Analog Devices Inc./Maxim Integrated MAX976ESA

Overview

MAX976ESA from Maxim Integrated is a dual, high-speed, low-power comparator optimized for single-supply +3V/+5V systems. It delivers 20ns propagation delay, 225µA supply current per comparator, and rail-to-rail output operation - enabling direct interface with CMOS/TTL logic in battery-powered threshold detection circuits.

For engineers reviewing the MAX976ESA datasheet, MAX976ESA pinout, MAX976ESA application, or MAX976ESA equivalent, key selection considerations include ground-sensing input capability (–0.2V to V_CC–1.2V), internal hysteresis (0.5–4.0mV input-referred), shutdown compatibility (via external control on MAX998 only), and µMAX® 8-pin package thermal performance (330mW at +70°C).

Technical Context

The MAX976ESA implements a CMOS-based comparator core with push-pull rail-to-rail outputs and input-stage common-mode range extending 200mV below ground. Its internal hysteresis ensures stable switching with slow-moving inputs, eliminating need for external feedback networks in basic discriminators.

It operates across +2.7V to +5.5V supply, supports continuous short-circuit fault tolerance on all pins, and maintains guaranteed propagation-delay matching (Δt_PD ≤ 1ns) between channels - critical for timing-sensitive dual-comparator functions like window detection.

Key Specifications

Pinout & Package

MAX976ESA is housed in an 8-pin µMAX® package (pin-compatible with SO-8 but 30% smaller footprint), with exposed pad for thermal enhancement. Package outline no. 21-0036, land pattern no. 90-0092.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LM393DR and TLV3501CDR, MAX976ESA uniquely balances 20ns speed, 225µA efficiency, rail-to-rail drive, and ground-sensing capability - making it optimal for space- and power-constrained dual-threshold detection where precision and integration matter.

Availability

MAX976ESA is available at Aetrix Electronics and suitable for battery-powered systems, IR receivers, and 3V industrial sensor interfaces requiring stable component supply and long-term production continuity.

Supply support for MAX976ESA 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) designs precision analog and mixed-signal ICs for industrial, medical, and communications applications.

The MAX976ESA belongs to Maxim's high-speed comparator family engineered for single-supply, low-power, ground-sensing operation in portable and space-constrained systems.

FAQ

What is the supply voltage range supported by the MAX976ESA?

The MAX976ESA operates from a single supply of +2.7V to +5.5V. This range enables direct compatibility with standard 3V and 5V logic systems without level translation. Operation below 2.7V is not specified, and absolute maximum supply is +6V - exceeding this risks permanent damage. The device maintains full performance across the entire –40°C to +85°C temperature range within this supply window.

Does the MAX976ESA include internal hysteresis, and what is its typical value?

Yes, the MAX976ESA features internal input-referred hysteresis ranging from 0.5mV (minimum) to 4.0mV (maximum). This hysteresis is factory-trimmed and ensures clean, chatter-free output transitions even with slow-moving or noisy input signals - eliminating the need for external positive-feedback networks in most threshold-detection applications. The value is process- and temperature-stable, with no user adjustment required.

Can the MAX976ESA inputs safely operate below ground potential?

Yes, the MAX976ESA inputs support a common-mode voltage range extending 200mV below ground (–0.2V minimum), allowing direct interface with ground-referenced sensors, current-sense amplifiers, or other circuits whose outputs swing to 0V. This ground-sensing capability is maintained across the full supply range (+2.7V to +5.5V) and temperature range (–40°C to +85°C), with no degradation in offset or propagation delay.

What package type is used for the MAX976ESA, and is it RoHS-compliant?

The MAX976ESA uses the 8-pin µMAX® package (outline no. 21-0036), a compact surface-mount variant with 30% smaller footprint than standard SO-8. The "+" suffix in the part number confirms RoHS compliance and lead-free finish. Thermal performance is rated at 330mW at +70°C with 4.10mW/°C derating above that temperature - verified per Maxim's package documentation.

How does the MAX976ESA compare to the MAX998EUT+ in terms of shutdown functionality?

The MAX976ESA does not include a shutdown pin; shutdown capability is exclusive to the single-channel MAX998EUT+, which features SHDN control to reduce supply current to 1nA and place the output in high-impedance state. The MAX976ESA remains fully active whenever powered - making it appropriate for always-on dual-comparator applications where channel independence and timing matching are prioritized over ultra-low quiescent power.