Analog Devices Inc./Maxim Integrated MAX4522EUE+T

Overview

MAX4522EUE+T from Maxim Integrated is a quad, low-voltage, normally open (NO) single-pole/single-throw (SPST) analog switch IC. It operates from ±2V to ±6V dual supplies or +2V to +12V single supply, delivers ≤100Ω on-resistance at ±5V, matches channel R_ON within 4Ω max, and handles rail-to-rail analog signals with <1nA off-leakage at +25°C. It is used in audio signal routing and battery-operated data acquisition systems.

For engineers reviewing the MAX4522EUE+T datasheet, MAX4522EUE+T pinout, MAX4522EUE+T application, or MAX4522EUE+T equivalent, key selection criteria include verified SPST NO configuration, TSSOP-16 package compatibility, dual/single-supply flexibility, leakage performance at temperature extremes, and pin compatibility with DG212.

Technical Context

The MAX4522EUE+T implements four independent CMOS transmission gates, each driven by logic-level translators that convert TTL/CMOS inputs into complementary V+ and V− gate drive signals. Its analog path consists of paralleled N- and P-channel MOSFETs with substrate tied to V+, enabling true rail-to-rail signal handling without ground reference.

ESD protection (>2kV per Method 3015.7) is achieved via internal diodes between each analog pin and V+/V−; leakage current flows exclusively to supply rails-not through GND or adjacent channels. The device exhibits flat on-resistance (≤12Ω variation over signal range) and low charge injection (≤5pC), critical for precision sampling and low-distortion audio switching.

Key Specifications

Pinout & Package

MAX4522EUE+T is housed in a 16-pin TSSOP package (4.4mm body width, 0.65mm pitch) with exposed pad connected to V+. Pin 1 is IN1; pins 2 and 5 are V− and GND respectively; pins 3, 6, 10, and 13 are COM1–COM4; pins 4, 7, 11, and 14 are NO1–NO4; pins 8, 9, 12, and 15 are unused (N.C.) or reserved for NC variants; pin 16 is V+.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX4522EUE+T, MAX4522ESE+ offers identical electrical performance in a larger, more manufacturable package, while ADG1422BRUZ trades off low-voltage R_ON for extended voltage range and speed-neither is pin-compatible, but both serve overlapping analog multiplexing roles.

Availability

MAX4522EUE+T is available at Aetrix Electronics and suitable for battery-operated equipment, data acquisition systems, and audio signal routing requiring stable component supply across industrial temperature grades.

Supply support for MAX4522EUE+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) designs precision analog and mixed-signal ICs for demanding industrial, medical, and communications applications.

The MAX452x family targets low-voltage, low-leakage analog switching in portable and high-fidelity systems-emphasizing rail-to-rail operation, sub-nA leakage, and seamless TTL/CMOS interfacing.

FAQ

What is the maximum supply voltage rating for MAX4522EUE+T?

The MAX4522EUE+T has an absolute maximum V+ to V− differential of 13.0V. For dual-supply operation, this limits usable ranges to ±2V–±6V (12V total). At ±6V with ±10% tolerance, the 13.2V peak exceeds rating-designers must verify supply tolerances or use ±5% rails. Single-supply operation supports up to +12V on V+, with V− tied to GND.

Is MAX4522EUE+T pin-compatible with DG212?

Yes, MAX4522EUE+T is explicitly designed as a pin-compatible replacement for DG212 in TSSOP-16. Pin functions-including IN1–IN4, COM1–COM4, NO1–NO4, V+, V−, GND, and N.C.-match identically. No PCB layout changes are needed when upgrading from DG212 to MAX4522EUE+T, provided the same temperature grade and supply configuration are maintained.

What is the analog signal range supported by MAX4522EUE+T?

The MAX4522EUE+T supports true rail-to-rail analog signals from V− to V+. With ±5V supplies, this means −5V to +5V; with +5V single supply (V− = GND), it supports 0V to +5V. Signals exceeding these limits forward-bias internal ESD diodes-clamping is possible but risks exceeding ±10mA continuous current rating, so external limiting is recommended for overvoltage conditions.

How does temperature affect off-leakage current in MAX4522EUE+T?

Off-leakage current in MAX4522EUE+T increases with temperature: ≤1nA at +25°C, ≤10nA at +85°C, and ≤100nA at +125°C (per datasheet Table, "C, E, M" temp grade). This exponential rise impacts high-impedance applications-e.g., a 10MΩ sensor node sees ~100µV offset at +85°C versus ~10µV at +25°C-so thermal design and guard traces are critical in precision systems.

Can MAX4522EUE+T operate from a +3.3V single supply?

Yes, MAX4522EUE+T is fully specified for +2.7V to +3.6V single-supply operation. At +3.3V, typical on-resistance is 260Ω (max 500Ω), turn-on time is 120–300ns, and logic thresholds remain TTL/CMOS-compatible (0.8V/2.4V). This makes it suitable for modern low-voltage microcontrollers and FPGAs without level shifters-though R_ON is higher than at ±5V, limiting use in <100Ω impedance paths.