Analog Devices Inc./Maxim Integrated MAX4513ESE+T

Overview

MAX4513ESE+T from Maxim Integrated is a quad SPST analog switch with two normally closed (NC) and two normally open (NO) channels, fault-protected up to ±36V with ±15V supplies or ±40V with power off, 175Ω max on-resistance, rail-to-rail signal handling, and TTL/CMOS-compatible logic inputs - used in industrial data acquisition systems requiring robust signal routing under overvoltage transients.

For engineers reviewing the MAX4513ESE+T datasheet, MAX4513ESE+T pinout, MAX4513ESE+T application, or MAX4513ESE+T equivalent, key selection criteria include fault protection voltage range, on-resistance matching (≤10Ω), break-before-make timing (50–100ns for MAX4513 variant), dual/single supply flexibility (±4.5V to ±18V or +9V to +36V), and guaranteed leakage performance at +85°C (10nA off-leakage).

Technical Context

The MAX4513ESE+T implements parallel N- and P-channel FET architecture per channel, enabling low on-resistance while maintaining rail-to-rail conduction. Fault detection uses dedicated comparators monitoring NO_/NC_ pins against V+ and V−, triggering high-impedance isolation and booster-FET current sourcing/sinking (±10mA) during overvoltage events.

It features independent digital control of four SPST switches, with IN1–IN4 driving respective COM–NO/NC paths. The MAX4513 variant specifically configures IN1/IN4 as NC-controlled and IN2/IN3 as NO-controlled, enabling mixed-signal redundancy architectures without external logic reconfiguration.

Key Specifications

Pinout & Package

MAX4513ESE+T is housed in a 16-pin narrow SO (SOIC-N) package, 3.9mm width, with standard 1.27mm pitch and exposed pad not present. Pin functions are electrically identical across MAX4511/MAX4512/MAX4513 variants; MAX4513-specific configuration is defined by internal logic mapping, not pin assignment.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX4513EUE+T, MAX4513ESE+T offers easier hand-soldering and better thermal dissipation in industrial enclosures; compared with ADG413BRZ, it trades 140Ω higher RON for ±36V fault immunity - eliminating external TVS arrays and reducing BOM count in harsh-environment designs.

Availability

MAX4513ESE+T is available at Aetrix Electronics and suitable for industrial data acquisition, avionics signal routing, and ATE equipment requiring stable component supply with extended temperature support (−40°C to +85°C) and long-lifecycle assurance.

Supply support for MAX4513ESE+T 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 and mixed-signal ICs for industrial, automotive, and communications markets, emphasizing ruggedness, precision, and integration.

The MAX451x family targets fault-prone analog signal routing applications - delivering integrated overvoltage protection, rail-to-rail operation, and industry-standard pinouts to simplify upgrade paths from legacy switches in test, measurement, and control systems.

FAQ

What is the maximum fault voltage the MAX4513ESE+T can withstand with power applied?

The MAX4513ESE+T withstands ±36V faults on its NO_/NC_ pins when powered with ±15V supplies. With other supply voltages, the absolute fault limit remains ±36V referenced to GND, as specified in the Absolute Maximum Ratings table. This protection applies regardless of switch state or load condition, and is enforced by internal comparators and booster FETs that isolate the faulted terminal and clamp COM_ to the appropriate supply rail.

Does the MAX4513ESE+T require power-supply sequencing during startup?

No, the MAX4513ESE+T does not require power-supply sequencing. Its internal logic and fault-protection circuitry operate correctly whether V+ ramps before V−, V− before V+, or both supplies rise simultaneously. This eliminates the need for external sequencing components in multi-rail systems and ensures robust behavior during brown-out or asymmetric power-up scenarios - a key advantage over many competing analog switches.

How does the MAX4513ESE+T differ from the MAX4511 and MAX4512 variants?

The MAX4513ESE+T integrates two normally closed (NC) and two normally open (NO) SPST switches in one package, whereas MAX4511ESE+T has four NC switches and MAX4512ESE+T has four NO switches. All three share identical pinouts, fault protection, on-resistance, and supply ranges. The MAX4513ESE+T's mixed configuration enables redundant signal path architectures - e.g., keeping a safety monitor active (NC) while selectively enabling test points (NO) - without external logic.

Can the MAX4513ESE+T be used with a single +12V supply?

Yes, the MAX4513ESE+T operates from a single +12V supply by connecting V− to GND. In this configuration, the fault-protected analog range remains ±36V relative to GND, and the device maintains rail-to-rail operation from 0V to +12V. Electrical characteristics such as on-resistance (up to 525Ω max), leakage (10nA max at +85°C), and logic thresholds (0.8V/2.4V) are fully characterized and guaranteed for single-supply use per the datasheet's "Single +12V Supply" section.

What is the purpose of the N.C. pin (pin 12) on the MAX4513ESE+T?

Pin 12 on the MAX4513ESE+T is designated N.C. (No Connection) and is not internally bonded or connected to any circuit node. It must be left unconnected on the PCB - neither grounded nor tied to supply rails. This pin serves no electrical, thermal, or mechanical function; its presence maintains mechanical compatibility with the 16-pin SOIC-N package footprint used across the MAX451x family and legacy industry-standard switches like the DG201 series.