Analog Devices Inc./Maxim Integrated MAX4590EAE

Overview

MAX4590EAE from Maxim Integrated is a dual normally open (NO) SPST 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 - ideal for precision test equipment signal routing.

For engineers reviewing the MAX4590EAE datasheet, MAX4590EAE pinout, MAX4590EAE application, or MAX4590EAE equivalent, key selection criteria include guaranteed R_ON matching across channels, TTL/CMOS-compatible logic thresholds (+0.8V/+2.4V), ESD protection >2kV, and SSOP-16 packaging for high-density PCB layouts.

Technical Context

The MAX4590EAE implements dual independent SPST switches with normally open topology, each controlled by a dedicated CMOS logic input (IN1/IN2) referenced to VL. Its charge-injection performance (40pC typ) and low crosstalk (–65dB) support high-fidelity analog multiplexing in automated test systems.

It operates across –40°C to +85°C using either dual supplies (±4.5V to ±20V) or single supply (+4.5V to +36V), with logic inputs tolerant of TTL/CMOS levels regardless of supply configuration. Internal protection diodes clamp signals exceeding V+ or V–, enabling robust interface with external circuitry without added components.

Key Specifications

Pinout & Package

MAX4590EAE is housed in a 16-pin SSOP package (5.3mm width), RoHS-compliant, with exposed pad not electrically connected. Pin pitch is 0.65mm; body dimensions are 5.3 × 6.2 mm.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADG1419BRUZ and TS5A23157DGSR, MAX4590EAE uniquely balances ultra-low R_ON, wide supply flexibility, and industrial temperature grade in a standard 16-pin SSOP - making it optimal for high-fidelity, high-reliability test and telecom infrastructure where voltage range and matching matter most.

Availability

MAX4590EAE is available at Aetrix Electronics and suitable for automated test equipment, telecommunications infrastructure, and industrial instrumentation requiring stable component supply, long-term lifecycle support, and guaranteed parametric performance across –40°C to +85°C.

Supply support for MAX4590EAE 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, communications, and computing applications.

The MAX4590EAE belongs to Maxim's high-performance analog switch family engineered for relay replacement and precision signal routing in test, measurement, and telecom systems demanding low R_ON, tight matching, and wide supply tolerance.

FAQ

What is the maximum analog signal voltage range supported by the MAX4590EAE?

The MAX4590EAE supports rail-to-rail analog signals up to ±10V when operated with dual supplies (e.g., ±15V), or from GND to V+ − 1V in single-supply mode. Absolute maximum ratings allow V+ to GND up to +44V and V− to GND down to –44V, but the usable linear signal range remains constrained by supply rails and internal protection diode clamping behavior. The MAX4590EAE maintains specified R_ON flatness and leakage only within the ±10V range.

Does the MAX4590EAE require external level-shifting for TTL/CMOS logic inputs?

No, the MAX4590EAE does not require external level-shifting. Its logic inputs feature guaranteed +0.8V low and +2.4V high thresholds, ensuring direct compatibility with standard TTL and CMOS logic families when powered from +12V single supply or ±15V dual supplies. The VL pin allows independent logic supply referencing (up to +7V), further decoupling logic interface from analog supply noise - a key advantage of the MAX4590EAE in mixed-signal systems.

Can the MAX4590EAE be used in single-supply configurations?

Yes, the MAX4590EAE fully supports single-supply operation from +4.5V to +36V. In this mode, V− is connected to GND, and analog signals swing from GND to V+. The device retains all key specifications including 1.25Ω max R_ON, ≤0.25Ω R_ON match, and <2.5nA off-leakage at +85°C. Logic inputs remain TTL/CMOS-compatible via the VL pin, which can be tied to +5V or another stable logic rail - confirming the MAX4590EAE's versatility across both legacy and modern single-rail architectures.

What is the thermal performance of the MAX4590EAE in its SSOP-16 package?

The MAX4590EAE in 16-pin SSOP has a thermal resistance θ_JA of 110°C/W (typical). At maximum rated ambient temperature (+85°C) and worst-case power dissipation (571mW at TA = +70°C, derated above), junction temperature remains within safe operating limits. The package supports operation from –40°C to +85°C, with electrical parameters fully characterized across this range - a critical specification validated for the MAX4590EAE in industrial and automotive-adjacent environments.

How does the MAX4590EAE compare to the MAX4580EAE and MAX4600EAE in terms of switch configuration?

The MAX4590EAE contains two normally open (NO) SPST switches, whereas the MAX4580EAE contains two normally closed (NC) switches, and the MAX4600EAE integrates one NC and one NO switch. All three share identical electrical specs (R_ON, leakage, supply range, timing), pinout, and package - differing only in default switch state. This allows designers to select the MAX4590EAE specifically when fail-open behavior is required, such as in safety-critical signal disconnect paths or active-high routing architectures.