Analog Devices Inc./Maxim Integrated MAX4511CPE

Overview

MAX4511CPE from Maxim Integrated is a quad SPST analog switch with normally closed (NC) configuration, fault-protected NC/NO terminals, ±36V fault tolerance with power applied, rail-to-rail signal handling up to ±15V supplies, and 175Ω max on-resistance. It serves in industrial data acquisition systems where overvoltage transients on sensor inputs must not disrupt downstream circuitry.

For engineers reviewing the MAX4511CPE datasheet, MAX4511CPE pinout, MAX4511CPE application, or MAX4511CPE equivalent, key selection criteria include fault protection voltage range, on-resistance matching across channels, leakage current at +85°C, logic threshold compatibility with TTL/CMOS, and dual-supply operational flexibility.

Technical Context

The MAX4511CPE employs parallel N- and P-channel FETs per switch to achieve low on-resistance and true rail-to-rail conduction. Its internal fault-detection comparators monitor NC/NO pins against V+ and V−, disabling signal paths and activating booster FETs to clamp COM output to the appropriate supply rail during overvoltage events.

During fault conditions, NC/NO terminals become high-impedance (>1 GΩ), while COM delivers up to ±10mA sourced/sunk from V+/V−. Power-off fault protection extends to ±40V, and no supply sequencing is required-V+ and V− may be applied independently within ±4.5V to ±18V limits.

Key Specifications

Pinout & Package

MAX4511CPE is supplied in a 16-pin plastic DIP package (0.300" width), through-hole mountable, with standard 0.1" pin spacing and JEDEC MS-001 compliant footprint.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX4511CSE, the MAX4511CPE offers identical performance in a through-hole DIP package for prototyping and serviceable industrial hardware; compared with ADG411BNZ, it adds robust fault protection essential for field-deployed equipment, at the cost of higher on-resistance and larger footprint.

Availability

MAX4511CPE is available at Aetrix Electronics and suitable for industrial process-control systems, avionics sensor interfaces, and automated test equipment requiring stable component supply across extended product lifecycles.

Supply support for MAX4511CPE 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.

The MAX4511 series belongs to Maxim's fault-protected analog switch product line, engineered specifically for reliable signal routing in electrically noisy or unpredictable environments where sensor or interconnect faults are probable.

FAQ

What is the maximum fault voltage the MAX4511CPE can withstand on its NC pins?

The MAX4511CPE withstands ±36V on NC/NO pins with power applied and ±40V with power removed. This rating applies only to NC and NO terminals - COM and IN pins are not fault protected and must remain within V− −0.3V to V+ +0.3V to avoid ESD diode conduction and potential damage. Exceeding these limits risks permanent device failure.

Does the MAX4511CPE require supply sequencing between V+ and V−?

No, the MAX4511CPE does not require supply sequencing. V+ and V− may be powered in any order or at different rates, supporting flexible power-up sequences in multi-rail systems. The internal logic and fault-protection circuitry operate correctly regardless of which supply rises first, as long as both remain within their absolute maximum ratings of −44V to +44V differential and −0.3V to +44V referenced to GND.

Can the MAX4511CPE operate from a single +12V supply?

Yes, the MAX4511CPE operates from a single +12V supply when V− is connected to GND. In this configuration, the fault-protected analog signal range remains ±36V on NC/NO pins, and the on-resistance increases to 260Ω max (vs. 175Ω at ±15V). Logic thresholds remain compatible with TTL/CMOS, and all four switches retain independent control via IN1–IN4.

What is the on-resistance matching specification for the MAX4511CPE?

The MAX4511CPE guarantees on-resistance matching of ≤10Ω maximum between any two channels at ±15V supplies and +25°C. This tight matching ensures consistent gain and phase response across multiplexed channels in instrumentation applications, reducing calibration burden and improving measurement repeatability in multi-sensor systems.

Is the MAX4511CPE pin-compatible with industry-standard analog switches?

Yes, the MAX4511CPE is pin-compatible with the DG201 and DG213 non-fault-protected analog switches. Its 16-pin DIP layout matches those legacy parts exactly, allowing direct replacement in existing PCBs - though designers must verify that only NC/NO pins require fault protection, as COM and IN pins retain standard CMOS switch behavior and lack built-in overvoltage resilience.