Analog Devices Inc./Maxim Integrated MAX4504ESA

Overview

MAX4504ESA from Maxim Integrated is a low-voltage, dual-supply, normally closed (NC) SPST CMOS analog switch in 8-pin SO package. It operates from ±1V to ±6V supplies, supports rail-to-rail analog signals up to ±5.5V, delivers 250Ω on-resistance at ±5V, and exhibits only 1nA off-leakage at +25°C - ideal for precision signal routing in battery-powered instrumentation.

For engineers reviewing the MAX4504ESA datasheet, MAX4504ESA pinout, MAX4504ESA application, or MAX4504ESA equivalent, key selection criteria include guaranteed NC state behavior, dual-supply leakage performance across -40°C to +85°C, ±5V on-resistance specification, and SO-8 package compatibility with industrial PCB layouts.

Technical Context

The MAX4504ESA implements a single-pole/single-throw analog switch with internal CMOS transmission gates controlled by a logic-level input referenced to V+, eliminating need for a ground pin. Its architecture uses reverse-biased ESD diodes between signal pins and V+/V− to define analog voltage limits and leakage paths.

Switching is bidirectional: COM, NC, and NO pins are functionally interchangeable as input/output. Charge injection is limited to 10pC max, and dynamic response includes t_ON = 150ns and t_OFF = 100ns at ±5V, enabling reliable operation in audio and data-acquisition timing windows.

Key Specifications

Pinout & Package

MAX4504ESA is housed in an 8-pin SOIC (SO-8) package with standard .150" body width and 1.27mm pitch. Pin 1 is marked with a beveled corner or dot; device orientation follows JEDEC MS-012.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX4504ESA, MAX4504EUK offers identical functionality in a smaller SOT23-5 package but requires rework of PCB layout and thermal validation, while ADG1419BRMZ trades dual-supply capability and ultra-low leakage for higher voltage range and lower on-resistance - making it unsuitable as a drop-in replacement.

Availability

MAX4504ESA is available at Aetrix Electronics and suitable for battery-operated instrumentation, audio signal routing, and low-voltage data-acquisition systems requiring stable component supply across extended temperature ranges.

Supply support for MAX4504ESA 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, medical, and communications applications.

The MAX4503/MAX4504 product line delivers low-leakage, dual-supply SPST analog switches optimized for rail-to-rail signal integrity in portable and high-reliability measurement systems.

FAQ

What is the operating temperature range of the MAX4504ESA?

The MAX4504ESA is rated for operation from -40°C to +85°C. This extended industrial temperature range is confirmed in the Ordering Information table and Absolute Maximum Ratings section of the datasheet. All electrical specifications - including on-resistance, leakage current, and switching times - are guaranteed across this full range. The "E" suffix in MAX4504ESA explicitly denotes the -40°C to +85°C grade, distinguishing it from the commercial-grade "C" version.

Does the MAX4504ESA require a ground connection for proper operation?

No, the MAX4504ESA does not require a ground connection. Its digital input is internally referenced to V+, and the logic-level translator operates without a ground pin. The device uses only V+ and V− supply pins, with all analog and digital circuitry biased relative to those rails. This architecture eliminates ground-loop concerns in isolated systems and simplifies PCB layout in multi-supply environments - a key design feature explicitly documented in the Applications Information section.

How does the normally closed (NC) behavior of the MAX4504ESA affect system-level fail-safe design?

The MAX4504ESA defaults to conducting between COM and NC when the IN pin is low or un-driven, providing inherent fail-safe continuity. This behavior ensures signal path integrity during power-up, brown-out, or controller reset - critical in medical sensors or safety monitoring circuits. Unlike the MAX4503 (NO), the MAX4504ESA's NC state is electrically guaranteed across temperature and supply voltage, with leakage and on-resistance fully specified in the Electrical Characteristics tables.

Can the MAX4504ESA be used with ±3V supplies, and how do key parameters change?

Yes, the MAX4504ESA supports ±3V dual supplies, with verified performance down to ±1V. At ±3V, on-resistance increases to 400Ω max (vs. 250Ω at ±5V), while off-leakage remains ≤1nA at +25°C. These values are explicitly listed in the "ELECTRICAL CHARACTERISTICS-±3V Supply" table. The analog signal range remains rail-to-rail (V− to V+), and switching speeds degrade only marginally - confirming robust operation across the full ±1V to ±6V range.

What is the maximum allowable analog signal voltage swing for the MAX4504ESA?

The MAX4504ESA supports rail-to-rail analog signals from V− to V+, with absolute maximum ratings allowing V+ up to +13V and V− down to -0.3V (relative to V−). However, functional operation is guaranteed only within the supply rails: for example, with V+ = +5.5V and V− = -5.5V, the safe analog range is -5.5V to +5.5V. Exceeding V+ or V− forward-biases internal ESD diodes, limiting current to ±10mA - a condition documented in the Absolute Maximum Ratings table and Applications Information section.