Analog Devices Inc./Maxim Integrated MAX4580CAE

Overview

MAX4580CAE from Maxim Integrated is a dual SPST CMOS analog switch with two normally closed (NC) channels, designed for precision signal routing in rail-to-rail analog paths. 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 systems.

For engineers reviewing the MAX4580CAE datasheet, MAX4580CAE pinout, MAX4580CAE application, or MAX4580CAE equivalent, key selection criteria include guaranteed R_ON flatness (0.3Ω max), ±4.5V to ±20V dual-supply or +4.5V to +36V single-supply operation, TTL/CMOS-compatible logic thresholds, and ESD protection >2kV per Method 3015.7.

Technical Context

The MAX4580CAE implements a CMOS transmission-gate architecture optimized for low distortion and minimal charge injection (40pC typical). Its dual NC configuration enables fail-safe signal path closure when control inputs are de-asserted, supporting safety-critical routing in instrumentation and PBX systems.

It features independent COM–NC switch pairs with matched on-resistance across temperature (±40°C to +85°C), rail-to-rail analog voltage handling (V_COM, V_NC = V₋ to V₊), and logic supply (V_L) decoupled from analog supplies to minimize noise coupling.

Key Specifications

Pinout & Package

MAX4580CAE is housed in a 16-pin SSOP package (5.3mm width), JEDEC MO-150 compliant, with 0.65mm pitch and coplanar leads. Pin 1 is marked by a notch or dot; pins 1, 3, 6, 8, 10, and 15 are no-connect (N.C.) and must be tied to GND or low-impedance node to optimize isolation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX4580CAE, MAX4590CAE offers identical performance in a normally open configuration for fail-safe open-path designs, while ADG1419BRUZ trades R_ON matching and flatness for extended temperature operation - making MAX4580CAE optimal for precision, temperature-stable dual-channel routing where NC default is mandatory.

Availability

MAX4580CAE is available at Aetrix Electronics and suitable for automatic test equipment, telecom infrastructure, industrial sensor conditioning, and medical instrumentation requiring stable component supply and long-term manufacturability.

Supply support for MAX4580CAE 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 MAX4580CAE belongs to Maxim's precision analog switch product line, engineered for low on-resistance, rail-to-rail operation, and robust performance in automated test, telecom, and instrumentation systems demanding reliability and signal fidelity.

FAQ

What is the default state of the switches in MAX4580CAE?

The MAX4580CAE features two normally closed (NC) analog switches. When the logic control inputs are un-driven or held LOW, the COM–NC paths are closed, allowing signal conduction. This fail-safe NC behavior ensures continuity during power-up, reset, or controller failure - a key requirement in ATE and telecom line-card applications where signal path integrity is critical. The MAX4580CAE does not have dedicated IN pins; its control logic is hardwired to the NC function.

Does MAX4580CAE support single-supply operation?

Yes, MAX4580CAE supports single-supply operation from +4.5V to +36V. In this mode, V− (pin 4) is connected to GND (pin 5), V+ (pin 13) supplies the positive rail, and analog signals can swing rail-to-rail from GND to V+. The logic supply VL (pin 12) remains at +5V, independent of V+, ensuring TTL/CMOS compatibility. All electrical specifications - including 1.25Ω R_ON, 2.5nA leakage, and 40pC charge injection - are guaranteed across the full single-supply range.

What is the maximum signal voltage range supported by MAX4580CAE?

MAX4580CAE supports rail-to-rail analog signal handling: signals at COM1, COM2, NC1, and NC2 can swing from V− to V+ without distortion or clipping. With ±15V dual supplies, this equals ±15V; with +12V single supply (V− = GND), it equals 0V to +12V. Absolute maximum ratings allow V+ to GND up to +44V and V− to GND down to −44V, but operational signal range is strictly bounded by the applied supply rails. Exceeding V+ or V− clamps via internal diodes - external protection is recommended if overvoltage risk exists.

How does MAX4580CAE achieve guaranteed R_ON matching between channels?

MAX4580CAE achieves guaranteed R_ON matching (0.25Ω max) through laser-trimmed, matched transistor pairs in its CMOS transmission-gate structure and rigorous wafer-level binning. This specification is tested across temperature (0°C to +70°C for MAX4580CAE) and process variation, ensuring that the difference between the higher and lower R_ON values of the two NC switches never exceeds 0.25Ω. This tight matching is critical for differential signal routing, gain-matched channel selection, and precision multiplexing where channel-to-channel gain error must be minimized - a capability not offered by generic analog switches.

Can MAX4580CAE be used with logic supplies other than +5V on VL?

Yes, MAX4580CAE supports VL from +2.7V to +5.5V, though the datasheet specifies +5V for guaranteed timing and logic threshold performance. Operating VL outside this range may affect propagation delay, t_ON/t_OFF, and noise immunity. For example, at VL = +3.3V, logic thresholds scale proportionally (~0.5×VL), but the device remains functional if input voltages meet the scaled thresholds. However, all guaranteed specs - including 1.25Ω R_ON, 2.5nA leakage, and 40pC charge injection - are validated only at VL = +5V. For robust operation, maintain VL = +5V ±5% with local 0.1µF ceramic decoupling.