Analog Devices Inc./Maxim Integrated MAX4517EUK

Overview

MAX4517EUK from Maxim Integrated is a normally closed (NC), single-pole/single-throw (SPST), CMOS analog switch optimized for low-voltage dual-supply operation. It delivers 20Ω on-resistance at ±5V, 1nA off-leakage at +25°C, and rail-to-rail signal handling across ±1V to ±6V supplies-enabling precision signal routing in battery-powered audio and data-acquisition systems.

For engineers reviewing the MAX4517EUK datasheet, MAX4517EUK pinout, MAX4517EUK application, or MAX4517EUK equivalent, key selection criteria include guaranteed NC switching behavior, SOT23-5 package compatibility, -40°C to +85°C industrial temperature range, and verified performance in low-leakage, low-distortion analog paths.

Technical Context

The MAX4517EUK implements a fully differential CMOS transmission gate architecture with independent V+ and V− supply pins driving both analog signal path and internal logic translators. Its NC configuration ensures default conduction without control input, eliminating startup glitches in fail-safe signal paths.

Internal ESD diodes clamp analog terminals to V+ and V−, making leakage current highly dependent on signal voltage relative to supply rails. Charge injection is tightly controlled at ≤20pC, and switching times are asymmetric (t_ON = 100ns, t_OFF = 75ns at ±5V), supporting fast, low-glitch toggling in time-critical routing applications.

Key Specifications

Pinout & Package

SOT23-5 surface-mount package (3.0mm × 1.75mm × 1.3mm), lead-free, RoHS-compliant, tape-and-reel packaged for automated assembly.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX4517CUK, the MAX4517EUK provides extended temperature qualification essential for industrial deployment; versus ADG1419BRMZ, it trades higher R_ON for significantly lower leakage-making it superior for precision, low-power, battery-operated sensing nodes.

Availability

MAX4517EUK is available at Aetrix Electronics and suitable for battery-operated equipment, low-voltage data-acquisition systems, and cellular baseband signal routing requiring stable component supply across industrial temperature ranges.

Supply support for MAX4517EUK 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, communications, and consumer applications.

The MAX4516/MAX4517 family was engineered specifically for low-leakage, low-R_ON, dual-supply analog switching in space-constrained, battery-sensitive systems-prioritizing signal fidelity over raw speed or voltage range.

FAQ

What is the default switching state of the MAX4517EUK?

The MAX4517EUK is a normally closed (NC) analog switch: its NC and COM terminals are conductive when the IN pin is logic LOW (≤1.5V). Applying a logic HIGH (≥3.5V) to IN opens the path. This fail-safe behavior ensures signal continuity during power-up, reset, or control signal loss-making the MAX4517EUK ideal for safety-critical monitoring paths where interruption cannot be tolerated.

Does the MAX4517EUK support single-supply operation?

The MAX4517EUK is specified and tested for dual-supply operation from ±1V to ±6V. While it may function with a single supply (e.g., V+ = +5V, V− = GND), its logic thresholds and leakage performance are not guaranteed outside dual-rail conditions. For robust single-supply designs, Maxim recommends the pin-compatible MAX4514/MAX4515-so the MAX4517EUK should only be used in dual-supply configurations where its NC behavior and low leakage are required.

What is the maximum allowable analog signal voltage range for the MAX4517EUK?

The MAX4517EUK supports rail-to-rail analog signals: the voltage at NO, NC, or COM may swing continuously from V− to V+, regardless of supply magnitude. For example, with V+ = +5V and V− = −5V, analog signals from −5V to +5V pass unclipped. Exceeding these bounds forward-biases internal ESD diodes, risking damage-so the MAX4517EUK must never see analog voltages beyond its applied V+ and V− rails.

How does temperature affect off-leakage current in the MAX4517EUK?

Off-leakage current in the MAX4517EUK increases with temperature: it is guaranteed ≤1nA at +25°C but rises to ≤20nA at +85°C. This exponential rise stems from thermally activated reverse-bias conduction in internal ESD diodes. System designers using the MAX4517EUK in high-temperature data-acquisition must account for this-e.g., a 10MΩ sensor impedance will exhibit ~200mV offset drift at +85°C due to 20nA leakage alone.

Can the MAX4517EUK be used in high-frequency signal paths above 10MHz?

Yes-the MAX4517EUK maintains usable performance up to 250MHz in 50Ω systems, though off-isolation degrades with frequency (−48dB at 10MHz, decreasing ~20dB/decade). Its 20pC charge injection and 75ns t_OFF make it suitable for RF calibration loops and video switching, but layout parasitics dominate above 20MHz. For optimal HF behavior, the MAX4517EUK requires tight ground planes, minimized trace lengths, and careful decoupling-especially on V+ and V− pins.