Analog Devices Inc./Maxim Integrated MAX4517CUK-T

Overview

MAX4517CUK-T 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 MAX4517CUK-T datasheet, MAX4517CUK-T pinout, MAX4517CUK-T application, or MAX4517CUK-T equivalent, key selection criteria include guaranteed NC switching behavior, SOT23-5 package compatibility, low charge injection (20pC max), fast tON/tOFF (100ns/75ns), and dual-supply leakage performance across industrial temperature range.

Technical Context

The MAX4517CUK-T implements a fully differential CMOS transmission gate architecture with V+ and V− pins powering both analog switch elements and internal logic-level translators. Its NC configuration ensures COM-to-NC continuity when IN is low, with no internal ground reference - all logic thresholds referenced to V+.

ESD protection diodes connect each analog terminal (COM, NC, NO) to both V+ and V−, making leakage current highly dependent on analog signal voltage relative to supply rails. This design enables rail-to-rail operation but requires careful supply sequencing to avoid forward-biasing protection diodes during power-up.

Key Specifications

Pinout & Package

SOT23-5 surface-mount package (3.0mm × 1.75mm × 1.3mm), lead-free and RoHS-compliant, optimized for space-constrained portable designs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX4517CUK-T, MAX4517EUK-T extends thermal capability without altering electrical behavior, while ADG1419BRMZ-REEL7 trades leakage performance for lower RON at higher supply voltages - making MAX4517CUK-T optimal for commercial-grade, low-leakage, ±5V portable systems.

Availability

MAX4517CUK-T is available at Aetrix Electronics and suitable for battery-operated equipment, audio/video signal routing, and low-voltage data-acquisition systems requiring stable component supply and long-term commercial-grade availability.

Supply support for MAX4517CUK-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 precision analog, mixed-signal, and power-management ICs for demanding industrial, communications, and consumer applications.

The MAX4516/MAX4517 family targets low-voltage, low-leakage analog switching in portable and space-constrained systems - emphasizing rail-to-rail signal fidelity, minimal charge injection, and robust dual-supply operation.

FAQ

What is the switching configuration of the MAX4517CUK-T?

The MAX4517CUK-T is a normally closed (NC) SPST analog switch: COM and NC terminals are conductive when the IN pin is logic low (≤1.5V), and the path opens when IN is logic high (≥3.5V at ±5V supplies). This fail-safe behavior ensures continuity during power-down or control loss - a key distinction from the NO MAX4516CUK-T variant.

Does the MAX4517CUK-T support single-supply operation?

The MAX4517CUK-T is specified for dual-supply operation from ±1V to ±6V and is not characterized for single-supply use. While it may function with a single +2V to +12V rail, logic thresholds shift unpredictably, and leakage increases significantly. For single-supply designs, Maxim recommends the pin-compatible MAX4514/MAX4515 series instead of the MAX4517CUK-T.

What is the maximum allowable analog signal voltage range for the MAX4517CUK-T?

The MAX4517CUK-T supports rail-to-rail analog signals from V− to V+. With ±5V supplies, this means signals from -5V to +5V are fully supported without clipping or distortion. Exceeding V+ or falling below V− forward-biases internal ESD diodes, risking damage or increased leakage - so signal swing must stay strictly within the supply rails.

How does charge injection affect system performance with the MAX4517CUK-T?

Charge injection of ≤20pC in the MAX4517CUK-T causes a voltage glitch ΔVOUT = Q/CL on sampled nodes. In a 1000pF hold capacitor, this yields ≤20mV error - acceptable for 12-bit systems but limiting for 16-bit precision. System designers must minimize CL on COM/NC nodes or add reset pulses to mitigate sampling error caused by the MAX4517CUK-T's inherent charge transfer.

Is the MAX4517CUK-T pin-compatible with other packages in the MAX4516/MAX4517 family?

Yes - the MAX4517CUK-T in SOT23-5 shares identical pinout and function with MAX4517CPA (DIP-8) and MAX4517CSA (SO-8), differing only in package size and thermal characteristics. All variants use the same IN/NC/V−/V+/COM pin assignment and NC switching behavior, enabling drop-in replacement across form factors where board space and power dissipation allow.