Analog Devices Inc./Maxim Integrated MAX976ESA-T

Overview

MAX976ESA-T from Maxim Integrated is a dual, high-speed, low-power comparator optimized for +3V/+5V single-supply operation in space-constrained systems. It delivers 20ns propagation delay, 225µA supply current per comparator, rail-to-rail output drive, and ground-sensing inputs (–0.2V to V_CC – 1.2V common-mode range), enabling direct interface with CMOS/TTL logic in battery-powered threshold detection circuits.

For engineers reviewing the MAX976ESA-T datasheet, MAX976ESA-T pinout, MAX976ESA-T application, or MAX976ESA-T equivalent, key selection criteria include shutdown capability (not supported on MAX976), propagation-delay matching (1ns Δt_PD), input offset voltage (±2mV max), and µMAX-8 package compatibility with automated SMT assembly.

Technical Context

The MAX976ESA-T implements a CMOS-input, push-pull output architecture with internal hysteresis (0.5–4.0mV input-referred) to suppress noise-induced oscillation during slow signal transitions. Its input stage supports common-mode voltages extending 200mV below ground while maintaining valid output logic states as long as at least one input remains within specification.

Each comparator operates independently with rail-to-rail sourcing/sinking capability (2mA load), tolerates continuous short-circuit faults to either rail, and exhibits 66dB CMRR and 63dB PSRR over 2.7V–5.5V supply range - critical for stable operation in noisy 3V embedded sensor interfaces.

Key Specifications

Pinout & Package

MAX976ESA-T is housed in an 8-pin µMAX® package (pin-compatible with SO-8 but 30% smaller footprint), specified for –40°C to +85°C operation and RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX976ESA-T, LM393DR trades speed and integration for cost, while TLV3502IDR improves speed and power efficiency at the expense of ground-sensing capability - making MAX976ESA-T optimal for 3V battery systems needing robust, direct-interface threshold detection.

Availability

MAX976ESA-T is available at Aetrix Electronics and suitable for battery-powered systems, IR receivers, and 3V industrial sensor interfaces requiring stable component supply across extended temperature ranges and long production lifecycles.

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

The MAX976 belongs to Maxim's high-speed comparator product line, engineered specifically for single-supply, low-power, space-constrained applications requiring fast, reliable signal conditioning in portable and embedded systems.

FAQ

What is the operating supply voltage range for the MAX976ESA-T?

The MAX976ESA-T operates from a single supply of +2.7V to +5.5V. This range supports direct integration into modern 3V and 5V systems without level translation. Operation outside this range - including exposure to absolute maximum ratings such as +6V supply - may cause permanent damage. The device is fully specified across this range, with parameters like propagation delay and input offset voltage guaranteed from –40°C to +85°C ambient temperature.

Does the MAX976ESA-T support shutdown mode?

No, the MAX976ESA-T does not include a shutdown function. Unlike the MAX998EUT+T (which features a SHDN pin reducing supply current to 1nA), the MAX976ESA-T has no dedicated shutdown terminal. Its 8-pin µMAX package contains only V_CC, GND, two differential inputs, and two outputs per channel - all pins are active during operation. For applications requiring ultra-low standby current, the MAX998EUT+T in SOT23-6 is the family member designed with that capability.

What is the input common-mode voltage range of the MAX976ESA-T?

The MAX976ESA-T accepts input voltages from –0.2V to V_CC – 1.2V. This ground-sensing capability allows direct connection to transducers or sensors whose output swings slightly below ground - a key advantage over comparators limited to 0V minimum input. The specification is guaranteed across the full –40°C to +85°C temperature range and applies independently to each input pin, provided the other remains within range to avoid false inversion.

Can the MAX976ESA-T drive CMOS and TTL logic directly?

Yes, the MAX976ESA-T can drive CMOS and TTL logic directly due to its rail-to-rail push-pull outputs. At 2mA load, VOH reaches V_CC – 0.1V and VOL drops to 0.1V - meeting standard 3.3V and 5V logic high/low thresholds without external pull-up resistors. This eliminates board space and component count in digital interface stages, and the output structure tolerates continuous short-circuit faults to either rail, enhancing system robustness.

What package type is used for the MAX976ESA-T?

The MAX976ESA-T uses the 8-pin µMAX® package - a proprietary Maxim footprint that is pin-compatible with standard SO-8 but occupies approximately 30% less PCB area. It features a 3mm × 3mm body size, exposed pad for thermal enhancement, and RoHS-compliant lead-free termination (denoted by the "+" suffix). Land pattern number 90-0092 and outline 21-0036 apply; official mechanical drawings are available at maximintegrated.com/packages.