω max on-resistance, guaranteed break-before-make switching, and rail-to-rail signal handling across ±4.5V to ±20V dual or +4.5V to +36V single supply. It supports TTL/CMOS logic inputs via dedicated VL pin and delivers <0.5Ω R_ON match and flatness for precision signal routing in data acquisition and test equipment.

For engineers reviewing the MAX4663CWE+ datasheet, MAX4663CWE+ pinout, MAX4663CWE+ application, or MAX4663CWE+ equivalent, key selection criteria include verified break-before-make timing (5–125 ns), low charge injection (20 pC typ), off-isolation of –60 dB at 1 MHz, and compatibility with wide analog signal ranges up to ±10V while maintaining sub-5nA leakage at +85°C.

Technical Context

The MAX4663CWE+ implements CMOS transmission-gate architecture with independent channel control, enabling simultaneous operation of NO and NC switches under identical supply conditions. Its break-before-make behavior is guaranteed-not inferred-via internal timing circuitry that enforces ≥5 ns minimum dead time between channel transitions.

All four switches share a common analog supply domain (V+, V−), while logic-level translation is isolated via the VL pin, allowing interface with 3.3V or 5V controllers regardless of analog rail voltage. On-resistance flatness (≤0.7Ω max over ±10V signal range) and matched R_ON (≤0.4Ω max) are production-tested parameters, not typical-only specifications.

Key Specifications

Pinout & Package

MAX4663CWE+ is housed in a 16-pin Wide SO (SOIC-W) package with 0.3-inch body width and standard 1.27 mm pitch. The package is RoHS-compliant and rated for 0°C to +70°C industrial operation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX4663CWE+, ADG1412BRUZ offers lower on-resistance but no timing guarantee between NO/NC transitions, while TS5A3157DCUR provides higher integration density at the cost of supply flexibility and rail-to-rail performance-making MAX4663CWE+ the sole option supporting guaranteed break-before-make with ±20V dual-supply operation.

Availability

MAX4663CWE+ is available at Aetrix Electronics and suitable for reed relay replacement, test equipment multiplexing, and audio-signal routing requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for MAX4663CWE+ 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 applications.

The MAX466x family was designed specifically for high-fidelity analog signal routing in automated test equipment and instrumentation, emphasizing guaranteed timing behavior, rail-to-rail operation, and low distortion across wide temperature and supply ranges.

FAQ

What is the guaranteed break-before-make timing specification for MAX4663CWE+?

The MAX4663CWE+ guarantees a break-before-make interval of 5 ns minimum to 125 ns maximum under all operating conditions, as tested per Figure 3 in the datasheet. This timing is enforced by internal circuitry-not process variation-and applies specifically to the paired NO/NC channels (e.g., IN1 controls NC1 and NO1). The specification ensures no overlap between conduction states, preventing transient shorts in critical signal routing paths.

Can MAX4663CWE+ operate from a single 5V supply?

Yes, MAX4663CWE+ supports single-supply operation from +4.5V to +36V. With V+ = +5V and V− tied to GND, it handles rail-to-rail analog signals from 0V to +5V. Logic inputs remain compatible via the VL pin, which may be connected to +3.3V or +5V. However, on-resistance increases slightly (4Ω max vs. 2.5Ω at ±15V), and off-isolation degrades to –55 dB at 1 MHz-parameters confirmed in the Single Supply Electrical Characteristics table.

Does MAX4663CWE+ require external protection diodes for overvoltage tolerance?

No, MAX4663CWE+ includes internal ESD protection diodes rated >2 kV per Method 3015.7, sufficient for typical handling and board-level transients. External diodes (as shown in Figure 1) are recommended only when analog inputs may exceed V+ or fall below V− by more than 0.3V-such as in fault conditions or hot-swap scenarios. In normal operation with proper supply sequencing (V+ first, then V−, then logic), external protection is unnecessary.

How does the VL pin affect logic compatibility in MAX4663CWE+?

The VL pin decouples logic threshold referencing from analog supplies, allowing MAX4663CWE+ to accept 3.3V or 5V TTL/CMOS inputs regardless of whether V+ is +12V or ±15V. When VL = +3.3V, VIN_H = 2.4V and VIN_L = 0.8V are guaranteed-enabling direct interface with modern microcontrollers without level shifters. This separation eliminates supply-rail dependency in control signaling, a key differentiator versus legacy analog switches.

What is the maximum continuous current rating per switch in MAX4663CWE+?

Each switch in MAX4663CWE+ is rated for ±200 mA continuous current through COM/NO/NC terminals, as specified in Absolute Maximum Ratings. This rating holds across the full operating temperature range (0°C to +70°C) and supply configurations. Exceeding this limit risks thermal runaway or parametric shift; for pulsed operation, peak current may reach ±300 mA at 1 ms pulse width and 10% duty cycle-verified in production testing and documented in the datasheet's Absolute Maximum Ratings table.