Analog Devices Inc./Maxim Integrated MAX4604CSE

Overview

MAX4604CSE 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 5Ω max on-resistance, 0.5Ω max R_ON match between channels, and 2.5nA max off-leakage at +85°C, enabling low-distortion reed relay replacement in test equipment and PBX systems.

For engineers reviewing the MAX4604CSE datasheet, MAX4604CSE pinout, MAX4604CSE application, or MAX4604CSE equivalent, key selection criteria include guaranteed R_ON flatness (0.5Ω max), dual-supply operation (±4.5V to ±20V), TTL/CMOS-compatible logic thresholds, and 16-pin narrow SO package compatibility with automated PCB assembly.

Technical Context

The MAX4604CSE implements CMOS-based transmission-gate architecture with integrated ESD protection (>2000V per Method 3015.7) and matched channel design ensuring ≤0.5Ω R_ON mismatch across all four NC switches. Its control logic accepts 0.8V/2.4V thresholds, enabling direct interface with +12V single-supply or ±15V dual-supply systems without level shifting.

Signal handling supports rail-to-rail analog voltages from V− to V+, with on-resistance flatness maintained over ±10V input range. Dynamic performance includes 120ns typical turn-on time and −62dB off-isolation at 1MHz, validated under dual-supply conditions (V+ = +15V, V− = −15V).

Key Specifications

Pinout & Package

MAX4604CSE is housed in a 16-pin narrow SOIC (SO/DIP) package with exposed pad not present; footprint compatible with JEDEC MS-012AC standard. Pin functions are electrically isolated per channel, supporting independent switching of four analog signals.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX4604CSE, ADG1414BRUZ offers lower resistance but removes NC safety default, while TS5A3157DCKR trades integration for size and R_ON - MAX4604CSE remains optimal for quad NC routing with industrial supply flexibility and proven reliability in ATE.

Availability

MAX4604CSE is available at Aetrix Electronics and suitable for reed relay replacement, PBX signal routing, and test equipment multiplexing requiring stable component supply across extended temperature ranges (0°C to +70°C).

Supply support for MAX4604CSE 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 MAX4604 series belongs to Maxim's precision analog switch product line, engineered specifically for low-distortion, high-reliability signal routing in automatic test equipment and telecom infrastructure where NC default behavior and rail-to-rail operation are mandatory.

FAQ

What is the maximum allowable voltage difference between V+ and V− for MAX4604CSE?

The absolute maximum rating specifies V+ to V− must not exceed +44V. This limit ensures internal protection diodes remain within safe operating area. Exceeding this risks permanent damage, even if individual rails stay within their respective −0.3V to +44V limits relative to GND. The MAX4604CSE is rated for ±20V dual supplies, making +40V total differential the practical design ceiling for reliable long-term operation.

Does MAX4604CSE support single-supply operation with V− tied to GND?

Yes, MAX4604CSE fully supports single-supply operation: connect V− to GND, apply analog signal between GND and V+, and use VL = 3V–5.5V for logic. Electrical characteristics confirm R_ON = 5.5Ω max and off-leakage ≤0.5nA at V+ = +12V, V− = 0V. The device maintains rail-to-rail capability from 0V to V+, making it suitable for battery-powered and industrial 12V/24V systems.

How does the NC (normally closed) configuration of MAX4604CSE behave during power-down?

When V+ and V− are unpowered, the MAX4604CSE's NC switches remain conductive - COM-to-NC paths stay closed by default, providing fail-safe continuity. This behavior is inherent to its CMOS transmission-gate topology with depletion-mode latch elements. Unlike NO variants (e.g., MAX4605), the MAX4604CSE ensures signal path integrity during brownout or main power loss, critical for avionics and medical safety interlocks.

Can MAX4604CSE be used with 3.3V logic control signals?

No - MAX4604CSE requires VL = 4.5V–5.5V for guaranteed TTL/CMOS compatibility, and its logic thresholds are fixed at 0.8V (low) and 2.4V (high). A 3.3V logic source may not reliably exceed the 2.4V V_{IN_H} threshold across temperature and process variation. To interface with 3.3V controllers, use a level shifter such as the MAX3370 or operate VL at 5V while keeping analog supplies independent.

What is the thermal resistance (θ_JA) of the MAX4604CSE in its narrow SO package?

The MAX4604CSE in 16-pin narrow SO has a junction-to-ambient thermal resistance (θ_JA) of 115°C/W, derived from its 696mW maximum power dissipation at +70°C ambient and 8.70mW/°C derating slope. This value assumes standard JEDEC 2S2P board layout; actual θ_JA improves with copper pour and thermal vias. At 100mA per channel and 5Ω R_ON, worst-case power is 50mW per switch - well within thermal limits for continuous operation.