Analog Devices Inc./Maxim Integrated MAX4666CPE

Overview

MAX4666CPE from Maxim Integrated is a quad SPST analog switch with two normally closed (NC) and two normally open (NO) channels, guaranteeing break-before-make switching, 5Ω max on-resistance, ±15V dual-supply or +12V single-supply operation, and rail-to-rail analog signal handling - ideal for precision audio routing and automated test equipment signal path control.

For engineers reviewing the MAX4666CPE datasheet, MAX4666CPE pinout, MAX4666CPE application, or MAX4666CPE equivalent, this page delivers verified electrical specs, terminal roles, real-world use cases, and validated alternatives - all grounded in Maxim's official 19-1504 datasheet and ordering documentation.

Technical Context

The MAX4666CPE implements CMOS-based SPST switching with independent logic-controlled IN1–IN4 inputs driving four isolated analog paths. Its internal architecture enforces guaranteed break-before-make timing (≤30ns typical) between complementary NC/NO pairs (switches 1&4, 2&3), preventing momentary short-circuits during state transitions.

It supports wide analog signal ranges (±10V with dual ±15V supplies; 0–10V with +12V single supply), maintains <0.5Ω on-resistance matching across channels, and exhibits flat on-resistance (<0.5Ω variation) over its full signal range - critical for low-distortion multiplexing in measurement and audio systems.

Key Specifications

Pinout & Package

MAX4666CPE uses a 16-pin plastic DIP package (0.3-inch width), RoHS-compliant, with through-hole mounting and standard JEDEC MO-011AC footprint.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADG466BRZ and TS5A3157DCKR, the MAX4666CPE uniquely combines guaranteed break-before-make timing, dual-supply flexibility, and sub-5Ω on-resistance - making it the only choice for safety-critical, high-fidelity, or wide-rail analog switching where channel coordination and signal integrity are non-negotiable.

Availability

MAX4666CPE is available at Aetrix Electronics and suitable for automatic test equipment, avionics signal conditioning, professional audio routing, and reed relay replacement applications requiring stable component supply, long-term obsolescence management, and traceable sourcing.

Supply support for MAX4666CPE 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 markets, with emphasis on high-reliability, low-noise, and wide-supply solutions.

The MAX4666 belongs to Maxim's high-performance analog switch family, engineered specifically for replacing electromechanical relays and enabling reconfigurable signal paths in test, measurement, and aerospace systems where timing integrity and signal fidelity are paramount.

FAQ

What is the guaranteed break-before-make timing specification for MAX4666CPE?

The MAX4666CPE guarantees break-before-make timing of ≤30ns (typical) between complementary NC/NO pairs (channels 1&4 and 2&3). This is explicitly specified in the "Switch Dynamic Characteristics" table of the datasheet (Rev 0, 7/99, p.3) and ensures no overlap in conduction states during switching - a key differentiator versus generic analog switches. The MAX4666CPE achieves this via internal timing control circuitry, not just layout or process variation.

Can MAX4666CPE operate from a single +5V supply?

No - the MAX4666CPE requires a minimum single-supply voltage of +4.5V and supports up to +36V, but its analog signal range is limited under low-voltage operation. At +5V supply, the guaranteed rail-to-rail performance degrades: the datasheet specifies input voltage range as V− to V+, meaning only 0–5V analog swing is supported, and on-resistance rises significantly (typ. 8Ω at V+ = +5V). For full 5Ω spec compliance and rail-to-rail operation, +12V or dual ±15V is recommended.

Does MAX4666CPE support negative analog signals with a single supply?

No - with a single supply (e.g., V+ = +12V, V− = GND), the MAX4666CPE only supports 0V to +12V analog signals on COM/NO/NC pins. Negative signal handling requires dual-supply configuration (e.g., V+ = +15V, V− = −15V), which enables true ±15V rail-to-rail operation. The internal structure lacks level-shifting or charge-pump circuitry to accommodate negative inputs under single-supply bias.

What is the maximum continuous current rating per switch in MAX4666CPE?

The MAX4666CPE supports ±100mA continuous current per COM/NO/NC terminal, as stated in the Absolute Maximum Ratings table (p.2). This applies across the full temperature range (0°C to +70°C for the CPE grade). Exceeding this risks thermal runaway or metallization failure. For pulsed operation (1ms, 10% duty cycle), peak current may reach ±300mA - but sustained loads must remain within the ±100mA limit to ensure reliability and meet datasheet lifetime specifications.

Is MAX4666CPE pin-compatible with MAX4664CPE or MAX4665CPE?

Yes - MAX4666CPE shares identical pinout, package (16-pin PDIP), and supply interface with MAX4664CPE and MAX4665CPE. All three devices use the same SO/DIP footprint and terminal assignments (INx, COMx, NCx/NOx, V+, V−, GND, VL). However, logic behavior differs: MAX4664CPE has four NC switches, MAX4665CPE has four NO switches, and MAX4666CPE has two NC + two NO with break-before-make. Swapping requires firmware/control logic updates to match channel polarity.