Analog Devices Inc./Maxim Integrated MAX4601CAE

Overview

MAX4601CAE from Maxim Integrated is a quad SPST analog switch with four normally closed (NC) channels, designed for rail-to-rail signal routing in precision analog systems. It delivers 2.5Ω max on-resistance, 0.5Ω max R_ON match between channels, and 2.5nA max off-leakage at +85°C, enabling low-distortion signal switching in test equipment and communication systems.

For engineers reviewing the MAX4601CAE datasheet, MAX4601CAE pinout, MAX4601CAE application, or MAX4601CAE equivalent, key selection criteria include its NC configuration, ±4.5V to ±20V dual-supply or +4.5V to +36V single-supply operation, TTL/CMOS-compatible logic thresholds, and guaranteed R_ON flatness of 0.5Ω over the full signal range.

Technical Context

The MAX4601CAE implements CMOS-based transmission-gate architecture with integrated level-shifting circuitry to support control inputs referenced to VL while analog paths operate across V+ and V− rails. Its four independent NC switches are fully isolated, with no internal channel coupling beyond specified crosstalk (−60dB typical).

All digital inputs feature fixed 0.8V/2.4V logic thresholds-guaranteed across supply ranges-enabling direct interface with +12V single-supply or ±15V dual-supply systems without external level translation. The device requires separate VL (logic supply) and analog supplies (V+, V−), with VL decoupled from analog ground to minimize noise coupling into sensitive analog paths.

Key Specifications

Pinout & Package

MAX4601CAE is housed in a 16-pin SSOP (Shrink Small Outline Package) with 0.65mm lead pitch, 5.0mm × 6.2mm body size, and exposed pad not connected internally. This package supports reflow soldering and provides thermal performance adequate for ≤571mW dissipation at +70°C ambient.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX4602CAE, the MAX4601CAE provides inherent fail-safe continuity but requires inverted control logic; compared with ADG441BRUZ, it supports wider supply ranges and lower on-resistance but at higher unit cost and larger footprint.

Availability

MAX4601CAE is available at Aetrix Electronics and suitable for reed relay replacement, automated test equipment, and avionics sensor interface applications requiring stable component supply across extended temperature and voltage ranges.

Supply support for MAX4601CAE 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 high-performance analog, mixed-signal, and power management ICs for industrial, communications, and automotive markets.

The MAX4601CAE belongs to Maxim's precision analog switch family, engineered specifically for low-R_ON, rail-to-rail signal routing in environments demanding reliability, low distortion, and wide supply flexibility.

FAQ

What is the operating temperature range for MAX4601CAE?

The MAX4601CAE is rated for 0°C to +70°C operation, as indicated by the "C" grade suffix in its part number. This commercial-grade temperature range is validated across all electrical specifications including on-resistance, leakage current, and switching times, making it suitable for indoor industrial and lab equipment where ambient conditions remain controlled.

Does MAX4601CAE support single-supply operation?

Yes, MAX4601CAE supports single-supply operation from +4.5V to +36V. In this mode, V− must be connected to GND, V+ supplies the positive rail, and VL must be set to a valid logic voltage (typically +5V). All analog signal voltages must remain within the 0V to V+ range to ensure proper rail-to-rail functionality and avoid exceeding absolute maximum ratings.

How does the normally closed (NC) configuration of MAX4601CAE affect system behavior during power loss?

The MAX4601CAE's NC architecture ensures that all four switches remain conductive (COM–NC path closed) when IN pins are un-driven or at logic low. During power loss, if V+ and VL collapse before control signals decay, the switches default to ON - providing fail-safe signal continuity critical in safety-critical monitoring paths such as avionics sensor feeds or emergency shutdown circuits.

Can MAX4601CAE be used with ±12V analog supplies?

Yes, MAX4601CAE is fully specified for dual-supply operation from ±4.5V to ±20V. At ±12V, it maintains 2.5Ω max on-resistance, 0.5Ω max R_ON match, and 2.5nA max off-leakage at +85°C. The device requires VL ≥2.7V (e.g., +5V) and proper decoupling on V+, V−, and VL to ensure stable switching and low noise coupling into analog paths.

What is the maximum analog signal voltage range supported by MAX4601CAE?

MAX4601CAE supports rail-to-rail analog signals from V− to V+. With ±15V dual supplies, this means −15V to +15V; with +12V single supply and V− = GND, it supports 0V to +12V. Signal voltages must stay within (V− − 0.3V) to (V+ + 0.3V) to prevent damage from internal diode conduction, as defined in Absolute Maximum Ratings.