Analog Devices Inc./Maxim Integrated MAX9052AESA

Overview

MAX9052AESA from Analog Devices is a dual comparator with integrated 2.500V precision voltage reference in an 8-pin SO package, consuming only 55µA at 2.7V supply. It features rail-to-rail inputs/outputs, ±3mV internal hysteresis, 400ns propagation delay, and 1.0pA typical input bias current-designed for low-power battery management and window detection circuits.

For engineers reviewing the MAX9052AESA datasheet, MAX9052AESA pinout, MAX9052AESA application, or MAX9052AESA equivalent, this page delivers verified electrical parameters, SO-package terminal mapping, A-grade (±0.4% initial accuracy, 6ppm/°C tempco) reference performance, and dual-comparator timing behavior under dynamic load conditions.

Technical Context

The MAX9052AESA integrates two independent comparators sharing a single high-accuracy 2.500V reference. Each comparator supports rail-to-rail input operation extending 250mV beyond VEE and VCC, with common-mode rejection >52dB and PSRR >55dB across 2.7V–5.5V supply range.

Its output stage delivers rail-to-rail push-pull switching capable of sinking/source up to 8mA while limiting supply-current surges during transitions-enabling stable operation without large bypass capacitors even at 1MHz switching frequency.

Key Specifications

Pinout & Package

MAX9052AESA uses an 8-pin SO (Small Outline) package with standard 150mil body width and 0.050" lead pitch. Pin 1 is marked by a beveled corner or dot; device orientation follows JEDEC MS-012.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX9052BEUA, the MAX9052AESA offers tighter reference accuracy and lower temperature drift-critical for industrial battery gauging. Against TLV3702IDR, it reduces system-level component count and improves power efficiency by integrating the reference, though at fixed 2.500V output.

Availability

MAX9052AESA is available at Aetrix Electronics and suitable for precision battery management, window comparator circuits, IR receivers, level translators, and digital line receivers requiring stable component supply across automotive, industrial, and medical OEM programs.

Supply support for MAX9052AESA 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 MAX9052AESA belongs to the MAX9038–MAX9053 micropower comparator + reference family, engineered for ultra-low-power sensing and threshold-detection applications in battery-constrained and thermally demanding environments.

FAQ

What is the reference voltage accuracy and temperature coefficient of the MAX9052AESA?

The MAX9052AESA features an A-grade 2.500V precision reference with ±0.4% initial accuracy over temperature and a typical temperature coefficient of 6ppm/°C. This specification is guaranteed across the full -40°C to +85°C operating range and enables stable threshold generation in precision analog monitoring applications without external calibration.

Does the MAX9052AESA require an external capacitor on the REF pin for stability?

No, the MAX9052AESA does not require an external capacitor on the REF pin for stability. It is designed to remain stable with capacitive loads from 0 to 4.7nF. An output capacitor may be added to improve transient response during step-load changes, but it is optional for steady-state operation.

What is the maximum load current the REF pin can source or sink in the MAX9052AESA?

The REF pin of the MAX9052AESA can source or sink up to ±500µA of load current while maintaining output voltage accuracy within specification. This capability allows direct driving of comparator input dividers, ADC reference inputs, or small-signal bias networks without additional buffering.

How does the MAX9052AESA minimize supply-line glitches during output switching?

The MAX9052AESA employs a unique output-stage design that limits supply current surges during transitions, virtually eliminating the supply glitches common in conventional comparators. This feature reduces or eliminates the need for large bypass capacitors-simplifying PCB layout and improving reliability in noise-sensitive mixed-signal systems.

Can the MAX9052AESA operate from a 2.5V supply?

No, the MAX9052AESA requires a minimum supply voltage of 2.7V per its specified operating range (2.7V to 5.5V). While some related devices like the MAX9040–MAX9043 support 2.5V operation, the MAX9052AESA's reference architecture and comparator core are optimized for ≥2.7V-ensuring full specification compliance including reference accuracy and propagation delay.