Analog Devices Inc./Maxim Integrated MAX4665ESE+T

Overview

MAX4665ESE+T from Maxim Integrated is a quad single-pole single-throw (SPST) analog switch with four normally open (NO) channels, 5Ω maximum on-resistance, ±4.5V to ±20V dual-supply or +4.5V to +36V single-supply operation, and rail-to-rail signal handling - ideal for audio-signal routing and automatic test equipment where low distortion and mechanical relay replacement are required.

For engineers reviewing the MAX4665ESE+T datasheet, MAX4665ESE+T pinout, MAX4665ESE+T application, or MAX4665ESE+T equivalent, key selection criteria include guaranteed R_ON match (≤0.5Ω), off-leakage current ≤5nA at +85°C, TTL/CMOS-compatible logic thresholds, and SOIC-16 package compatibility with industrial temperature range (-40°C to +85°C).

Technical Context

The MAX4665ESE+T implements CMOS-based SPST switching architecture with break-before-make timing not guaranteed (unlike MAX4666), supporting bidirectional analog signal flow across all four NO channels. Its control logic accepts 0.8V/2.4V thresholds, enabling direct interface with +12V single-supply or ±15V dual-supply systems without level-shifting.

Each channel delivers flat on-resistance (≤0.5Ω variation over full signal range) and matched R_ON (≤0.5Ω max difference between any two switches), ensuring minimal gain error in precision multiplexing. Internal ESD protection exceeds 2kV per Method 3015.7, and charge injection is limited to 300pC typical.

Key Specifications

Pinout & Package

MAX4665ESE+T is housed in a 16-pin narrow SOIC (SO/DIP) package, footprint-compatible with industry-standard 16-pin SOIC layouts and rated for -40°C to +85°C operation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADG1414BRUZ and TS5A3157DCKR, the MAX4665ESE+T offers unique quad NO configuration with independent VL biasing, wider supply range (+4.5V to +36V), and guaranteed R_ON flatness - making it optimal for industrial multiplexing where supply flexibility and channel matching outweigh ultra-low R_ON.

Availability

MAX4665ESE+T is available at Aetrix Electronics and suitable for automatic test equipment, audio-signal routing, and reed relay replacement applications requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MAX4665ESE+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) 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 MAX4664/MAX4665/MAX4666 family was designed specifically for high-fidelity analog signal routing in environments demanding low distortion, wide supply tolerance, and mechanical relay replacement - targeting test, measurement, and avionics systems.

FAQ

What is the operating temperature range for the MAX4665ESE+T?

The MAX4665ESE+T is specified for industrial operation from -40°C to +85°C. This rating is confirmed in the Ordering Information table and Absolute Maximum Ratings section of the datasheet, and applies to the E-grade version in the narrow SOIC package. The device maintains full electrical performance-including 5Ω max R_ON and 5nA max off-leakage-across this entire range.

Does the MAX4665ESE+T support single-supply operation?

Yes, the MAX4665ESE+T supports single-supply operation from +4.5V to +36V. In this mode, V− is connected to GND, V+ supplies the positive rail, and VL must be set to a valid logic voltage (typically +5V). Electrical Characteristics tables explicitly list single-supply test conditions (e.g., V+ = +12V, V− = 0), confirming full functionality including rail-to-rail signal handling and TTL/CMOS-compatible thresholds.

What is the function of the VL pin on the MAX4665ESE+T?

The VL pin on the MAX4665ESE+T sets the logic supply reference for the digital control inputs (IN1–IN4). It must be connected to a stable voltage between 2.7V and V+, and determines the actual logic thresholds (VIN_L = 0.8V, VIN_H = 2.4V relative to GND). This independent VL bias enables reliable interface with diverse logic families-even when analog supplies are ±15V-without requiring external level shifters.

Is the MAX4665ESE+T pin-compatible with other devices in the MAX466x family?

Yes, the MAX4665ESE+T shares identical pinout and package (16-pin narrow SOIC) with MAX4664ESE+T and MAX4666ESE+T. All three variants use the same physical layout and terminal functions (e.g., IN1–IN4, COM1–COM4, NO1–NO4), differing only in internal switch configuration (NO-only for MAX4665, NC-only for MAX4664, mixed for MAX4666). This allows drop-in substitution where functional requirements align.

What is the maximum signal voltage the MAX4665ESE+T can handle?

The MAX4665ESE+T supports rail-to-rail analog signals from V− to V+. With ±15V dual supplies, this means ±15V; with +12V single supply and V− = GND, it handles 0V to +12V. Absolute Maximum Ratings confirm V+ to V− may be up to +44V, but the usable signal range remains bounded by the applied supply rails - not exceeding V− or V+ at any pin, per internal diode clamping behavior.