Analog Devices Inc./Maxim Integrated MAX4615EUD+

Overview

The MAX4615EUD+ from Analog Devices is a quad, low-voltage, high-speed, single-pole/single-throw (SPST) analog switch with normally closed (NC) configuration, operating from +2V to +5.5V supply, delivering 10Ω max on-resistance at +5V, 1Ω max channel-to-channel on-resistance match, and 12ns turn-on time. It serves as a precision signal routing device in battery-powered audio/video systems requiring rail-to-rail analog signal handling and TTL/CMOS logic compatibility.

For engineers reviewing the MAX4615EUD+ datasheet, MAX4615EUD+ pinout, MAX4615EUD+ application, or MAX4615EUD+ equivalent, key selection criteria include guaranteed on-resistance flatness over signal range, sub-6nA off-leakage at +85°C, NC-only switching topology, -40°C to +85°C extended temperature rating, and TSSOP-14 package compatibility with industry-standard 74HC4066 footprints.

Technical Context

The MAX4615EUD+ implements a CMOS-based SPST analog switch architecture with four independent normally closed channels, each featuring bidirectional rail-to-rail signal handling from GND to V+. Its control logic accepts TTL/CMOS-compatible thresholds (0.8V low, 2.4V high at +5V), enabling direct interface with microcontrollers without level-shifting.

Internally, matched transistor pairs ensure ≤1Ω on-resistance variation between channels and ≤1Ω flatness across the full analog signal range (0V to V+), while charge injection is tightly controlled at 6.5pC typical-critical for sample-and-hold accuracy and low-distortion audio routing.

Key Specifications

Pinout & Package

MAX4615EUD+ is housed in a 14-pin Thin Shrink Small Outline Package (TSSOP) with 0.65mm pitch, JEDEC MO-153 compliant, 5.0mm × 4.4mm body size, and exposed pad optional for thermal enhancement. Pin 1 marked by dot; pin count and layout identical to industry-standard 74HC4066.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX4615EUD+, MAX4615EUD-T offers identical performance in tape-and-reel format for volume manufacturing, while ADG1415YRUZ trades slightly higher on-resistance and slower switching for extended temperature range and superior ESD immunity-making it suitable for harsh environments where MAX4615EUD+'s 10Ω RON and 12ns speed are less critical than ruggedness.

Availability

MAX4615EUD+ is available at Aetrix Electronics and suitable for battery-operated equipment, audio/video signal routing, low-voltage data-acquisition systems, sample-and-hold circuits, and communication circuits requiring stable component supply across industrial and commercial temperature ranges.

Supply support for MAX4615EUD+ 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

Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets with precision signal chain solutions.

The MAX4615EUD+ belongs to the MAX461x family of low-voltage, high-speed analog switches designed specifically for precision signal routing in space-constrained, power-sensitive applications where rail-to-rail operation and tight parameter matching are essential.

FAQ

What is the maximum supply voltage rating for the MAX4615EUD+?

The MAX4615EUD+ has an absolute maximum supply voltage of +6V, but its specified operational range is +2V to +5.5V. Operating above +5.5V risks exceeding safe internal field oxide stress limits and may cause premature wear-out. For reliable long-term performance, maintain V+ within the 2–5.5V range, with +5V being the most common design point for optimal on-resistance and speed.

Does the MAX4615EUD+ support bidirectional analog signal flow?

Yes, the MAX4615EUD+ supports fully bidirectional analog signal flow on all NC and COM terminals. Each NC–COM path functions identically regardless of signal direction, with matched on-resistance and leakage characteristics. This enables flexible use in both source-to-load and load-to-source configurations-common in audio line drivers, sensor excitation circuits, and differential signal routing where polarity independence is required.

How does the MAX4615EUD+ achieve TTL/CMOS logic compatibility?

The MAX4615EUD+ achieves TTL/CMOS logic compatibility through guaranteed input voltage thresholds: VIN_L ≤ 0.8V (max) and VIN_H ≥ 2.4V (min) when operated at +5V supply. These thresholds align precisely with standard TTL output levels and 3.3V/5V CMOS logic families, allowing direct connection to microcontroller GPIO, FPGA I/O banks, and ASIC control lines without external level-shifting circuitry.

Can the MAX4615EUD+ be used with a +3.3V supply, and what performance changes occur?

Yes, the MAX4615EUD+ operates fully across +2V to +5.5V, including +3.3V. At +3.3V, on-resistance increases to 20Ω max (vs. 10Ω at +5V), turn-on time extends to 15ns max, and off-leakage remains ≤10nA at +85°C. These shifts are fully characterized in the datasheet and remain within specification-making +3.3V suitable for low-power portable designs where efficiency outweighs minimal RON or speed penalties.

What is the significance of "rail-to-rail" signal handling in the MAX4615EUD+?

"Rail-to-rail" signal handling in the MAX4615EUD+ means the analog switches pass signals from GND to V+ without clipping or distortion-even at the extremes of the supply range. This eliminates the need for external biasing networks or level shifters in unipolar systems (e.g., 0–3.3V sensor outputs feeding a 3.3V ADC), preserving dynamic range, simplifying PCB layout, and reducing bill-of-materials cost compared to non-rail-to-rail alternatives.