Analog Devices Inc./Maxim Integrated MAX9052BEUA+

Overview

MAX9052BEUA+ from Analog Devices is a dual comparator with integrated 2.500V precision voltage reference in an 8-pin µMAX package, operating from 2.7V to 5.5V supply, consuming only 55µA typical supply current, featuring rail-to-rail inputs/outputs, ±3mV internal hysteresis, and 400ns propagation delay - ideal for low-power battery management and window detection circuits.

For engineers reviewing the MAX9052BEUA+ datasheet, MAX9052BEUA+ pinout, MAX9052BEUA+ application, or MAX9052BEUA+ equivalent, this page delivers verified functional role, validated pin assignments, confirmed A/B grade reference accuracy (1% initial), real-world timing behavior under capacitive load, and direct alternative part comparisons for design-in decisions.

Technical Context

The MAX9052BEUA+ integrates two independent comparators sharing a single high-stability 2.500V reference output, with each comparator offering rail-to-rail input common-mode range extending 250mV beyond VEE and VCC, and push-pull outputs capable of sinking/sourcing up to 8mA. Its internal hysteresis eliminates oscillation on slow signals without external components.

Reference performance is characterized by 1% initial accuracy (B grade), 100ppm/°C temperature coefficient, 200µs turn-on settling time, and stability with up to 4.7nF capacitive load - enabling direct use in precision thresholding without post-regulation filtering.

Key Specifications

Pinout & Package

MAX9052BEUA+ uses an 8-pin µMAX package (5.0mm × 3.0mm, 0.8mm height), RoHS-compliant, with exposed pad for thermal enhancement. Pin numbering follows standard µMAX top-view orientation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX9052AEUA+, the MAX9052BEUA+ trades reference precision for cost and robustness in less demanding industrial monitoring; versus TLV3702IDR, it delivers integrated reference functionality and 35% lower quiescent current, reducing power-supply filter complexity and PCB footprint.

Availability

MAX9052BEUA+ is available at Aetrix Electronics and suitable for battery management systems, industrial sensor interfaces, IR receiver modules, and digital line receiver designs requiring stable component supply and long-term lifecycle support.

Supply support for MAX9052BEUA+ 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

Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.

The MAX9052BEUA+ belongs to the MAX9038–MAX9053 micropower comparator + reference family, designed specifically for ultra-low-power, space-constrained applications where integrating precision reference and fast comparison reduces system-level component count and improves thermal matching.

FAQ

What is the reference voltage tolerance and temperature coefficient of the MAX9052BEUA+?

The MAX9052BEUA+ features a 2.500V precision reference with ±2.5mV (±0.1%) initial tolerance at +25°C and 1% total initial accuracy (B grade). Its temperature coefficient is 100ppm/°C over –40°C to +85°C, meaning output drift is limited to ±0.85mV across the full industrial temperature range. This is specified in the Electrical Characteristics table for B-grade devices.

Does the MAX9052BEUA+ require an external bypass capacitor on the REF pin?

No, the MAX9052BEUA+ does not require an external capacitor on the REF pin for stability - it is internally compensated and remains stable with capacitive loads up to 4.7nF. However, adding a 100nF ceramic capacitor is recommended in noisy environments or where step-load transients occur, as it improves transient response and reduces overshoot during reference turn-on or load changes.

Can both comparators in the MAX9052BEUA+ share the same reference voltage?

Yes, the MAX9052BEUA+ provides a single 2.500V reference output (pin 6) that can be used simultaneously by both comparators. The internal reference is shared and electrically isolated from comparator inputs, allowing independent threshold setting for OUTA and OUTB using resistor dividers tied to REF - no additional reference ICs or splitting networks are needed.

What is the maximum capacitive load the MAX9052BEUA+ output can drive while maintaining 400ns propagation delay?

The MAX9052BEUA+ maintains ≤400ns propagation delay (at 100mV overdrive) with capacitive loads up to 15pF. At 50pF, delay increases to ~500ns; at 200pF, it reaches ~800ns. For timing-critical applications, keep trace + load capacitance below 15pF or add a small series resistor (e.g., 10Ω) near the output to dampen ringing without significantly degrading speed.

Is the MAX9052BEUA+ pin-compatible with other devices in the MAX905x family?

Yes, the MAX9052BEUA+ is pin-compatible with MAX9052AEUA+, MAX9052AESA, and MAX9052BESA - all share identical 8-pin µMAX or SO pinouts (OUTA, INA+, INB−, INB+, VCC, REF, VEE, OUTB). However, it is not pin-compatible with MAX9053 variants (10-pin µMAX) or SOT23-packaged MAX9050/MAX9051, which have different pin counts and assignments.