Analog Devices Inc./Maxim Integrated MAX307EUI+T

Overview

MAX307EUI+T from Maxim Integrated is a precision, differential 2-of-8 CMOS analog multiplexer designed for high-fidelity signal routing in demanding mixed-signal systems. It delivers <100Ω on-resistance (max), <5Ω channel-to-channel matching, <10pC charge injection, <2.5nA NO off-leakage at +85°C, and operates from ±4.5V to ±20V or +5V to +30V supplies - enabling rail-to-rail analog signal handling in test equipment and military radios.

For engineers reviewing the MAX307EUI+T datasheet, MAX307EUI+T pinout, MAX307EUI+T application, or MAX307EUI+T equivalent, this page provides verified technical context, real-world design meaning of key specs, validated pin functions, application-specific implementation value, and two confirmed alternative parts with documented functional and application-level differences.

Technical Context

The MAX307EUI+T implements a dual 8-channel differential architecture with independent COMA and COMB outputs, controlled by three address inputs (A0–A2) and an active-high enable (EN). Its silicon-gate CMOS process ensures TTL/CMOS-compatible logic inputs and guarantees break-before-make switching (10–40ns) to prevent signal shorting during channel transitions.

It features matched on-resistance flatness (≤7Ω max over ±10V range), low temperature drift (RON stable from –40°C to +85°C), and ESD protection >2000V - all critical for precision sample-and-hold circuits and battery-operated guidance systems where leakage, distortion, and reliability are non-negotiable.

Key Specifications

Pinout & Package

MAX307EUI+T is housed in a 28-pin TSSOP package (U28+2 outline), 4.4mm × 9.7mm body, 0.65mm pitch, RoHS-compliant, with exposed pad for thermal enhancement.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX307EUI+T, MAX307EWI+ offers identical electrical performance in a larger SO package ideal for prototyping or thermal-heavy layouts, while ADG507AKRZ trades precision matching and dual differential outputs for broader availability and lower unit cost in less demanding signal chains.

Availability

MAX307EUI+T is available at Aetrix Electronics and suitable for test equipment, military radios, guidance and control systems, and battery-operated systems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MAX307EUI+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) is a leader in precision analog, mixed-signal, and high-reliability semiconductor solutions for industrial, automotive, and defense markets.

The MAX306/MAX307 product line was engineered specifically for high-accuracy, low-distortion analog signal routing in mission-critical instrumentation and ruggedized communications hardware - emphasizing leakage control, channel matching, and robust supply flexibility.

FAQ

What is the operating temperature range for MAX307EUI+T?

The MAX307EUI+T is rated for –40°C to +85°C ambient operation, validated across all electrical parameters including on-resistance, leakage, and switching speed. This extended industrial temperature grade makes it suitable for deployment in vehicle-mounted radios, outdoor test gear, and avionics subsystems where thermal cycling is routine. The MAX307EUI+T maintains guaranteed <5Ω RON matching and <2.5nA NO off-leakage throughout this full range.

Does MAX307EUI+T support single-supply operation?

Yes, MAX307EUI+T supports single-supply operation from +5V to +30V, with V− connected to ground. In this configuration, the analog signal range is 0V to V+, e.g., 0–12V at +12V supply. The device retains TTL/CMOS logic compatibility, low leakage, and fast switching - making MAX307EUI+T ideal for portable instrumentation powered by Li-ion batteries or regulated DC rails without negative supplies.

Is MAX307EUI+T pin-compatible with industry-standard alternatives?

Yes, MAX307EUI+T is a plug-in upgrade for the DG407 and DG507A, sharing identical pinout, function mapping, and supply requirements. No PCB changes are needed when replacing those legacy parts. However, MAX307EUI+T adds improved specifications: lower on-resistance (100Ω vs. 120Ω), tighter matching (<5Ω vs. <10Ω), and enhanced ESD protection (>2000V vs. ~1000V), delivering measurable performance gains without layout modification.

What is the maximum analog signal voltage supported by MAX307EUI+T?

MAX307EUI+T supports analog signals from V− to V+, with absolute maximum ratings of (V− − 2V) to (V+ + 2V) on NO and COM pins. At ±15V supplies, the usable analog range is ±15V; at +12V/V− = 0V, it is 0–12V. Exceeding these limits risks clamping or damage. The MAX307EUI+T's rail-to-rail capability ensures full utilization of the supply rails - critical for maximizing dynamic range in sensor signal conditioning.

How does the dual differential architecture of MAX307EUI+T improve noise immunity?

The MAX307EUI+T's dual differential structure - with separate COMA/COMB outputs and independent NO1A–NO8A and NO1B–NO8B banks - enables true differential signal routing, rejecting common-mode noise in high-interference environments like radar platforms or motor drives. Each differential pair maintains matched on-resistance (<5Ω), preserving CMRR across channels. This architecture is intrinsic to MAX307EUI+T and not available in single-output muxes like the MAX306 series.