Analog Devices Inc./Maxim Integrated MAX992EKA+T

Overview

The MAX992EKA+T from Maxim Integrated is a dual, micropower, rail-to-rail input/output comparator with open-drain output stage, operating from +2.5V to +5.5V single supply or ±1.25V to ±2.75V dual supply. It delivers 120ns propagation delay, 48μA per comparator quiescent current, and ±2.5mV internal hysteresis - optimized for battery-powered level translation and zero-crossing detection in portable instrumentation.

For engineers reviewing the MAX992EKA+T datasheet, MAX992EKA+T pinout, MAX992EKA+T application, or MAX992EKA+T equivalent, key selection criteria include its open-drain output capable of pulling beyond VCC up to 6V above VEE, rail-to-rail input range extending 250mV beyond rails, and guaranteed −40°C to +85°C operation without phase reversal on overdriven inputs.

Technical Context

The MAX992EKA+T implements two independent comparators sharing a common supply domain, each featuring an open-drain output stage that supports level-shifting across voltage domains (e.g., 5V logic sensing into 3V systems). Its input stage provides rail-to-rail common-mode range (VEE − 0.25V to VCC + 0.25V) and ultra-low 1.0pA typical input bias current, enabling high-impedance sensor interfacing.

Internal hysteresis of ±2.5mV ensures clean switching with slow-moving signals, while the unique output architecture minimizes supply-current surges during transitions - reducing power-supply noise and eliminating need for large decoupling capacitors in space-constrained designs.

Key Specifications

Pinout & Package

The MAX992EKA+T is housed in an 8-pin μMAX® package (U8-1), measuring 3.0mm × 3.0mm × 0.8mm with exposed pad for thermal enhancement. This ultra-small outline supports high-density PCB layouts in handheld and wearable electronics.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LMV7215M5X/NOPB and TLV3702IDR, the MAX992EKA+T uniquely balances speed (120ns), micropower operation (48μA), and true open-drain flexibility (6V above VEE), making it optimal for dual-threshold detection in space- and power-constrained mixed-voltage systems.

Availability

The MAX992EKA+T is available at Aetrix Electronics and suitable for portable instrumentation, battery-powered IoT sensors, and industrial level-translating interfaces requiring stable component supply across long production lifecycles.

Supply support for MAX992EKA+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 high-performance analog, mixed-signal, and power-management ICs for industrial, automotive, and communications markets.

The MAX992EKA+T belongs to Maxim's high-speed micropower comparator family, designed specifically for precision threshold detection and voltage-domain bridging in energy-sensitive, space-constrained electronic systems.

FAQ

What is the maximum allowable voltage on the MAX992EKA+T open-drain output?

The MAX992EKA+T open-drain output can be pulled up to a maximum of +6V above VEE, regardless of VCC level. For example, with VEE = 0V and VCC = 3.3V, the output may be pulled to +6V - enabling safe interface to higher-voltage logic families without risk of damage. This specification is absolute and applies across the full −40°C to +85°C operating temperature range.

Does the MAX992EKA+T require external hysteresis for stable operation?

No, the MAX992EKA+T includes ±2.5mV internal hysteresis, which prevents output oscillation on slow-moving or noisy input signals. This built-in hysteresis eliminates the need for external positive-feedback resistors in most threshold-detection applications. External hysteresis can be added using the recommended three-resistor network if wider switching bands are required, as detailed in the MAX992EKA+T datasheet Figure 2.

Can the MAX992EKA+T operate from a single 2.5V supply?

Yes, the MAX992EKA+T is fully specified to operate from a single +2.5V supply (VCC = 2.5V, VEE = 0V), delivering 120ns propagation delay and 48μA per comparator quiescent current at +25°C. Its rail-to-rail input stage accepts common-mode voltages from −0.25V to +2.75V, and the open-drain output functions correctly with pullup to any voltage within its absolute maximum rating (≤6V above VEE).

What package type is used for the MAX992EKA+T, and is it RoHS compliant?

The MAX992EKA+T is supplied in an 8-pin μMAX® package (U8-1), measuring 3.0mm × 3.0mm × 0.8mm with exposed thermal pad. The "+T" suffix denotes tape-and-reel packaging, and the device is RoHS compliant per Maxim Integrated's standard manufacturing process. Package drawings and land patterns are available at maximintegrated.com/packages.

How does the MAX992EKA+T minimize power-supply noise during output switching?

The MAX992EKA+T employs a proprietary output-stage architecture that limits supply-current surges during transitions - reducing dynamic current spikes by orders of magnitude versus conventional comparators. As shown in the "Supply Current vs. Output Transition Frequency" plot, current increases only marginally up to 1MHz switching, virtually eliminating supply glitches and removing the need for large local decoupling capacitors in compact PCB layouts.