Analog Devices Inc./Maxim Integrated MAX4666CPE+

Overview

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

For engineers reviewing the MAX4666CPE+ datasheet, MAX4666CPE+ pinout, MAX4666CPE+ application, or MAX4666CPE+ equivalent, key selection criteria include guaranteed break-before-make timing, channel-matched on-resistance (≤0.5Ω), low off-leakage (≤5nA at +85°C), and TTL/CMOS-compatible logic thresholds across wide supply ranges.

Technical Context

The MAX4666CPE+ implements four independent CMOS SPST switches in a single 16-pin plastic DIP package, with dedicated IN/COM/NO/NC terminals per channel and separate V+, V−, VL, and GND pins enabling flexible biasing. Its internal architecture ensures matched R_ON and flat R_ON over the full ±10V analog signal range.

Break-before-make timing is guaranteed at ≤30ns (dual supply) or ≤125ns (single supply), preventing momentary short-circuit during state transitions. All digital inputs meet TTL/CMOS thresholds (V_{IN_L} ≤ 0.8V, V_{IN_H} ≥ 2.4V) under ±15V or +12V supply conditions, eliminating level-shifting requirements.

Key Specifications

Pinout & Package

MAX4666CPE+ uses a 16-pin plastic DIP (Dual In-line Package) with 0.3-inch body width and standard through-hole mounting. Pin spacing is 0.1 inch, compatible with industry-standard PCB footprints and socketing.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX4666CPE+, the MAX4666CSE+ offers identical performance in a smaller footprint but mandates SMT assembly, while the ADG444BRZ lacks NC/NO flexibility and break-before-make assurance - making MAX4666CPE+ uniquely suited for safety-critical relay replacement and mixed-configuration routing.

Availability

MAX4666CPE+ is available at Aetrix Electronics and suitable for PBX systems, automated test equipment, and avionics signal conditioning 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 applications.

The MAX4664/MAX4665/MAX4666 family delivers high-voltage, low-distortion analog switching for systems replacing electromechanical relays - optimized for reliability, signal fidelity, and wide supply flexibility.

FAQ

What is the maximum analog signal voltage range supported by MAX4666CPE+?

The MAX4666CPE+ supports rail-to-rail analog signals from V− to V+, enabling operation across ±15V dual supplies or 0V to +12V single supplies. With V+ = +15V and V− = −15V, the full signal range is −15V to +15V; with V+ = +12V and V− = GND, it is 0V to +12V. Absolute maximum ratings limit V+ to +44V and V− to −44V relative to GND.

Does MAX4666CPE+ require external level-shifting when driven by a 3.3V microcontroller?

No, MAX4666CPE+ does not require external level-shifting. Its digital inputs accept TTL/CMOS logic thresholds (V_{IN_L} ≤ 0.8V, V_{IN_H} ≥ 2.4V) and operate correctly with 3.3V logic driving IN1–IN4, provided VL is supplied with +5V and V+ is ≥ +4.5V. The logic interface remains compatible across single- and dual-supply configurations.

How is break-before-make timing guaranteed in MAX4666CPE+?

Break-before-make timing in MAX4666CPE+ is guaranteed by internal circuit design and 100% tested at 30ns max under dual-supply conditions (V+ = +15V, V− = −15V). This ensures the NC path opens before the NO path closes during logic transitions, preventing transient short-circuits - a requirement explicitly validated for the MAX4666 variant per its truth table and electrical specifications.

Can MAX4666CPE+ be used with a single +5V supply?

No, MAX4666CPE+ cannot operate reliably with only a +5V analog supply. Its minimum single-supply voltage is +4.5V, but typical characterization and guaranteed R_ON performance begin at +12V. At +5V, on-resistance exceeds 8Ω and leakage increases significantly; the device is specified and tested for stable operation from +12V to +36V single supply or ±15V dual supply.

What is the thermal performance of MAX4666CPE+ in plastic DIP packaging?

MAX4666CPE+ in 16-pin plastic DIP has a power dissipation limit of 842mW at +70°C ambient, derating by 10.53mW/°C above that temperature. Junction-to-ambient thermal resistance (θ_JA) is approximately 95°C/W. For continuous 100mA per channel operation, board-level thermal design must ensure case temperature stays below +85°C to maintain parametric guarantees across the full industrial temperature range.