Analog Devices Inc./Maxim Integrated MAX314EUE+T

Overview

MAX314EUE+T from Maxim Integrated is a quad, single-pole/single-throw (SPST) CMOS analog switch with two normally closed (NC) and two normally open (NO) channels. It delivers 6.5Ω typical on-resistance, 1.5Ω max on-resistance matching between channels, rail-to-rail signal handling, and operates from ±4.5V to ±20V dual supplies or +4.5V to +30V single supply. It is used in audio signal routing and data acquisition systems requiring low distortion and precise channel switching.

For engineers reviewing the MAX314EUE+T datasheet, MAX314EUE+T pinout, MAX314EUE+T application, or MAX314EUE+T equivalent, key selection criteria include verified on-resistance flatness (≤2Ω), guaranteed ESD protection (>2000V per Method 3015.7), crosstalk performance (>96dB at 20kHz), and TSSOP-16 package compatibility for high-density PCB layouts.

Technical Context

The MAX314EUE+T implements a fully complementary CMOS switch architecture enabling bidirectional conduction with symmetric on-resistance across all four SPST channels. Its logic interface accepts TTL/CMOS-compatible inputs referenced to VL (logic supply), independent of analog supply rails.

Each channel exhibits guaranteed R_ON flatness ≤2Ω over the full specified analog signal range (±10V with dual supplies, 0V to V+ with single supply) and maintains ≤2.5nA off-leakage at +85°C - critical for precision sample-and-hold and low-current sensor interfaces.

Key Specifications

Pinout & Package

MAX314EUE+T is housed in a 16-pin TSSOP package (4.4mm width), RoHS-compliant and moisture-sensitive level 1. Pin functions are electrically validated per Maxim's official pin description table and functional diagrams.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX314EUE+T, MAX314ESE+ offers identical functionality in a legacy SOIC package with higher thermal mass, while ADG414BRUZ trades R_ON performance and matching guarantees for broader supply tolerance and alternate sourcing - making MAX314EUE+T optimal for high-fidelity, space-constrained analog routing where channel consistency is non-negotiable.

Availability

MAX314EUE+T is available at Aetrix Electronics and suitable for audio signal routing, test equipment multiplexing, and avionics signal conditioning requiring stable component supply across extended temperature ranges (−40°C to +85°C).

Supply support for MAX314EUE+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 industrial, communications, and computing applications.

The MAX312/MAX313/MAX314 family targets high-fidelity analog switching in test, measurement, and signal routing systems where low on-resistance, tight matching, and rail-to-rail operation are mandatory.

FAQ

What is the maximum analog signal voltage range supported by the MAX314EUE+T?

The MAX314EUE+T supports analog signals from V− to V+, enabling ±10V operation with dual supplies (±4.5V to ±20V) or 0V to V+ with single supplies (+4.5V to +30V). Absolute maximum ratings allow V+ up to +44V and V− down to −44V, but functional analog range is constrained by supply rails. This rail-to-rail capability ensures full dynamic range utilization in precision instrumentation and audio circuits.

Does the MAX314EUE+T require external pull-up or pull-down resistors on its logic inputs?

No, the MAX314EUE+T does not require external pull-up or pull-down resistors on IN1–IN4. Its logic inputs are TTL/CMOS-compatible with guaranteed thresholds (VINH ≥ 2.4V, VINL ≤ 0.8V) and low input current (±0.5µA max), allowing direct connection to microcontroller GPIOs or FPGA outputs. The VL pin sets the logic reference, decoupling input thresholds from analog supply variations.

How does the MAX314EUE+T handle overvoltage conditions on analog pins beyond the supply rails?

The MAX314EUE+T includes internal ESD protection diodes that clamp analog pin voltages to V+ + 0.3V and V− − 2V. If signals exceed these limits, current must be externally limited to ≤30mA to avoid damage. For sustained overvoltage protection, external series resistors or blocking diodes (as shown in Figure 1 of the datasheet) are recommended - especially in industrial or avionics environments with transient surges.

Can the MAX314EUE+T be used in single-supply +5V systems?

Yes, the MAX314EUE+T operates in single-supply mode from +4.5V to +30V. With V+ = +5V and V− tied to GND, it supports analog signals from 0V to +5V. However, R_ON increases at lower supplies (e.g., ~12.5Ω at V+ = +5V per datasheet), and logic inputs still require VL = 2.7V–5.5V. For +5V-only systems, tie VL to V+ and ensure input logic levels meet the 0.8V/2.4V thresholds.

What is the thermal performance of the MAX314EUE+T in its TSSOP-16 package?

The MAX314EUE+T in TSSOP-16 has a thermal resistance θ_JA of 149°C/W (derating 6.7mW/°C above +70°C), resulting in a maximum continuous power dissipation of 457mW at TA = +70°C. Junction temperature must remain below +150°C; under worst-case conditions (e.g., 100mA per channel, 10Ω R_ON), power dissipation stays well within limits. For high-duty-cycle or ambient >+70°C applications, consider heatsinking or derating.