Analog Devices Inc./Maxim Integrated MAX4664CSE

Overview

MAX4664CSE from Maxim Integrated is a quad SPST analog switch with four normally closed (NC) channels, designed for rail-to-rail signal routing in precision analog systems. It delivers 5Ω max on-resistance, 0.5Ω max R_ON match between channels, and <5nA off-leakage at +85°C, enabling low-distortion reed relay replacement in test equipment and PBX systems.

For engineers reviewing the MAX4664CSE datasheet, MAX4664CSE pinout, MAX4664CSE application, or MAX4664CSE equivalent, key selection criteria include guaranteed NC configuration, single-supply operation from +4.5V to +36V, TTL/CMOS-compatible logic thresholds, and SOIC-16 packaging for space-constrained industrial signal routing.

Technical Context

The MAX4664CSE implements CMOS-based transmission-gate architecture with integrated level-shifting circuitry to support dual ±4.5V to ±20V or single +4.5V to +36V analog supplies while maintaining TTL/CMOS-compatible digital inputs referenced to VL. Its internal protection diodes clamp signals exceeding V+ or V−, limiting forward current to rated levels.

All four switches operate synchronously with independent digital control inputs (IN1–IN4), where logic-low activates the NC path (COM↔NC conductive) and logic-high opens it. The device guarantees break-before-make timing only in the MAX4666 variant-MAX4664CSE has no break-before-make requirement due to its NC-only topology.

Key Specifications

Pinout & Package

MAX4664CSE is housed in a 16-pin narrow SOIC (SO/DIP) package, 3.9mm wide, with standard 1.27mm pitch and gull-wing leads suitable for automated PCB assembly.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX4665CSE, MAX4664CSE provides inherent safety via NC default, critical in fault-tolerant systems; versus ADG1414BRUZ, it trades 3.2Ω higher R_ON for broader supply range, integrated logic level shifting, and NC behavior-making it optimal for industrial relay replacement where reliability trumps marginal R_ON reduction.

Availability

MAX4664CSE is available at Aetrix Electronics and suitable for reed relay replacement, PBX signal routing, and test equipment multiplexing requiring stable component supply across extended temperature and voltage ranges.

Supply support for MAX4664CSE 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 and mixed-signal ICs for industrial, communications, and automotive applications, emphasizing precision, reliability, and integration.

The MAX4664 series belongs to Maxim's precision analog switch product line, engineered specifically for low-R_ON, rail-to-rail signal routing in systems replacing mechanical relays or requiring fail-safe NC behavior.

FAQ

What is the default switch state of MAX4664CSE when power is applied?

The MAX4664CSE features four normally closed (NC) switches, meaning each COM–NC path is conductive when its respective IN pin is at logic-low (≤0.8V). At power-up, if control inputs are floating or pulled low, all switches remain closed-providing fail-safe continuity. This NC behavior distinguishes MAX4664CSE from NO variants like MAX4665CSE and is essential for safety-critical signal hold applications.

Can MAX4664CSE operate from a single +12V supply?

Yes, MAX4664CSE supports single-supply operation from +4.5V to +36V. When using +12V, connect V− to GND, apply +12V to V+, and supply +5V to VL. Electrical characteristics-including 5Ω max R_ON, 5nA max off-leakage at +85°C, and TTL/CMOS-compatible logic thresholds-are fully specified and guaranteed under this configuration per the datasheet's Single Supply section.

Does MAX4664CSE require external protection diodes for overvoltage?

No-MAX4664CSE integrates internal clamping diodes on all analog pins (COM, NC, NO) that activate when signals exceed V+ or fall below V−. These diodes limit forward current to safe levels per Absolute Maximum Ratings. External diodes (as shown in Figure 1) are optional and only recommended if strict sequencing cannot be ensured; their use reduces usable signal range by ~0.7V but preserves R_ON and leakage performance.

What is the maximum signal frequency supported by MAX4664CSE?

MAX4664CSE maintains ≤2dB insertion loss from DC to >100MHz in 50Ω systems when ON. However, off-isolation degrades above 30MHz due to capacitive coupling-dropping to −40dB at 100MHz and −20dB at 300MHz. For RF applications above 5MHz, layout optimization is critical; for broadband signal routing up to 160MHz, Maxim recommends the MAX440/MAX441/MAX442 family instead.

How does MAX4664CSE handle rail-to-rail analog signals?

MAX4664CSE supports true rail-to-rail analog signal handling: input voltages on COM, NC, or NO pins may swing continuously from V− to V+, including ground when V− = GND in single-supply mode. This capability is enabled by its CMOS transmission-gate architecture and verified across the full operating temperature range (0°C to +70°C for MAX4664CSE), ensuring undistorted passage of ±10V instrumentation signals or 0–24V industrial I/O.