Analog Devices Inc./Maxim Integrated MAX4622ESE

Overview

The MAX4622ESE from Maxim Integrated is a precision dual SPDT analog switch with two normally closed (NC) and two normally open (NO) poles, 5Ω max on-resistance, guaranteed 0.5Ω max R_ON match between channels, and break-before-make operation - designed for low-distortion signal routing in test equipment and communication systems.

For engineers reviewing the MAX4622ESE datasheet, MAX4622ESE pinout, MAX4622ESE application, or MAX4622ESE equivalent, this page delivers verified electrical specs, SOIC-16 pin mapping, real-world use cases in avionics and audio routing, and validated alternatives with documented functional and supply-voltage differences.

Technical Context

The MAX4622ESE implements CMOS-based dual SPDT switching with rail-to-rail analog signal handling across ±4.5V to ±18V bipolar or +4.5V to +36V single supplies. Its internal logic ensures guaranteed break-before-make timing (t_D ≤ 75ns typ) to prevent channel shorting during state transitions.

It features matched on-resistance flatness (∆R_ON ≤ 0.5Ω max over full signal range), sub-5nA off-leakage at +85°C, and fast switching (t_ON < 250ns, t_OFF < 200ns), enabling high-fidelity signal integrity in multiplexed data-acquisition and reed-relay-replacement applications.

Key Specifications

Pinout & Package

MAX4622ESE is housed in a 16-pin narrow SOIC (SO/DIP) package with exposed pad not present; pinout conforms to standard Maxim analog switch layout with dual independent SPDT sections sharing common supply and logic pins.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX4622CSE, the MAX4622ESE extends operational reliability to –40°C to +85°C while retaining identical electrical performance and pinout; versus ADG408BRUZ, it provides dedicated dual SPDT topology with guaranteed break-before-make and 9× lower on-resistance - making it superior for precision, timing-sensitive, and ruggedized analog routing.

Availability

MAX4622ESE is available at Aetrix Electronics and suitable for test equipment, avionics signal management, and reed relay replacement requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MAX4622ESE 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 high-performance analog, mixed-signal, and power-management ICs for industrial, automotive, communications, and computing markets.

The MAX462x family targets precision analog switching applications demanding low on-resistance, tight channel matching, and robust operation across wide supply and temperature ranges - specifically engineered for replacing mechanical relays and upgrading legacy DG-series switches.

FAQ

What is the maximum supply voltage rating for MAX4622ESE?

The MAX4622ESE supports a single positive supply up to +36V or bipolar supplies up to ±18V. Absolute maximum ratings specify V+ to GND ≤ +44V and V− to GND ≥ −44V, but continuous operation must remain within the specified ranges to ensure reliability and parameter compliance. Exceeding ±18V or +36V voids guaranteed performance per the datasheet.

Does MAX4622ESE require external pull-up resistors on its logic inputs?

No, MAX4622ESE logic inputs (IN1, IN2) are CMOS/TTL compatible with guaranteed thresholds of VINH ≥ +2.4V and VINL ≤ +0.8V at VL = +5V, and feature low input current (±0.5µA max). External pull-ups are unnecessary unless interfacing with open-drain controllers or implementing specific noise immunity schemes beyond standard operation.

Is MAX4622ESE pin-compatible with the DG403 analog switch?

Yes, MAX4622ESE is explicitly specified as a pin-compatible replacement for the DG403, sharing identical SOIC-16 pinout and connection topology. This allows direct substitution in existing DG403-based designs without PCB modification, while delivering improved on-resistance, leakage, and switching speed.

What is the guaranteed on-resistance match between the two SPDT channels of MAX4622ESE?

The MAX4622ESE guarantees ∆R_ON ≤ 0.5Ω maximum between its two SPDT channels across the full operating temperature range (–40°C to +85°C) and analog signal range (V− to V+). This specification is tested and ensured per datasheet Note 4 (ΔRON = RON_MAX − RON_MIN), critical for matched-gain applications like differential signal routing.

Can MAX4622ESE operate with VL = 3.3V while using ±15V analog supplies?

Yes, MAX4622ESE supports VL from +2.7V to +5.5V independently of analog supply rails. With VL = +3.3V and V+ = +15V/V− = −15V, logic inputs accept 0V/3.3V levels and maintain full CMOS compatibility, while analog channels retain rail-to-rail switching capability from −15V to +15V - enabling mixed-voltage system integration.