Analog Devices Inc./Maxim Integrated MAX4600CAE+T

Overview

The MAX4600CAE+T from Maxim Integrated is a dual SPST CMOS analog switch with one normally closed (NC) and one normally open (NO) channel, designed for rail-to-rail signal routing in precision analog systems. It delivers 1.25Ω max on-resistance, 0.25Ω max R_ON match between channels, and 0.3Ω max R_ON flatness over ±10V signal range, operating from +4.5V to +36V single supply or ±4.5V to ±20V dual supplies. It is used in automatic test equipment for reed relay replacement.

For engineers reviewing the MAX4600CAE+T datasheet, MAX4600CAE+T pinout, MAX4600CAE+T application, or MAX4600CAE+T equivalent, key selection criteria include guaranteed R_ON matching, TTL/CMOS-compatible logic thresholds at +12V supply, ESD protection >2kV, and verified performance across -40°C to +85°C temperature range.

Technical Context

This device implements two independent SPST switches in a single monolithic CMOS process: Switch 1 is NC (closed when IN1 = 0), Switch 2 is NO (closed when IN2 = 1). Control logic uses fixed TTL/CMOS thresholds (V_{IN_H} = 2.4V, V_{IN_L} = 0.8V) referenced to GND, with separate VL pin for logic supply decoupling.

It supports true rail-to-rail analog signal handling (V_COM, V_NO, V_NC from V− to V+), with internal protection diodes clamping signals beyond supply rails. Off-leakage is limited to 2.5nA max at +85°C, and charge injection is 40pC typical-critical for sample-and-hold and multiplexer applications requiring low signal corruption.

Key Specifications

Pinout & Package

MAX4600CAE+T is housed in a 16-pin SSOP package (5.3mm wide), RoHS-compliant and moisture-sensitive level 1. Pin layout supports compact PCB routing with dedicated analog and logic supply pins.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADG1419BRUZ and TS5A3159DBVR, the MAX4600CAE+T uniquely supports both single- and dual-supply operation with verified NC/NO pairing, making it the only option qualified for reed relay replacement in mixed-rail test infrastructure.

Availability

MAX4600CAE+T is available at Aetrix Electronics and suitable for automatic test equipment, communications signal routing, and industrial sensor interface applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for MAX4600CAE+T 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 U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, automotive, and communications markets.

The MAX4600CAE+T belongs to Maxim's precision analog switch product line, engineered specifically for low-distortion, high-reliability signal routing in automated test and telecom infrastructure where mechanical relay limitations-speed, wear, and size-are unacceptable.

FAQ

What is the maximum operating temperature range for the MAX4600CAE+T?

The MAX4600CAE+T is specified for commercial temperature range: 0°C to +70°C. Its extended-grade variant MAX4600EAE+T operates from -40°C to +85°C. Both versions maintain full electrical specifications-including 1.25Ω R_ON max and 2.5nA off-leakage at hot temperature-within their respective ranges. Thermal derating is not required below +70°C for the CAE version.

Does the MAX4600CAE+T support dual-supply operation?

Yes, the MAX4600CAE+T supports dual-supply operation from ±4.5V to ±20V. When used in dual-supply mode, V+ connects to the positive rail, V− to the negative rail, and GND serves as the reference. This configuration enables true bipolar signal switching (e.g., ±10V) with rail-to-rail capability. The device also operates from a single +4.5V to +36V supply with V− tied to GND.

How is the logic input polarity defined for each switch in the MAX4600CAE+T?

In the MAX4600CAE+T, Switch 1 (NC1/COM1) is normally closed: it conducts when IN1 = 0V (logic low) and opens when IN1 = 2.4V (logic high). Switch 2 (NO2/COM2) is normally open: it conducts when IN2 = 2.4V (logic high) and opens when IN2 = 0.8V (logic low). This complementary configuration enables fail-safe default paths and active-controlled signal routing in the same package.

What is the purpose of the VL pin on the MAX4600CAE+T?

VL is the logic supply input pin that powers the internal digital control circuitry independently from the analog supplies (V+ and V−). It must be connected to a stable +5V supply (or compatible logic rail) and decoupled with a 0.1µF capacitor to GND. Separating VL from analog supplies reduces digital switching noise coupling into sensitive analog paths-critical for maintaining low crosstalk (-65dB) and off-isolation (-53dB).

Can the MAX4600CAE+T replace mechanical relays in high-cycle applications?

Yes-the MAX4600CAE+T is explicitly designed as a solid-state reed relay replacement. With 160ns turn-on time, zero contact bounce, no wear-out mechanism, and >10⁹ operational cycles, it outperforms electromechanical relays in speed, reliability, and longevity. Its 1.25Ω R_ON and 2.5nA leakage meet or exceed typical reed relay specs, while its SSOP package occupies <5% of the board area of a standard reed relay.