Analog Devices Inc./Maxim Integrated MAX4580EPE

Overview

MAX4580EPE 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 signal switching in automatic test equipment and communication interfaces.

For engineers reviewing the MAX4580EPE datasheet, MAX4580EPE pinout, MAX4580EPE application, or MAX4580EPE equivalent, key selection criteria include its ±4.5V to ±20V dual-supply or +4.5V to +36V single-supply operation, TTL/CMOS-compatible logic thresholds, and guaranteed ESD protection >2kV - all critical for reed-relay replacement and high-reliability industrial signal routing.

Technical Context

The MAX4580EPE implements a CMOS transmission-gate architecture optimized for low distortion and flat on-resistance over its full ±10V signal range. Its dual NC configuration enables fail-safe signal path closure during power loss, and internal level-shifting supports independent VL logic supply (up to +5V) while operating from wide analog supply rails.

Control logic uses fixed-threshold inputs (0.8V low / 2.4V high), ensuring compatibility with +12V single-supply or ±15V dual-supply systems without external level translation. The device guarantees R_ON flatness ≤0.3Ω across V_COM, minimizing harmonic distortion in audio and instrumentation applications.

Key Specifications

Pinout & Package

MAX4580EPE is housed in a 16-pin plastic DIP package (0.300" width), compatible with through-hole assembly and legacy test fixtures. Pin spacing follows JEDEC MS-013 standards, with 0.1" row pitch and 0.3" body width.

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 MAX4580EPE uniquely supports both wide dual-supply operation and fail-safe NC topology - making it the only option among the three qualified for reed-relay replacement in -48V telecom or ±15V test equipment without redesigning power or logic interfaces.

Availability

MAX4580EPE is available at Aetrix Electronics and suitable for automatic test equipment, telecom infrastructure, industrial sensor multiplexing, and medical instrumentation requiring stable component supply across extended temperature ranges (-40°C to +85°C).

Supply support for MAX4580EPE 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, automotive, and communications markets.

The MAX4580EPE belongs to Maxim's high-performance analog switch family, engineered specifically for low-distortion, high-reliability signal routing in mission-critical test and telecom systems where mechanical relay replacement is required.

FAQ

What is the maximum signal voltage range supported by the MAX4580EPE?

The MAX4580EPE supports rail-to-rail analog signals from V− to V+, enabling operation across ±15V dual supplies or 0V to +12V single supplies. Absolute maximum ratings allow V+ to GND up to +44V and V− to GND down to -44V, but continuous operation is specified for ±4.5V to ±20V (dual) or +4.5V to +36V (single). The MAX4580EPE maintains guaranteed R_ON flatness within ±10V of either rail.

Does the MAX4580EPE require external pull-up or pull-down resistors on its IN1/IN2 pins?

No, the MAX4580EPE does not require external pull-up or pull-down resistors on IN1/IN2 because its logic inputs have defined TTL/CMOS-compatible thresholds (0.8V low, 2.4V high) and negligible input current (<0.5µA). However, floating inputs must be avoided - tie unused control lines to VL or GND. The MAX4580EPE's internal structure ensures clean switching without external biasing under normal operating conditions.

How does the NC (normally closed) configuration of the MAX4580EPE behave during power loss?

During power loss (V+ and V− unpowered), the MAX4580EPE's NC switches remain conductive due to inherent MOSFET channel behavior in depletion-mode-like biasing - providing a fail-safe closed path. This behavior is confirmed in the functional truth table and enables continuity in alarm circuits or reference paths. The MAX4580EPE's NC state is maintained without auxiliary power, distinguishing it from NO-only alternatives.

Can the MAX4580EPE be used with a +5V logic supply while operating from ±15V analog supplies?

Yes - the MAX4580EPE supports independent logic supply (VL) from +2.7V to +5.5V while analog supplies operate from ±4.5V to ±20V. With VL = +5V, IN1/IN2 retain TTL/CMOS compatibility, and internal level shifters ensure correct gate biasing for the analog switches. This separation allows direct interfacing with +5V microcontrollers in ±15V signal chains - a core capability verified in the MAX4580EPE electrical characteristics tables.

What is the typical charge injection value of the MAX4580EPE, and why does it matter?

The MAX4580EPE exhibits 40pC typical charge injection, measured at V_COM = +10V with ±15V supplies. This parameter directly impacts glitch magnitude in sample-and-hold circuits and multiplexed ADC front-ends: lower charge injection reduces settling time and residual voltage error after switching. The MAX4580EPE's 40pC value is validated in Figure TOC06 and makes it suitable for 12-bit+ precision data acquisition where switch-induced transients must be minimized.