Analog Devices Inc./Maxim Integrated MAX4604ESE

Overview

MAX4604ESE 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 features 5Ω max on-resistance, 0.5Ω max R_ON match between channels, and ±4.5V to ±20V dual-supply or +4.5V to +36V single-supply operation - enabling reed relay replacement in test equipment and audio-signal routing.

For engineers reviewing the MAX4604ESE datasheet, MAX4604ESE pinout, MAX4604ESE application, or MAX4604ESE equivalent, key selection criteria include guaranteed R_ON flatness (0.5Ω max over signal range), 2.5nA max off-leakage at +85°C, TTL/CMOS-compatible logic thresholds, and 16-pin narrow SO package compatibility with industrial temperature requirements (-40°C to +85°C).

Technical Context

The MAX4604ESE implements CMOS-based transmission-gate architecture with integrated level-shifting circuitry to support TTL/CMOS logic inputs across wide supply ranges. Its four NC switches are independently controlled via digital inputs IN1–IN4, each referenced to VL (logic supply) and compatible with +12V single-supply or ±15V dual-supply configurations.

All analog terminals (COM, NC) handle rail-to-rail signals up to V+ and down to V−, with internal ESD protection (>2000V per Method 3015.7). The device maintains low charge injection (10pC typ) and high off-isolation (−62dB typ at 1MHz), critical for low-distortion switching in communication and avionics signal paths.

Key Specifications

Pinout & Package

MAX4604ESE is housed in a 16-pin narrow SOIC (SO/DIP) package, rated for −40°C to +85°C operation. Pin assignments follow standard Maxim analog switch layout with dedicated COM/NC pairs, isolated analog supplies (V+, V−), logic supply (VL), ground (GND), and independent control inputs (IN1–IN4).

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADG465BRUZ and TS5A3157DCKR, the MAX4604ESE uniquely delivers quad NC topology with full industrial temperature range, dual-supply flexibility, and guaranteed R_ON matching - making it irreplaceable in reed-relay-replacement and high-voltage test instrumentation designs.

Availability

MAX4604ESE is available at Aetrix Electronics and suitable for automatic test equipment, avionics signal conditioning, and PBX/PABX systems requiring stable component supply across extended temperature and voltage ranges.

Supply support for MAX4604ESE 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 and mixed-signal ICs for industrial, communications, and automotive markets.

The MAX4604 series belongs to Maxim's precision analog switch product line, engineered for low-distortion, high-reliability signal routing in mission-critical test and measurement systems.

FAQ

What is the maximum allowable supply voltage for MAX4604ESE?

The MAX4604ESE supports absolute maximum analog supply voltages of V+ to GND = −0.3V to +44V and V− to GND = +0.3V to −44V. For continuous operation, the recommended dual-supply range is ±4.5V to ±20V, and the single-supply range is +4.5V to +36V. Exceeding these ranges risks permanent damage, as clamping diodes activate beyond the absolute ratings.

Does MAX4604ESE require external level shifters when interfaced with 3.3V microcontrollers?

No, the MAX4604ESE does not require external level shifters. Its digital inputs have guaranteed TTL/CMOS-compatible thresholds (+0.8V low, +2.4V high) and accept logic supply (VL) from 2.7V to 5.5V. When VL = 3.3V, the MAX4604ESE reliably interprets 3.3V MCU outputs as valid logic states without translation circuitry.

How does the normally closed (NC) configuration of MAX4604ESE affect fail-safe behavior?

The MAX4604ESE's NC configuration provides inherent fail-safe continuity: when power is removed or control signals are inactive (INx = LOW), all four analog paths remain closed. This ensures uninterrupted signal flow in safety-critical applications like avionics sensor monitoring or emergency comms routing, unlike NO variants that default to open-circuit failure mode.

Can MAX4604ESE switch AC signals centered at 0V in a dual-supply setup?

Yes, the MAX4604ESE fully supports AC-coupled signals centered at 0V when operated from dual supplies (e.g., ±15V). Its rail-to-rail capability allows analog signals to swing from V− (−15V) to V+ (+15V), covering the full ±15V range. The COM and NC terminals maintain low distortion and flat R_ON across this span, making it suitable for bipolar audio and instrumentation amplifier interfaces.

What is the thermal performance of MAX4604ESE at its maximum operating temperature?

At +85°C, the MAX4604ESE maintains 2.5nA max off-leakage current and 5Ω max on-resistance - both fully specified and tested across the −40°C to +85°C industrial temperature range. On-resistance flatness remains ≤0.5Ω, and turn-on/turn-off times increase only marginally (t_ON ≤ 160ns, t_OFF ≤ 220ns), ensuring consistent timing behavior in thermally demanding environments.