Analog Devices Inc./Maxim Integrated MAX4580EAE

Overview

MAX4580EAE from Maxim Integrated is a dual SPST normally closed (NC) 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 MAX4580EAE datasheet, MAX4580EAE pinout, MAX4580EAE application, or MAX4580EAE equivalent, key selection criteria include NC-switch topology, -40°C to +85°C temperature rating, 16-pin SSOP package, and TTL/CMOS-compatible logic thresholds at +12V supply.

Technical Context

The MAX4580EAE implements two independent normally closed analog switches using high-voltage CMOS process technology. Each switch features bidirectional rail-to-rail conduction, guaranteed R_ON matching ≤0.25Ω between channels, and R_ON flatness ≤0.3Ω over ±10V signal range.

It supports dual-supply operation (±4.5V to ±20V) or single-supply operation (+4.5V to +36V), with logic inputs referenced to VL and compatible with TTL/CMOS thresholds (V_{IN_H} = 2.4V, V_{IN_L} = 0.8V) when powered from +12V or ±15V supplies.

Key Specifications

Pinout & Package

MAX4580EAE is housed in a 16-pin SSOP (Shrink Small Outline Package) with 0.65mm pitch, 5.3mm body width, and JEDEC MO-150 compliance. Pin 1 is located at the top-left corner adjacent to the index mark.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX4590EAE, MAX4580EAE provides fail-safe continuity on power loss; compared with ADG1419BRUZ, it offers simpler parallel logic control and lower on-resistance but lacks extended temperature and serial interface capability.

Availability

MAX4580EAE is available at Aetrix Electronics and suitable for automated test equipment, telecom signal routing, and industrial sensor interface applications requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MAX4580EAE 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 high-reliability semiconductor solutions for industrial, communications, and computing markets.

The MAX4580EAE belongs to Maxim's high-voltage analog switch product line, engineered specifically for reed relay replacement in ATE and telecom infrastructure where low on-resistance, rail-to-rail operation, and robust ESD tolerance are mandatory.

FAQ

What is the default switch state of MAX4580EAE?

The MAX4580EAE features two normally closed (NC) analog switches. When logic inputs IN1 and IN2 are held LOW, both switches conduct between COM and NC terminals. Applying HIGH to either INx opens that switch. This fail-safe NC behavior ensures signal continuity during power-up, reset, or control failure - a key requirement in automated test equipment where uninterrupted calibration paths are critical. The MAX4580EAE datasheet confirms this in the truth table and functional diagram sections.

Can MAX4580EAE operate from a single +12V supply?

Yes, MAX4580EAE supports single-supply operation from +4.5V to +36V. With V+ = +12V and V− tied to GND, it delivers rail-to-rail analog conduction from 0V to +12V. Logic inputs remain TTL/CMOS-compatible (V_{IN_L} ≤ 0.8V, V_{IN_H} ≥ 2.4V) without translation, and all electrical specifications - including 1.25Ω max R_ON, 2.5nA off-leakage at +85°C, and 150ns turn-on time - are guaranteed across this configuration. The MAX4580EAE Electrical Characteristics table explicitly lists single-supply test conditions.

What is the purpose of the VL pin on MAX4580EAE?

The VL pin on MAX4580EAE supplies power to the internal logic control circuitry independently of the analog supply rails (V+ and V−). It is typically connected to +5V and decoupled with a 0.1µF capacitor. This separation ensures stable logic threshold referencing regardless of analog supply voltage fluctuations, enabling reliable operation across the full +4.5V to +36V single-supply or ±4.5V to ±20V dual-supply range. The MAX4580EAE datasheet specifies VL = +5V in all timing and logic characterization tests.

How does MAX4580EAE handle overvoltage conditions on analog pins?

MAX4580EAE includes internal ESD protection diodes on all analog pins (COM, NC, NO, V+, V−), clamping signals exceeding V+ or falling below V−. To prevent damage during overvoltage events beyond absolute maximum ratings (e.g., ±44V), external series diodes (D1, D2) can be added on V+ and V− lines as shown in Figure 1 of the MAX4580EAE datasheet. This reduces usable analog range by one diode drop but preserves low R_ON and leakage performance. The MAX4580EAE Absolute Maximum Ratings table defines safe operating limits and notes diode current limitations.

Is MAX4580EAE pin-compatible with other variants in the MAX4580/MAX4590/MAX4600 family?

Yes, MAX4580EAE shares identical pinout, package (16-pin SSOP), and footprint with MAX4590EAE and MAX4600EAE. All three variants use the same pin assignments for power (V+, V−, GND, VL), logic inputs (IN1, IN2), analog terminals (COM1, COM2, NC1, NC2 or NO1, NO2), and N.C. pads. This allows direct substitution in layouts designed for the family - though functional behavior differs: MAX4580EAE is dual NC, MAX4590EAE is dual NO, and MAX45600EAE is mixed NC/NO. The MAX4580EAE Pin Description table confirms identical pin mapping across variants.