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. It serves as a high-reliability reed relay replacement in precision data acquisition and automated test equipment.

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

Technical Context

The MAX4700CAE+ implements complementary MOSFET-based SPST switching with separate V+ and V− analog rails and an isolated VL logic supply, enabling robust operation across wide voltage ranges while maintaining input logic compatibility. Its internal architecture enforces strict break-before-make timing between the NC and NO switches - a deterministic feature critical for preventing momentary short-circuits in multiplexer or signal routing applications.

On-resistance flatness (≤0.3Ω over full signal range) and tight channel-to-channel R_ON matching (≤0.3Ω) are production-guaranteed, not typical-only specs, supporting low-distortion signal paths in sample-and-hold and communication systems. ESD protection exceeds 2 kV per Method 3015.7, and all analog pins tolerate signals beyond supply rails via integrated clamping diodes.

Key Specifications

Pinout & Package

MAX4700CAE+ is housed in a 16-pin SSOP (Shrink Small Outline Package) with 0.635 mm pitch, JEDEC MO-137AC compliant, body size 4.9 mm × 6.0 mm × 1.75 mm. Pin 1 is marked by a dot or beveled corner; device orientation follows standard SSOP top-view convention.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADG1419BRUZ and TS5A23159DRCR, the MAX4700CAE+ uniquely supports dual-supply operation, guarantees break-before-make timing, and delivers sub-5 nA leakage at +85°C - making it the only option qualified for precision ±15V automatic test equipment and high-reliability data acquisition.

Availability

MAX4700CAE+ is available at Aetrix Electronics and suitable for automated test equipment, industrial data acquisition systems, and telecom signal routing applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

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) designs precision analog, mixed-signal, and power management ICs for industrial, automotive, communications, and computing markets.

The MAX4700 belongs to Maxim's high-performance analog switch family engineered specifically for reed relay replacement and low-distortion signal routing in demanding test and measurement systems.

FAQ

What is the guaranteed break-before-make timing specification for MAX4700CAE+?

The MAX4700CAE+ guarantees a break-before-make interval of 5 ns minimum to 125 ns maximum under dual-supply conditions (V+ = +15V, V− = −15V, TA = TMIN to TMAX). This parameter is explicitly specified and production-tested for the MAX4700 variant - unlike MAX4680/MAX4690 - and ensures no overlap between NC1 and NO2 conduction states during switching transitions. The timing is measured from 50% of IN1 falling edge to 50% of IN2 rising edge, per Figure 3 in the datasheet.

Does MAX4700CAE+ support true rail-to-rail analog signal operation?

Yes, the MAX4700CAE+ supports rail-to-rail analog signal operation: input signals may swing from V− to V+ without clipping or increased distortion. This is enabled by its fully enhanced CMOS process and internal level-shifting circuitry. For example, with V+ = +15V and V− = −15V, analog signals from −15V to +15V pass through both switches with ≤1.25Ω on-resistance and ≤0.3Ω flatness - confirmed in Electrical Characteristics tables and Typical Operating Characteristics plots (TOC01–TOC04).

Can MAX4700CAE+ operate from a single +12V supply?

Yes, the MAX4700CAE+ operates from a +4.5V to +36V single supply. When using single-supply configuration, connect V− to GND (Pin 4), set V+ to +12V (Pin 13), and apply analog signals between GND and +12V. All specifications - including 1.25Ω max R_ON, 5 nA max off-leakage at +85°C, and 2.4V/0.8V logic thresholds - are validated for single-supply operation per the "Electrical Characteristics–Single Supply" table on page 4 of the datasheet.

What is the purpose of the VL pin on MAX4700CAE+?

The VL pin on MAX4700CAE+ provides an independent logic supply input (2.4V to 5.5V) that decouples digital control signaling from analog supply noise. This allows interfacing with 3.3V or 5V microcontrollers while the analog section runs on ±15V - eliminating level shifters and preventing digital switching noise from coupling into sensitive analog paths. VL is internally regulated and referenced to GND, and its voltage directly sets the logic threshold (VIN_H = 2.4V min, VIN_L = 0.8V max) regardless of V+/V− values.

Is MAX4700CAE+ pin-compatible with other variants in the MAX4680/MAX4690/MAX4700 family?

Yes, MAX4700CAE+ shares identical 16-pin SSOP pinout and footprint with MAX4680CAE+ and MAX4690CAE+, including V+, V−, GND, COM1/COM2, NC1/NO2, IN1/IN2, VL, and N.C. terminals. However, internal switch configuration differs: MAX4700CAE+ integrates one NC and one NO switch with guaranteed break-before-make, whereas MAX4680CAE+ has two NC switches and MAX4690CAE+ has two NO switches. No PCB redesign is needed when substituting within the same package variant, but logic control sequencing must align with the specific switch type.