Analog Devices Inc./Maxim Integrated MAX4666CSE+

Overview

MAX4666CSE+ from Maxim Integrated is a quad SPST analog switch IC with two normally closed (NC) and two normally open (NO) channels, guaranteeing break-before-make switching. It features 5Ω max on-resistance, 0.5Ω max R_ON match between channels, and rail-to-rail signal handling across ±4.5V to ±20V dual or +4.5V to +36V single supply. It is used in PBX systems, test equipment, and audio-signal routing where low distortion and reliable mechanical relay replacement are required.

For engineers reviewing the MAX4666CSE+ datasheet, MAX4666CSE+ pinout, MAX4666CSE+ application, or MAX4666CSE+ equivalent, key selection criteria include guaranteed break-before-make timing, matched on-resistance flatness over signal range, TTL/CMOS-compatible logic thresholds, and ESD protection >2kV - all critical for high-fidelity analog switching in industrial and communications infrastructure.

Technical Context

The MAX4666CSE+ implements a CMOS-based quad SPST architecture with independent control of two NC and two NO switches, each with dedicated INx inputs and shared V+, V−, VL, and GND. Its break-before-make behavior is guaranteed-not inferred-across temperature and supply conditions, ensuring no transient shorting during channel transitions.

It supports both single-supply (+4.5V to +36V) and dual-supply (±4.5V to ±20V) operation, with logic inputs referenced to VL and compatible with TTL/CMOS thresholds (+0.8V low, +2.4V high). Analog signal range extends rail-to-rail, and internal protection diodes clamp signals exceeding V+ or V−, limiting forward current per Absolute Maximum Ratings.

Key Specifications

Pinout & Package

MAX4666CSE+ is housed in a 16-pin narrow SOIC (SOIC-N) package, 3.9mm wide, with standard 1.27mm pitch and gull-wing leads. Pin 1 is marked by a beveled corner or dot; device orientation follows JEDEC MS-012.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADG466BRUZ and TS5A23157DGSR, the MAX4666CSE+ uniquely guarantees break-before-make timing and supports both ±15V and +24V operation - making it the only option qualified for reed-relay-replacement in high-voltage, safety-critical analog routing.

Availability

MAX4666CSE+ is available at Aetrix Electronics and suitable for PBX systems, automated test equipment, audio-signal routing, and avionics signal conditioning requiring stable component supply across extended temperature and voltage ranges.

Supply support for MAX4666CSE+ 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, communications, and computing applications.

The MAX4664/MAX4665/MAX4666 family was developed specifically for high-fidelity, low-distortion analog switching in automatic test equipment and telecom infrastructure - emphasizing matched R_ON, rail-to-rail operation, and guaranteed switching sequencing.

FAQ

What is the guaranteed break-before-make time specification for MAX4666CSE+?

The MAX4666CSE+ guarantees a break-before-make time delay of 5ns minimum to 30ns maximum under dual-supply conditions (V+ = +15V, V− = −15V, TA = TMIN to TMAX). This parameter is explicitly tested and specified in the Electrical Characteristics table - not derived from t_ON/t_OFF values - and ensures no overlap between NC and NO conduction paths during switching transitions in the MAX4666CSE+.

Can MAX4666CSE+ operate from a single +12V supply?

Yes, MAX4666CSE+ supports single-supply operation from +4.5V to +36V. When using +12V, connect V− to GND, set VL to +5V, and ensure logic inputs meet +0.8V low/+2.4V high thresholds. On-resistance remains ≤5Ω, off-leakage stays ≤5nA at +85°C, and rail-to-rail signal handling covers 0V to +12V - confirmed in the Single-Supply Electrical Characteristics table for MAX4666CSE+.

What is the maximum analog signal voltage range supported by MAX4666CSE+?

The MAX4666CSE+ supports rail-to-rail analog signals from V− to V+, meaning ±10V with ±15V supplies or 0V to +10V with +12V single supply. Absolute maximum ratings allow V+ to GND = −0.3V to +44V and V− to GND = +0.3V to −44V, but functional signal range is bounded by supply rails - verified in Input Voltage Range specifications for MAX4666CSE+ across temperature.

Does MAX4666CSE+ require external protection diodes for overvoltage?

No, MAX4666CSE+ includes internal protection diodes that clamp signals exceeding V+ or V−, as stated in Absolute Maximum Ratings Note 1. External diodes (e.g., Figure 1) are optional and only recommended if supply sequencing cannot be controlled - but they reduce usable analog range by one diode drop and are not needed for standard operation of MAX4666CSE+.

What package type is used for MAX4666CSE+ and is it RoHS-compliant?

MAX4666CSE+ uses a 16-pin narrow SOIC (SOIC-N) package, 3.9mm body width, with lead (Pb)-free terminations and RoHS-compliant finish. The "+" suffix in MAX4666CSE+ denotes lead-free, halogen-free, and RoHS-6 compliant construction - confirmed in Maxim's official ordering information and package drawings for MAX4666CSE+.