Analog Devices Inc./Maxim Integrated MAX4700CAE

Overview

MAX4700CAE from Maxim Integrated is a dual SPST CMOS analog switch with one normally closed (NC) and one normally open (NO) channel, featuring guaranteed break-before-make switching, 1.25Ω max on-resistance, 0.3Ω max R_ON match between channels, and rail-to-rail signal handling up to ±20V dual supply or +36V single supply - ideal for precision data acquisition and reed relay replacement in automated test equipment.

For engineers reviewing the MAX4700CAE datasheet, MAX4700CAE pinout, MAX4700CAE application, or MAX4700CAE equivalent, key selection criteria include verified break-before-make timing (5–125 ns), low charge injection (±60 pC), <1 nA off-leakage at +85°C, and TTL/CMOS-compatible control inputs with separate logic supply (VL) pin enabling mixed-voltage system interfacing.

Technical Context

The MAX4700CAE implements complementary MOSFET-based SPST switching with independent control of NC and NO paths, where IN1 controls COM1–NC1/NO1 and IN2 controls COM2–NC2/NO2. Its break-before-make architecture ensures no overlap during state transitions, validated by t_OPEN = 5–125 ns under dual-supply conditions.

It supports wide analog voltage ranges: ±20V dual supply (V+ to V− ≤ 44V) or +4.5V to +36V single supply (V− = GND), with rail-to-rail signal capability across the full range. The dedicated VL pin decouples logic-level compatibility from analog supply rails, allowing 3V/5V logic control while operating with high-voltage analog signals.

Key Specifications

Pinout & Package

MAX4700CAE is housed in a 16-pin SSOP (Shrink Small Outline Package) with 0.65 mm pitch, JEDEC MO-137AC compliant, footprint compatible with SOIC-16 but 30% smaller area.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADG1419BRUZ and TS5A23157DGSR, the MAX4700CAE uniquely supports true bipolar ±20V operation with guaranteed break-before-make and a dedicated VL pin - making it the only option among the three qualified for high-reliability, mixed-rail automatic test equipment and telecom line card designs.

Availability

MAX4700CAE is available at Aetrix Electronics and suitable for reed relay replacement, data acquisition systems, sample-and-hold circuits, communication system signal routing, and PBX/PABX infrastructure requiring stable component supply across extended temperature and voltage ranges.

Supply support for MAX4700CAE 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 fabless semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and computing markets.

The MAX4700CAE belongs to Maxim's precision analog switch product line, engineered for high-voltage, low-distortion signal routing in automated test equipment and instrumentation where reliability, timing integrity, and rail-to-rail performance are mandatory.

FAQ

What is the guaranteed break-before-make time for MAX4700CAE?

The MAX4700CAE guarantees a break-before-make interval (t_OPEN) of 5 ns minimum to 125 ns maximum under dual-supply conditions (V+ = +15V, V− = −15V). This specification is tested and ensured across the full operating temperature range (0°C to +70°C) and is intrinsic to the MAX4700CAE's internal control architecture - no external timing components are required to achieve this behavior.

Can MAX4700CAE operate with a single +24V supply?

Yes, the MAX4700CAE supports single-supply operation from +4.5V to +36V. When using +24V, connect V− to GND, configure VL for 3V or 5V logic, and ensure all analog signals remain within the 0V to +24V range. On-resistance remains ≤1.25Ω and off-leakage stays below 0.5 nA at +25°C - fully validated per the MAX4700CAE electrical characteristics table for single-supply mode.

Does MAX4700CAE require external protection diodes for overvoltage?

No - the MAX4700CAE integrates internal ESD protection diodes rated to >2kV HBM and features robust absolute maximum ratings (e.g., V+ to GND = −0.3V to +44V). External diodes are only recommended if supply sequencing cannot be controlled (e.g., hot-swap environments), per Maxim's Application Note 1513. In standard operation, the MAX4700CAE operates safely without added protection components.

What is the maximum continuous current rating per switch channel of MAX4700CAE?

The MAX4700CAE supports ±200mA continuous current through each COM/NO/NC terminal, verified across the full temperature range and supply conditions. This rating applies independently to both channels - meaning COM1 and COM2 can each carry 200mA simultaneously without derating, provided package thermal limits (571mW for SSOP) are observed and PCB copper area meets JEDEC standards.

How does the VL pin function in MAX4700CAE, and what voltage range is supported?

The VL pin on the MAX4700CAE provides an independent logic supply reference, accepting 2.7V to 5.5V to ensure TTL- and CMOS-compatible input thresholds regardless of analog supply voltage. This allows the MAX4700CAE to accept 3.3V logic control signals while switching ±15V analog signals - a capability confirmed in the MAX4700CAE truth tables and functional diagrams, eliminating level shifters in mixed-voltage designs.