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. It delivers 10ns typical propagation delay, ±5V or +5V single-supply operation, input range extending below the negative rail (–0.2V to +3.5V on +5V supply), 0.8mV offset voltage, and stable linear-region operation-enabling high-resolution zero-crossing detection in switching regulators.

For engineers reviewing the MAX913EUA datasheet, MAX913EUA pinout, MAX913EUA application, or MAX913EUA equivalent, this device is selected for high-speed analog-to-digital interface tasks where low power, latch-enabled sampling, and immunity to slow-slew input instability are critical-especially in V/F converters, Ethernet line receivers, and fast pulse discriminators.

Technical Context

The MAX913EUA employs a fully differential bipolar input stage with laser-trimmed offset and no built-in hysteresis, enabling true high-resolution comparison across its full common-mode range (–0.2V to +3.5V on +5V). Its latch-enable function operates transparently when LE is low and holds output state when LE is high or floating.

Unlike conventional high-speed comparators, the MAX913EUA remains stable during slow-moving input transitions through the linear region-eliminating oscillation without requiring external hysteresis or post-processing sampling. This behavior is guaranteed by internal architecture, not external circuitry.

Key Specifications

Pinout & Package

MAX913EUA is housed in an 8-pin µMAX package (3.05mm × 3.05mm, 0.6mm height), optimized for space-constrained PCB layouts while maintaining thermal derating of 4.5mW/°C above +70°C.

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 combines TTL-compatible outputs, integrated latch, single +5V operation, and linear-region stability-making it optimal for cost-sensitive, space-constrained industrial and communications systems requiring deterministic sampling without external logic.

Availability

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

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, mixed-signal, and power-management ICs for industrial, communications, and computing applications.

The MAX912/MAX913 family was engineered specifically for high-speed, low-power comparator applications demanding latch-enabled sampling, wide input range, and linear-region stability-targeting V/F converters, switching power supplies, and high-fidelity signal conditioning.

FAQ

What supply voltages does the MAX913EUA support?

The MAX913EUA operates from a single +5V supply (with V− tied to GND) or a ±5V split supply. It functions down to +4.5V on V+, and the input common-mode range on +5V supply is –0.2V to +3.5V. The MAX913EUA is not rated for 3.3V-only operation, and using supplies outside ±7V absolute maximum ratings risks permanent damage.

How does the latch enable (LE) pin function on the MAX913EUA?

On the MAX913EUA, the LE pin controls output transparency: when LE is low, Q and Q̅ respond in real time to the IN+/IN− differential voltage; when LE is high or left floating, the outputs hold their last valid state. This allows synchronous sampling without external latches. The MAX913EUA's latch has 2ns setup time and 5ns hold time, ensuring reliable capture at high clock rates.

Why does the MAX913EUA remain stable in the linear region while other comparators oscillate?

The MAX913EUA uses a proprietary bipolar input stage architecture with no internal hysteresis and carefully balanced gain-phase response-guaranteeing monotonic output transition even for slow-moving inputs crossing the threshold. Unlike many high-speed comparators, the MAX913EUA avoids oscillation in the linear region by design, eliminating the need for external hysteresis that degrades resolution. This behavior is verified across –40°C to +85°C.

Can the MAX913EUA accept input signals below ground?

Yes-the MAX913EUA supports input common-mode voltages down to –0.2V on a +5V supply (i.e., 200mV below GND), and down to –5.2V on ±5V supplies. This allows direct connection to AC-coupled sensors or transformer outputs without level-shifting bias networks. However, differential input voltage must stay within ±15V, and absolute input voltage relative to V− must not exceed –0.3V.

What is the thermal derating specification for the MAX913EUA µMAX package?

The MAX913EUA in the 8-pin µMAX package has a thermal derating factor of 4.5mW/°C above +70°C, with a maximum continuous power dissipation of 362mW at TA = +70°C. This reflects its compact 3.05mm × 3.05mm footprint and requires careful PCB copper area allocation and airflow consideration in high-density or high-ambient-temperature environments.