Analog Devices Inc./Maxim Integrated MAX4662EAE

Overview

MAX4662EAE from Maxim Integrated is a quad single-pole single-throw (SPST) analog switch with four normally open (NO) channels, 2.5Ω maximum on-resistance, ±4.5V to ±20V dual-supply or +4.5V to +36V single-supply operation, and rail-to-rail analog signal handling up to ±10V. It delivers matched on-resistance (≤0.5Ω), flat on-resistance (≤0.5Ω), and <5nA off-leakage at +85°C - ideal for precision data acquisition and reed relay replacement in test equipment.

For engineers reviewing the MAX4662EAE datasheet, MAX4662EAE pinout, MAX4662EAE application, or MAX4662EAE equivalent, key selection criteria include guaranteed R_ON matching across channels, break-before-make absence (distinguishing it from MAX4663), TTL/CMOS-compatible logic inputs with separate VL supply, and SSOP-16 packaging for high-density analog routing.

Technical Context

The MAX4662EAE implements CMOS transmission-gate architecture with independent channel control, enabling simultaneous or staggered switching of four NO paths. Its dual-supply capability supports bipolar signal ranges (±10V), while the dedicated VL pin decouples logic-level compatibility from analog supply rails - critical for mixed-voltage system interfacing.

All four switches share identical electrical behavior: on-resistance remains stable across the full analog input range (–10V to +10V), exhibits ≤0.4Ω typical match between channels, and maintains ≤0.7Ω flatness. Off-isolation exceeds –56dB at 1MHz, and charge injection is limited to 20pC, minimizing transient errors in sample-and-hold and ADC front-end applications.

Key Specifications

Pinout & Package

MAX4662EAE is housed in a 16-pin shrink small-outline package (SSOP) with 0.65mm lead pitch, optimized for compact PCB layouts and thermal performance in industrial environments.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADG1412BRUZ and TS5A3157DCUR, the MAX4662EAE uniquely combines extended temperature qualification (–40°C to +85°C), rail-to-rail ±10V analog handling, and a decoupled VL pin - making it the only option among the three qualified for high-precision, mixed-supply industrial and avionics signal routing.

Availability

MAX4662EAE is available at Aetrix Electronics and suitable for reed relay replacement, test equipment multiplexing, and avionics sensor interface applications requiring stable component supply, long-term lifecycle support, and guaranteed extended-temperature performance.

Supply support for MAX4662EAE 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 semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and automotive markets.

The MAX4661/MAX4662/MAX4663 family was designed specifically for high-fidelity analog switching in automatic test equipment and precision instrumentation - emphasizing low R_ON, tight matching, and robust supply flexibility.

FAQ

What is the operating temperature range for MAX4662EAE?

The MAX4662EAE is specified for operation from –40°C to +85°C, validated across all electrical parameters including on-resistance, leakage, and switching times. This extended temperature grade makes it suitable for industrial control cabinets, outdoor test systems, and avionics environments where ambient conditions exceed commercial-grade limits. The 'E' suffix in MAX4662EAE explicitly denotes this –40°C to +85°C qualification.

Does MAX4662EAE support break-before-make switching?

No, MAX4662EAE does not feature break-before-make (BBM) switching. It is a quad normally open (NO) analog switch with independent channel control - each switch transitions directly between open and closed states without guaranteed dead-time. BBM functionality is exclusive to the MAX4663 variant, which integrates internal timing to prevent momentary shorting during state changes. For applications requiring BBM, MAX4662EAE must be paired with external control logic or replaced with MAX4663EAE.

Can MAX4662EAE operate from a single 5V supply?

Yes, MAX4662EAE supports single-supply operation from +4.5V to +36V. With V+ = +5V and V− tied to GND, it handles rail-to-rail analog signals from 0V to +5V. Logic inputs remain compatible via the VL pin, which can be set to 3.3V or 5V to match the host controller. However, analog signal swing is limited to the supply rails - unlike dual-supply mode, no negative voltage excursion is possible.

What is the maximum continuous current rating per switch in MAX4662EAE?

The MAX4662EAE supports ±200mA continuous current through each COM–NO path, verified across the full operating temperature range. This rating applies under worst-case thermal conditions (T_A = +70°C) and assumes proper PCB copper pour for heat dissipation. Exceeding ±200mA risks thermal runaway due to I²R heating in the 2.5Ω channel - design margins should keep peak currents below 150mA for sustained operation.

How does the separate VL pin benefit system design with MAX4662EAE?

The VL pin on MAX4662EAE decouples logic threshold definition from analog supply rails, allowing direct interface with 1.8V, 3.3V, or 5V microcontrollers regardless of whether V+ is set to +12V, +24V, or ±15V. This eliminates level-shifters, reduces BOM count, and prevents logic misstates caused by supply sequencing mismatches - a key advantage over analog switches that tie input thresholds to V+ or GND.