Analog Devices Inc./Maxim Integrated MAX4590CAE

Overview

MAX4590CAE from Maxim Integrated is a dual SPST normally open (NO) CMOS analog switch with 1.25Ω max on-resistance, ±4.5V to ±20V dual-supply or +4.5V to +36V single-supply operation, and rail-to-rail signal handling up to ±10V. It delivers matched on-resistance (≤0.25Ω), flat on-resistance (≤0.3Ω), and <2.5nA off-leakage at +85°C, making it ideal for reed relay replacement in automatic test equipment.

For engineers reviewing the MAX4590CAE datasheet, MAX4590CAE pinout, MAX4590CAE application, or MAX4590CAE equivalent, key selection criteria include guaranteed R_ON matching across channels, TTL/CMOS-compatible logic thresholds (+0.8V/+2.4V), ESD protection >2kV, and 16-pin SSOP packaging for space-constrained PCB layouts.

Technical Context

The MAX4590CAE implements two independent NO switches controlled by separate digital inputs (IN1, IN2), each connecting COMx to NOx when logic high. Its CMOS architecture enables low charge injection (40pC typical) and low crosstalk (–65dB), critical for precision signal routing in communication systems and PBX infrastructure.

It supports dual-supply operation with V+ and V– rails defining the analog signal range, while VL provides a dedicated +5V logic supply. Input voltage range extends from V– to V+, and internal diode clamping protects against overvoltage transients-though external diodes are recommended if sequencing cannot ensure V+ powers first.

Key Specifications

Pinout & Package

MAX4590CAE is housed in a 16-pin SSOP (Shrink Small Outline Package) with 0.65mm lead pitch, 5.3mm body width, and JEDEC MO-150 compliance. The package supports surface-mount assembly and thermal dissipation up to 571mW at +70°C ambient.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADG1419BRUZ and TS5A23159DRCR, MAX4590CAE uniquely balances wide supply flexibility (±4.5V to ±20V), guaranteed R_ON matching, and dedicated VL logic supply - making it optimal for industrial test and telecom infrastructure where signal fidelity and supply robustness are co-critical.

Availability

MAX4590CAE is available at Aetrix Electronics and suitable for automatic test equipment, PBX infrastructure, and communication systems requiring stable component supply, long-term manufacturability, and guaranteed parametric performance across temperature.

Supply support for MAX4590CAE 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 semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and computing markets.

The MAX4580/MAX4590/MAX4600 family was designed specifically for high-fidelity analog signal routing in mission-critical test and telecom equipment, emphasizing low distortion, precise channel matching, and robust supply flexibility.

FAQ

What is the maximum analog signal voltage range supported by the MAX4590CAE?

The MAX4590CAE supports rail-to-rail analog signals from V– to V+, with absolute maximum ratings of ±44V across V+ and V–. In standard operation, it handles ±10V signals with guaranteed 1.25Ω max on-resistance and 0.3Ω max R_ON flatness. For single-supply use, V– is tied to GND and signals swing from 0V to V+ (up to +36V).

Does the MAX4590CAE require external level-shifting for TTL/CMOS logic inputs?

No, the MAX4590CAE does not require external level-shifting. Its logic inputs have guaranteed +0.8V low and +2.4V high thresholds, ensuring direct compatibility with TTL and CMOS logic families when operated from +12V single supply or ±15V dual supplies - as confirmed in the Electrical Characteristics table.

How is the VL pin used in the MAX4590CAE, and what happens if it is left unconnected?

The VL pin on the MAX4590CAE supplies +5V to the internal logic circuitry and must be externally decoupled. Leaving VL unconnected disables logic functionality and prevents proper switching. It is not internally tied to V+ or V–, and operation outside the +5V ±10% range risks timing violations or latch-up.

Can the MAX4590CAE be used in a single-supply configuration with V– grounded?

Yes, the MAX4590CAE supports single-supply operation with V– connected to GND. In this mode, analog signals swing from 0V to V+ (up to +36V), and the device maintains 1.25Ω max R_ON, 2.5nA max off-leakage at +85°C, and TTL/CMOS-compatible logic thresholds - all verified in the Single-Supply Electrical Characteristics section.

What is the thermal derating behavior of the MAX4590CAE in its 16-pin SSOP package?

The MAX4590CAE in 16-pin SSOP has a thermal derating factor of 7.1mW/°C above +70°C ambient, with a maximum continuous power dissipation of 571mW at +70°C. This means usable power drops linearly to ~428mW at +90°C ambient, requiring careful layout with thermal vias and copper pour for sustained high-current operation (>100mA per channel).