Analog Devices Inc./Maxim Integrated MAX4664CSE+T

Overview

MAX4664CSE+T from Maxim Integrated is a quad SPST analog switch with four normally closed (NC) channels, 5Ω max on-resistance, ±4.5V to ±20V dual-supply or +4.5V to +36V single-supply operation, and rail-to-rail signal handling - used in reed relay replacement and automated test equipment where low distortion and high reliability are required.

For engineers reviewing the MAX4664CSE+T datasheet, MAX4664CSE+T pinout, MAX4664CSE+T application, or MAX4664CSE+T equivalent, key selection criteria include guaranteed R_ON matching (≤0.5Ω), break-before-make timing (not applicable - MAX4664 only), off-leakage ≤5nA at +85°C, and TTL/CMOS-compatible logic thresholds across supply configurations.

Technical Context

The MAX4664CSE+T implements CMOS-based transmission-gate architecture with integrated ESD protection (>2kV per Method 3015.7) and internal clamp diodes for overvoltage robustness. Its four NC switches operate with matched on-resistance and flat R_ON profile (≤0.5Ω variation) over the full ±10V analog signal range.

Digital control inputs feature fixed +0.8V/–+2.4V logic thresholds independent of supply voltage, enabling interoperability with TTL/CMOS systems under ±15V or +12V supplies. The device supports both single- and dual-supply biasing without external level-shifting circuitry.

Key Specifications

Pinout & Package

MAX4664CSE+T is housed in a 16-pin narrow SOIC (SOIC-N) package with 1.27mm pitch, rated for 0°C to +70°C operation. Pin 1 is marked with a notch or dot; the package is RoHS-compliant and moisture-sensitive level 1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADG1414BRUZ and TS5A23157DCUR, the MAX4664CSE+T uniquely balances wide supply range, guaranteed R_ON matching, and NC-only topology for fail-safe signal closure - making it the preferred choice for industrial test and telecom infrastructure where reliability under varying rail conditions is non-negotiable.

Availability

MAX4664CSE+T is available at Aetrix Electronics and suitable for reed relay replacement, PBX/PABX systems, and test equipment requiring stable component supply across extended temperature and voltage ranges.

Supply support for MAX4664CSE+T 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, automotive, and communications markets.

The MAX4664CSE+T belongs to Maxim's high-voltage analog switch product line, engineered specifically for replacing electromechanical relays and enabling robust, low-distortion signal routing in harsh supply environments.

FAQ

What is the maximum operating temperature range for the MAX4664CSE+T?

The MAX4664CSE+T is specified for 0°C to +70°C operation. It is the commercial-grade variant - distinct from the extended-range MAX4664ESE (–40°C to +85°C). Thermal derating begins above +70°C, with narrow SO package power dissipation limited to 696mW at ambient, decreasing by 8.70mW/°C above that point. Always verify junction temperature in final layout using θ_JA = 115°C/W.

Does the MAX4664CSE+T support break-before-make switching?

No, the MAX4664CSE+T does not support break-before-make switching. It is a quad normally closed (NC) switch - all four channels close when logic input is low and open when high. Break-before-make is only guaranteed in the MAX4666 variant (two NC + two NO channels). Using MAX4664CSE+T in applications requiring BBM timing requires external control sequencing or supplemental logic.

Can the MAX4664CSE+T be operated from a single +5V supply?

Yes, the MAX4664CSE+T supports single-supply operation down to +4.5V. With V+ = +5V and V− tied to GND, it delivers rail-to-rail analog switching from 0V to +5V. However, R_ON increases to 8Ω max (vs. 5Ω at +12V), and off-leakage rises slightly. Logic inputs remain compatible via VL = +5V, and IN pins accept 0V/+5V levels directly.

What is the purpose of the VL pin on the MAX4664CSE+T?

The VL pin on the MAX4664CSE+T sets the logic supply reference for digital inputs, decoupling control voltage from analog rails. It accepts +2.7V to +5.5V and defines the +0.8V/+2.4V logic thresholds independently of V+ or V−. This allows interfacing with 3.3V or 5V microcontrollers even when analog supplies are ±15V - eliminating level shifters and simplifying mixed-voltage system design.

How does the MAX4664CSE+T handle overvoltage conditions on analog pins?

The MAX4664CSE+T includes internal clamp diodes from each NC, NO, and COM pin to V+ and V−. Signals exceeding V+ or falling below V− are clamped, limiting forward diode current to ±100mA continuous. To avoid damage, external series resistors must limit current to within absolute maximum ratings. For unidirectional overvoltage protection beyond ±44V differential, external Schottky diodes to V+/V− are recommended - though this reduces usable analog range by one diode drop.