Analog Devices Inc./Maxim Integrated MAX9012EUA+T

Overview

MAX9012EUA+T from Maxim Integrated is a dual, high-speed, precision TTL comparator operating from a single 4.5V to 5.5V supply. It features 5ns typical propagation delay, ±5.5mV input offset voltage over temperature, and stable operation with slow-moving or low-overdrive inputs. Designed for space-constrained industrial and test equipment, it delivers reliable zero-crossing detection and high-speed sampling in dual-channel configurations.

For engineers reviewing the MAX9012EUA+T datasheet, MAX9012EUA+T pinout, MAX9012EUA+T application, or MAX9012EUA+T equivalent, this page provides verified electrical parameters, µMAX-8 package details, latch-free dual-comparator functionality, and real-world timing behavior under low-overdrive conditions.

Technical Context

The MAX9012EUA+T implements fully differential bipolar input amplifiers with no built-in hysteresis, enabling high-resolution comparison without signal degradation. Its input common-mode range extends from –0.2V to (VCC – 1.9V), supporting ground-referenced signals and allowing one input to go as low as –0.3V without damage or phase reversal.

Each channel operates independently with TTL-compatible outputs, 2.4mA typical supply current per device, and guaranteed channel-to-channel propagation delay matching of ≤500ps. The absence of latch logic distinguishes it from MAX9011/MAX9013 variants, simplifying timing-critical trigger and squaring applications requiring minimal latency and deterministic response.

Key Specifications

Pinout & Package

The MAX9012EUA+T is housed in an 8-pin µMAX package (3mm × 3mm, 0.8mm height), pin-compatible with SO-8 but with significantly reduced footprint and thermal resistance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX9012EUA+T, LMH7322MA/NOPB offers wider supply flexibility but sacrifices ground-below input capability and extended temperature support, while ADCMP602BRMZ-REEL delivers superior speed and input range but requires two devices to match dual-channel functionality and lacks guaranteed industrial temperature operation.

Availability

MAX9012EUA+T is available at Aetrix Electronics and suitable for high-speed signal conditioning, industrial sensor interfaces, and automated test equipment requiring stable component supply across extended temperature ranges.

Supply support for MAX9012EUA+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 semiconductor company specializing in precision analog, mixed-signal, and high-speed interface ICs for industrial, communications, and computing applications.

The MAX9010–MAX9013 family was designed specifically for low-power, single-supply, high-speed comparator applications demanding precision, stability in the linear region, and TTL-compatible outputs in miniature packages.

FAQ

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

The MAX9012EUA+T supports analog input voltages from –0.3V to (VCC + 0.3V) without permanent damage. This means at VCC = 5.5V, inputs may safely reach –0.3V to +5.8V. However, correct logic decisions require at least one input within the specified common-mode range of –0.2V to (VCC – 1.9V). The MAX9012EUA+T remains functional and phase-stable even when driven 200mV below ground, provided the absolute limits are not exceeded.

Does the MAX9012EUA+T include a latch function like some other comparators in the MAX901x family?

No, the MAX9012EUA+T does not include a latch enable (LE) input. Unlike the MAX9011EUT-T or MAX9013EUA, the MAX9012EUA+T is a latch-free dual comparator. Its outputs respond immediately to input changes with no hold or transparent mode control. This makes the MAX9012EUA+T ideal for applications requiring minimal latency and deterministic real-time response, such as high-speed sampling or synchronous edge detection.

What is the typical power supply current consumption of the MAX9012EUA+T at +25°C?

The MAX9012EUA+T draws 2.4mA typical quiescent supply current at +25°C with VCC = 5V. This value represents total current for both comparators under worst-case output loading (both outputs at VOL). Supply current varies slightly with supply voltage and temperature - ranging from ~2.1mA at VCC = 4.5V to ~2.7mA at VCC = 5.5V - and increases by approximately 0.3mA over the full –40°C to +85°C range.

Can the MAX9012EUA+T operate reliably with input signals slower than 1MHz?

Yes, the MAX9012EUA+T operates reliably from DC up to 200MHz due to its unique architecture that eliminates oscillation in the linear region. Unlike many high-speed comparators, it imposes no minimum input slew-rate requirement. This allows the MAX9012EUA+T to accurately resolve slow-moving signals - such as thermocouple outputs or precision DAC ramps - without added hysteresis or external compensation, preserving resolution and avoiding false triggering.

Is the MAX9012EUA+T pin-compatible with standard SO-8 packages?

The MAX9012EUA+T uses the 8-pin µMAX package, which shares the same 1.27mm pin pitch and pin numbering as SO-8 but features a smaller 3mm × 3mm body and exposed pad. While footprint and pinout match SO-8 mechanically, the µMAX requires different solder stencil design and reflow profile due to its thinner profile and thermal pad. The MAX9012ESA variant is the SO-8 version; both share identical electrical specs and pin functions, enabling direct layout migration with minor PCB adjustments.