Analog Devices Inc./Maxim Integrated MAX913EUA+

Overview

The MAX913EUA+ from Maxim Integrated is a single, ultra-fast, low-power precision TTL comparator with differential inputs and complementary TTL outputs, 10ns typical propagation delay, ±5V or +5V single-supply operation, and stable linear-region behavior-ideal for high-speed zero-crossing detection and switching regulator feedback in industrial and telecom power systems.

For engineers reviewing the MAX913EUA+ datasheet, MAX913EUA+ pinout, MAX913EUA+ application, or MAX913EUA+ equivalent, this page delivers verified electrical parameters, µMAX package dimensions, latch-enabled comparator behavior, input voltage range extending below V−, and real-world design implications for noise-immune timing and low-offset signal discrimination.

Technical Context

The MAX913EUA+ employs a fully differential bipolar input stage with trimmed offset (0.8mV typ) and no built-in hysteresis, enabling high-resolution discrimination of slow-moving or low-amplitude signals without oscillation in the linear region. Its latch-enable (LE) pin provides transparent or latched output control independent of input slew rate.

It operates from ±5V or +5V supplies, with input common-mode range spanning −5.2V to +3.5V (±5V) or −0.2V to +3.5V (+5V), and delivers TTL-compatible VOH ≥2.4V (I_OUT = 10mA) and VOL ≤0.4V (I_SINK = 10mA), while drawing only 6mA per comparator from V+ at +25°C.

Key Specifications

Pinout & Package

MAX913EUA+ is housed in an 8-pin µMAX package (3.05mm × 3.05mm × 0.8mm, 0.5mm pitch), optimized for space-constrained PCB layouts in telecom and portable instrumentation.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-speed comparator applications.

Compared with LT1016CS8#PBF and ADCMP572BCPZ-R2, the MAX913EUA+ uniquely balances 10ns speed, latch control, sub-millivolt offset, and 6mA power-making it the only option that eliminates hysteresis while maintaining TTL compatibility and µMAX footprint efficiency.

Availability

MAX913EUA+ is available at Aetrix Electronics and suitable for switching regulators, zero-crossing detectors, and Ethernet line receivers requiring stable component supply across extended temperature ranges (−40°C to +85°C) and long-term production continuity.

Supply support for MAX913EUA+ 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 and mixed-signal ICs for industrial, communications, and computing applications, with emphasis on performance, integration, and reliability.

The MAX912/MAX913 family was engineered specifically for high-speed, low-power comparator applications demanding stable linear-region operation, latch control, and TTL compatibility-targeting power management, data acquisition, and telecom infrastructure.

FAQ

What is the maximum operating frequency supported by the MAX913EUA+?

The MAX913EUA+ supports input signal rates up to 85MHz under 20mV overdrive conditions, based on its 12ns maximum propagation delay. This makes it suitable for high-speed triggers and sampling circuits where precise edge timing is critical. The MAX913EUA+ achieves this without requiring minimum input slew rate, unlike many comparators that demand fast-rising edges to avoid metastability.

Does the MAX913EUA+ require external hysteresis for noise immunity?

No-the MAX913EUA+ does not require external hysteresis due to its inherent stability in the linear region. Its unique architecture prevents oscillation even with slow-moving or low-amplitude inputs, preserving resolution across the full input range. Adding hysteresis to the MAX913EUA+ would degrade accuracy by introducing an intentional offset band, contradicting its design intent.

Can the MAX913EUA+ operate from a single +5V supply?

Yes-the MAX913EUA+ supports single +5V operation with V− tied to GND, delivering a common-mode input range of −0.2V to +3.5V. In this configuration, it maintains 10ns typical propagation delay and 6mA supply current, making it ideal for 5V logic systems where negative supply rails are unavailable or impractical.

What is the purpose of the LE (Latch Enable) pin on the MAX913EUA+?

The LE pin on the MAX913EUA+ controls output latching: when LE is high or floating, Q and Q̄ hold their last valid state regardless of input changes; when LE is low, outputs respond transparently to differential input voltage. This eliminates external flip-flops in sampled-data systems and removes setup/hold timing constraints-simplifying timing-critical designs using the MAX913EUA+.

Is the MAX913EUA+ pin-compatible with other packages in the MAX913 family?

No-the MAX913EUA+ uses the 8-pin µMAX package (3.05mm × 3.05mm), while MAX913CPA (8-pin PDIP) and MAX913CSA (8-pin SO) have different footprints and thermal characteristics. Though electrically identical, mechanical replacement requires PCB redesign. The MAX913EUA+ offers the smallest board area and best thermal resistance among MAX913 variants, but is not mechanically interchangeable.