Analog Devices Inc./Maxim Integrated MAX14589EEWL+T

Overview

MAX14589EEWL+T from Maxim Integrated is a high-density, ±5V-capable double-pole double-throw (DPDT) analog switch with Beyond-the-Rails™ operation, 0.2 Ω typical on-resistance, -5.5V to +5.5V analog signal range, and 1.6V to 5.5V single-supply operation - designed for low-distortion audio routing in space-constrained portable devices.

For engineers reviewing the MAX14589EEWL+T datasheet, MAX14589EEWL+T pinout, MAX14589EEWL+T application, or MAX14589EEWL+T equivalent, key selection considerations include its rail-to-rail signal handling without external negative supply, click-and-pop–free switching (in MAX14594E variant), break-before-make timing, ESD robustness (±15kV HBM on COM/NO/NC), and wafer-level package footprint compatibility with high-density mobile PCB layouts.

Technical Context

The MAX14589EEWL+T implements a fully bidirectional DPDT analog switch topology with independent control via a single digital input (CB), enabling COM1/COM2 to connect either to NC1/NC2 (CB = low) or NO1/NO2 (CB = high). Its BiCMOS process enables ultra-low RON while supporting signals beyond VCCEN - including negative voltages down to -5.5V - without distortion or level-shifting circuitry.

Unlike the MAX14594E, the MAX14589EEWL+T lacks internal shunt resistors at NO1/NO2 terminals, so it does not provide automatic discharge of AC-coupling capacitors during switching. It maintains high off-isolation (-60 dB at 100 kHz), low THD+N (0.001%), and 200 MHz -3dB bandwidth for wideband analog signals up to 2 V_P-P.

Key Specifications

Pinout & Package

MAX14589EEWL+T uses a 1.2 mm × 1.2 mm, 0.4 mm pitch, 9-bump wafer-level package (WLP) with bottom-side solder bumps. The package is RoHS-compliant and optimized for fine-pitch, high-density mobile PCB assembly.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX14594EEWL+T, MAX14589EEWL+T offers lower RON and no shunt-induced leakage but lacks active click suppression; versus TMUX1574DSGR, it delivers true integrated DPDT functionality in half the footprint and with superior channel matching.

Availability

MAX14589EEWL+T is available at Aetrix Electronics and suitable for smartphone audio routing, tablet stereo channel selection, portable navigation audio mute, USB-C alternate mode audio switching, and high-density portable video equipment requiring stable component supply and long-term lifecycle support.

Supply support for MAX14589EEWL+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 applications in communications, computing, consumer, and industrial markets.

The MAX14589E product line targets high-density portable audio/video systems requiring rail-independent analog switching, low distortion, and extreme ESD resilience - with focus on minimizing PCB real estate and eliminating external support components.

FAQ

What is the maximum analog signal voltage the MAX14589EEWL+T can handle?

The MAX14589EEWL+T supports analog signals from -5.5V to +5.5V relative to GND, regardless of VCCEN level - a capability known as Beyond-the-Rails™ operation. This allows undistorted passage of audio or video signals that exceed the supply voltage, including negative voltages, without requiring external level-shifting circuitry or dual supplies. The device remains functional and non-damaging even when unpowered, provided signals stay within this range.

Does the MAX14589EEWL+T include internal shunt resistors for click-and-pop suppression?

No, the MAX14589EEWL+T does not include internal shunt resistors. That feature is exclusive to the MAX14594E variant (e.g., MAX14594EEWL+T), which integrates 500 Ω shunts at NO1 and NO2 to discharge AC-coupling capacitors during switching. The MAX14589EEWL+T relies on external design techniques for click suppression, offering lower RON and reduced off-state leakage as trade-offs.

What is the recommended bypass capacitor for VCCEN on the MAX14589EEWL+T?

A 0.1 µF ceramic capacitor must be placed as close as possible between VCCEN and GND pins of the MAX14589EEWL+T. This bypass capacitor stabilizes the supply during fast switching transitions and suppresses high-frequency noise coupling into the analog signal path. The datasheet specifies this value as mandatory for reliable operation across the full 1.6V–5.5V supply range and temperature extremes.

Can the MAX14589EEWL+T operate with a 1.6V supply and still pass ±5.5V analog signals?

Yes, the MAX14589EEWL+T is fully specified to operate from VCCEN = +1.6V while supporting analog signals from -5.5V to +5.5V - a core feature of its Beyond-the-Rails™ architecture. At 1.6V, typical RON increases slightly to 0.25 Ω, but signal integrity, THD+N (<0.001%), and off-isolation (-60 dB) remain guaranteed across the extended temperature range (-40°C to +85°C).

What is the thermal resistance (θ_JA) of the MAX14589EEWL+T WLP package?

The junction-to-ambient thermal resistance (θ_JA) of the MAX14589EEWL+T in its 1.2 mm × 1.2 mm wafer-level package is 83°C/W, measured per JEDEC JESD51-7 on a four-layer board. This value enables continuous power dissipation up to 963.8 mW at +70°C ambient, derating by 12 mW/°C above that temperature - sufficient for typical audio switching duty cycles without heatsinking.