Analog Devices Inc./Maxim Integrated MAX4590EPE

Overview

MAX4590EPE 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 reed relay replacement in automated test equipment.

For engineers reviewing the MAX4590EPE datasheet, MAX4590EPE pinout, MAX4590EPE application, or MAX4590EPE 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 plastic DIP packaging for through-hole prototyping and industrial control interfaces.

Technical Context

The MAX4590EPE implements two independent NO (normally open) analog switches using high-voltage CMOS process technology, enabling bidirectional signal routing without polarity constraints. Its architecture supports both single- and dual-supply configurations while maintaining consistent R_ON flatness and leakage performance over –40°C to +85°C.

Each switch features internal protection diodes clamping signals beyond V+ or V–, with logic inputs referenced to VL (logic supply) and compatible with standard TTL/CMOS levels. The device operates with low dynamic power - typical I+ and I– currents are <0.5µA - and exhibits fast switching (t_ON = 150ns, t_OFF = 200ns at +10V COM).

Key Specifications

Pinout & Package

MAX4590EPE is housed in a 16-pin plastic DIP package (0.300" width), suitable for through-hole mounting and manual prototyping. Pin assignments follow industry-standard SOIC/DIP pinout conventions with dedicated analog and logic supply pins.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADG1412BRUZ and TS5A23157DGSR, the MAX4590EPE uniquely combines dual NO topology, wide supply range (±20V), and through-hole DIP packaging - making it the only option among the three suitable for legacy industrial ATE upgrades requiring mechanical relay drop-in replacement without PCB redesign.

Availability

MAX4590EPE is available at Aetrix Electronics and suitable for automated test equipment, communication system signal routing, and PBX line interface applications requiring stable component supply and long-lifecycle availability.

Supply support for MAX4590EPE 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 MAX4590EPE belongs to the MAX4580/MAX4590/MAX4600 family of precision analog switches, designed specifically to replace electromechanical relays in high-reliability, low-distortion signal routing applications.

FAQ

What is the maximum operating temperature range for the MAX4590EPE?

The MAX4590EPE is rated for operation from –40°C to +85°C. This extended temperature range is confirmed in the Ordering Information table and supported by electrical characteristics tested across that full range, including R_ON, leakage, and switching times. The 'E' suffix in MAX4590EPE explicitly denotes the –40°C to +85°C grade, distinguishing it from the 'C' grade (0°C to +70°C). Thermal derating curves for power dissipation are provided in the Absolute Maximum Ratings section.

Does the MAX4590EPE support single-supply operation?

Yes, the MAX4590EPE supports single-supply operation from +4.5V to +36V. In this mode, V− (pin 4) is connected to GND (pin 5), and analog signals can swing rail-to-rail from 0V to V+. Electrical characteristics for single-supply operation - including R_ON (3Ω max), leakage, and logic thresholds - are fully specified in the datasheet's "ELECTRICAL CHARACTERISTICS–Single Supply" table. The device maintains TTL/CMOS compatibility with +0.8V/+2.4V thresholds at +12V supply.

What is the function of the VL pin on the MAX4590EPE?

The VL pin (pin 12) on the MAX4590EPE provides a dedicated logic supply reference, decoupling digital input thresholds from the analog supply rails. It accepts +2.7V to +5.5V and sets the +0.8V low and +2.4V high logic thresholds independently of V+ or V−. This allows clean interfacing with 3.3V or 5V microcontrollers even when analog supplies are ±15V - a key feature confirmed in the Pin Description table and Truth Table sections of the datasheet.

Can the MAX4590EPE be used as a direct replacement for mechanical reed relays?

Yes, the MAX4590EPE is explicitly positioned as a reed relay replacement in its Applications section and General Description. Its dual NO topology, low 1.25Ω R_ON, <2.5nA off-leakage at +85°C, and ±200mA continuous current rating enable solid-state substitution in fixtures, test matrices, and telecom line cards. Unlike relays, it offers >100 million cycles, µs-scale switching, and no contact bounce - verified by lifetime and dynamic characterization data in the Typical Operating Characteristics plots.

What are the absolute maximum ratings for analog signal voltage on the MAX4590EPE?

The MAX4590EPE allows analog signals on COM, NO, and NC pins to range from (V− – 0.3V) to (V+ + 0.3V), as stated in the Absolute Maximum Ratings table. Internal clamping diodes protect against overvoltage, but forward current must be limited to the device's maximum-rated current. For example, with V+ = +15V and V− = –15V, signals may safely swing from –15.3V to +15.3V. Exceeding these limits risks permanent damage, and operation outside the recommended signal range (±10V) degrades R_ON flatness and leakage.