Analog Devices Inc./Maxim Integrated MAX4580EAE+

Overview

MAX4580EAE+ from Maxim Integrated is a dual SPST CMOS analog switch with two normally closed (NC) channels, designed for rail-to-rail signal routing in precision analog systems. It delivers 1.25Ω max on-resistance, 0.25Ω max R_ON match between channels, and 2.5nA max off-leakage at +85°C, enabling low-distortion switching in automatic test equipment and communication interfaces.

For engineers reviewing the MAX4580EAE+ datasheet, MAX4580EAE+ pinout, MAX4580EAE+ application, or MAX4580EAE+ equivalent, key selection criteria include its -40°C to +85°C industrial temperature range, 16-pin SSOP package, dual- or single-supply operation (+4.5V to +36V or ±4.5V to ±20V), and TTL/CMOS-compatible logic thresholds.

Technical Context

The MAX4580EAE+ implements a fully complementary CMOS switch architecture with internal charge-pump-assisted level shifting, enabling true rail-to-rail analog signal handling across its full ±15V dual-supply or +12V single-supply operating range. Its matched R_ON and flat 0.3Ω R_ON variation over signal range ensure minimal gain error and crosstalk in multiplexed instrumentation paths.

Control logic uses fixed 0.8V/2.4V TTL/CMOS thresholds referenced to VL, decoupling digital interface voltage from analog supply rails. All analog terminals (COM, NC) are protected by back-to-back ESD diodes rated >2kV per Method 3015.7, supporting robust operation in noisy industrial environments without external clamping.

Key Specifications

Pinout & Package

MAX4580EAE+ 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 provides thermal resistance θ_JA = 140°C/W and supports reflow soldering per J-STD-020.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADG1419BRUZ and TS5A3157DCKR, the MAX4580EAE+ uniquely balances wide supply range, NC configuration, and industrial temperature rating - making it the only option supporting reed-relay replacement in legacy telecom and ATE systems requiring -40°C to +85°C operation with single- or dual-supply flexibility.

Availability

MAX4580EAE+ is available at Aetrix Electronics and suitable for automatic test equipment, industrial data acquisition systems, and telecom line card designs requiring stable component supply across extended temperature ranges and mixed-supply architectures.

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) is a fabless semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and computing markets.

The MAX4580EAE+ belongs to Maxim's precision analog switch product line, engineered specifically for reed-relay replacement in high-reliability test and measurement systems where low distortion, guaranteed matching, and robust ESD tolerance are mandatory.

FAQ

What is the maximum analog signal voltage range supported by the MAX4580EAE+?

The MAX4580EAE+ supports rail-to-rail analog signals from V− to V+, with absolute maximum ratings of -0.3V to +44V on V+ and +0.3V to -44V on V−. In standard ±15V dual-supply operation, this enables ±15V signal handling; in +12V single-supply mode, it supports 0V to +12V signals. The device's internal protection diodes clamp signals exceeding rails, but sustained overvoltage requires external limiting.

Does the MAX4580EAE+ require separate logic and analog supplies?

Yes - the MAX4580EAE+ requires VL (logic supply) and V+/V− (analog supplies) to be independently sourced. VL must be between 2.7V and V+ to maintain correct TTL/CMOS input thresholds. For +12V single-supply operation, VL is typically tied to +5V, while V− connects to GND and V+ to +12V. This separation prevents digital noise from modulating analog performance.

How does the normally closed (NC) configuration of the MAX4580EAE+ affect system safety?

The MAX4580EAE+'s NC topology ensures signal continuity when power is absent or control logic is inactive - a critical fail-safe feature in ATE and telecom systems. When IN1/IN2 are low or floating, COM1/COM2 remain connected to NC1/NC2. This prevents open-circuit faults during brownouts or controller resets, maintaining bias paths for sensors or battery feeds without external pull-up circuitry.

Can the MAX4580EAE+ be used with 3.3V logic controllers?

Yes - the MAX4580EAE+ accepts 3.3V logic levels directly. Its guaranteed input thresholds (+0.8V low, +2.4V high) are fully compatible with 3.3V CMOS outputs, and VL can be set to +3.3V (within 2.7V–V+ range). No level-shifting circuitry is needed, simplifying interface design with modern microcontrollers and FPGAs while maintaining noise margin.

What is the thermal performance of the MAX4580EAE+ in its 16-pin SSOP package?

The MAX4580EAE+ in 16-pin SSOP has a junction-to-ambient thermal resistance (θ_JA) of 140°C/W under standard JEDEC conditions. At maximum 571mW power dissipation (at +70°C ambient), junction temperature rises ~80°C above ambient - well within the -40°C to +125°C absolute maximum rating. For high-power applications, adding copper pour under the exposed pad (if present) or using thermal vias improves heat transfer.