Analog Devices Inc./Maxim Integrated MAX4559CSE+T

Overview

The MAX4559CSE+T from Analog Devices is a dual 4-to-1 CMOS analog multiplexer configured for bidirectional signal routing in low-voltage systems, featuring ±15kV HBM ESD protection on all X/Y signal pins, 160Ω typical on-resistance at ±5V supply, and rail-to-rail analog signal handling up to ±6V. It operates across 0°C to +70°C and is used in audio/video switching, battery-powered instrumentation, and high-ESD industrial interfaces.

For engineers reviewing the MAX4559CSE+T datasheet, MAX4559CSE+T pinout, MAX4559CSE+T application, or MAX4559CSE+T equivalent, key selection criteria include guaranteed R_ON matching (≤2Ω typ), sub-1nA off-leakage at +25°C, break-before-make timing (≤15ns), and compatibility with TTL/CMOS logic under single +5V or dual ±5V supplies.

Technical Context

The MAX4559CSE+T implements two independent 4-to-1 analog multiplexers sharing common address lines (A, B) and enable control, supporting simultaneous channel selection across both banks. Its internal architecture uses CMOS transmission gates with integrated SCR-based ESD protection on all X/Y analog terminals (X0–X3, Y0–Y3, X, Y), enabling robust operation without external clamping diodes.

Signal integrity is maintained via low charge injection (≤2.4pC), high off-isolation (−96dB at 100kHz), and minimal crosstalk (−93dB), with dynamic performance validated at 300Ω load and 35pF capacitance. Logic thresholds are fixed at +0.8V/+2.4V, ensuring reliable switching with standard +5V digital controllers.

Key Specifications

Pinout & Package

MAX4559CSE+T is housed in a 16-pin narrow SO package (SOIC-N), 3.9mm width, RoHS-compliant, with standard 1.27mm pitch and gull-wing leads.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADG1408BRUZ and TS5A23159DCKR, the MAX4559CSE+T uniquely delivers synchronized dual 4-to-1 routing, guaranteed sub-2Ω R_ON matching, and factory-tested ±15kV ESD protection - making it optimal for compact, high-integrity analog signal management in space-constrained portable systems.

Availability

MAX4559CSE+T is available at Aetrix Electronics and suitable for audio routing, portable instrumentation, and industrial control applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for MAX4559CSE+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

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

The MAX4559CSE+T belongs to the MAX45xx family of ESD-hardened analog switches and multiplexers, designed specifically for reliable signal routing in harsh electromagnetic environments and battery-operated equipment.

FAQ

What is the maximum supply voltage range supported by the MAX4559CSE+T?

The MAX4559CSE+T supports dual supplies from ±2V to ±6V or a single supply from +2V to +12V. This wide range allows operation in both low-voltage portable systems (e.g., +3.3V) and higher-voltage industrial interfaces (e.g., ±5V or +12V), while maintaining rail-to-rail analog signal handling across the full supply span. The MAX4559CSE+T datasheet specifies absolute maximum ratings up to ±13V on VCC/VEE relative to GND.

Does the MAX4559CSE+T require external ESD protection components?

No, the MAX4559CSE+T does not require external ESD protection components. It integrates on-chip SCR-based protection rated for ±15kV per Human Body Model on all X/Y analog pins (X0–X3, Y0–Y3, X, Y), validated per IEC 1000-4-2 standards. This eliminates the need for discrete TVS diodes or RC filters in most end-equipment designs, reducing BOM count and PCB area. The MAX4559CSE+T's internal protection activates in nanoseconds and safely shunts ESD current to GND.

How does the MAX4559CSE+T handle logic-level compatibility with +3.3V microcontrollers?

The MAX4559CSE+T maintains TTL/CMOS logic compatibility down to +2.7V supply: its input thresholds are guaranteed at +0.5V (low) and +1.5V (high) under +3V operation, ensuring reliable recognition of +3.3V GPIO outputs without level shifters. When powered from +5V, thresholds tighten to +0.8V/+2.4V, fully compatible with standard microcontroller I/O. The MAX4559CSE+T's logic inputs draw less than 1µA, minimizing loading on driving ICs.

What is the significance of the 2Ω typical R_ON match specification for the MAX4559CSE+T?

The 2Ω typical R_ON match (ΔR_ON) means the difference between the highest and lowest on-resistance values across all eight switched channels remains tightly controlled. This ensures consistent gain, attenuation, and time constants when routing signals through different paths - critical for differential measurements, ratiometric sensor systems, or multi-channel data acquisition where channel-to-channel mismatch directly impacts measurement accuracy. The MAX4559CSE+T guarantees this match over temperature and supply voltage variations.

Can the MAX4559CSE+T operate with unbalanced dual supplies, such as +5V and −3V?

Yes, the MAX4559CSE+T can operate with unbalanced dual supplies like +5V and −3V, provided both VCC and VEE remain within their absolute maximum ratings (VCC ≥ −0.3V, VEE ≤ VCC + 0.3V) and the analog signal stays within the rails (VEE to VCC). Performance parameters - including R_ON, leakage, and bandwidth - are characterized across the full ±2V to ±6V symmetric range but remain functional outside it. However, the MAX4559CSE+T's ESD protection SCRs are optimized for balanced rails; asymmetric operation may slightly reduce holding-current margin during ESD events.