Analog Devices Inc./Maxim Integrated MAX9012EUA

Overview

MAX9012EUA from Maxim Integrated is a dual, high-speed, precision TTL comparator operating from a single 4.5V to 5.5V supply, featuring 5ns typical propagation delay, ±5.5mV input offset voltage over temperature, and stable operation with slow-moving or low-overdrive inputs. It delivers two independent comparator channels in an 8-pin µMAX package and is used in high-speed sampling circuits and zero-crossing detection where rail-to-rail input capability and output stability in the linear region are critical.

For engineers reviewing the MAX9012EUA datasheet, MAX9012EUA pinout, MAX9012EUA application, or MAX9012EUA equivalent, key selection criteria include dual-channel timing performance, TTL-compatible outputs without phase reversal below ground, latch-free architecture, and guaranteed -40°C to +85°C operation in space-constrained industrial and test equipment designs.

Technical Context

The MAX9012EUA implements fully differential bipolar input amplifiers with no built-in hysteresis, enabling high-resolution comparison down to sub-millivolt differentials without oscillation in the linear region. Its input common-mode range extends from -0.2V to (VCC – 1.9V), supporting signals 200mV below ground while maintaining correct logic decisions as long as at least one input remains within spec.

Each channel operates independently with matched propagation delay (≤500ps channel-to-channel skew), TTL-level outputs capable of sinking 4mA at 0.6V and sourcing 4mA at 2.4V, and no minimum input slew-rate requirement-making it suitable for DC-coupled, low-overdrive, and wideband applications up to 200MHz.

Key Specifications

Pinout & Package

MAX9012EUA is housed in an 8-pin µMAX package (3mm × 3mm, 0.8mm height), pin-compatible with industry-standard SO-8 but with 50% smaller footprint and thermal performance optimized for high-density PCBs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LMH7322MA/NOPB and ADCMP602BRMZ, the MAX9012EUA uniquely combines dual-channel integration, 5V compatibility, sub-ground input support, and linear-region stability in a compact µMAX package-making it optimal for space-constrained, single-supply industrial timing applications where reliability across temperature and input dynamics is critical.

Availability

MAX9012EUA is available at Aetrix Electronics and suitable for high-speed sampling circuits, zero-crossing detectors, signal squaring, and pulse-width discriminators requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MAX9012EUA 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 semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and computing markets.

The MAX9010–MAX9013 family was designed specifically for single-supply, high-speed comparator applications demanding precision, low power, and robustness against slow-moving or low-overdrive inputs-targeting test equipment, sensor interfaces, and real-time control systems.

FAQ

What is the maximum input overdrive voltage the MAX9012EUA can handle without damage?

The MAX9012EUA supports analog inputs from -0.3V to (V_CC + 0.3V) without permanent damage. While the specified common-mode range is -0.2V to (V_CC – 1.9V), either input may momentarily exceed those limits as long as voltage stays within absolute maximum ratings. The MAX9012EUA will still make correct logic decisions if at least one input remains inside the common-mode range.

Does the MAX9012EUA include a latch function like the MAX9011 or MAX9013?

No, the MAX9012EUA does not include a latch enable (LE) input. Unlike the MAX9011 and MAX9013, which feature TTL-compatible latch control, the MAX9012EUA is a latch-free dual comparator. Its outputs respond continuously to input changes, making it ideal for real-time threshold detection rather than sampled or held comparisons.

Can the MAX9012EUA operate with a 3.3V supply?

No, the MAX9012EUA is specified only for 4.5V to 5.5V single-supply operation. Attempting to power the MAX9012EUA from 3.3V violates its absolute minimum supply rating and will result in undefined output behavior, increased propagation delay, and potential failure to meet TTL output voltage thresholds (VOH/VOL). For 3.3V systems, consider the LMH7322MA/NOPB instead.

What is the thermal resistance (θ_JA) of the MAX9012EUA in its µMAX package?

The MAX9012EUA in the 8-pin µMAX package has a junction-to-ambient thermal resistance (θ_JA) of 222°C/W, calculated from its 362mW maximum power dissipation at +70°C ambient and 4.5mW/°C derating above that temperature. This value assumes standard JEDEC 2-layer board conditions; actual θ_JA improves significantly with internal copper planes and thermal vias.

Is the MAX9012EUA pin-compatible with the MAX9012ESA SO-8 variant?

Yes, the MAX9012EUA (µMAX) and MAX9012ESA (SO-8) share identical pin numbering, pin functions, and electrical specifications. Both use the same 8-pin configuration: GND (1), IN−A (2), IN+A (3), IN−B (4), V_CC (5), IN+B (6), OUTA (7), OUTB (8). Layout migration between packages requires only footprint change-no schematic or signal routing modification is needed for the MAX9012EUA.