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. It delivers 20ns propagation delay, 225µA supply current per comparator, and rail-to-rail push-pull outputs - enabling direct interface with CMOS/TTL logic in battery-powered threshold detection and IR receiver 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), input common-mode range extending 200mV below ground, ±2mV input offset voltage, and 8-pin SO package compatibility with space-constrained industrial sensor interfaces.

Technical Context

The MAX976ESA+T implements a CMOS-based dual comparator architecture with internal hysteresis (0.5–4.0mV input-referred) to suppress noise-induced oscillation during slow input transitions. Its input stage supports a common-mode range of –0.2V to (VCC – 1.2V), allowing ground-sensing operation without level-shifting circuitry.

Each comparator features a push-pull output capable of sourcing/sinking 2mA while maintaining rail-to-rail swing (VOH ≥ VCC – 0.4V, VOL ≤ 0.4V at 2mA). All inputs and outputs tolerate continuous short-circuit faults to either rail, and the device operates across –40°C to +85°C with guaranteed PSRR (63dB min) and CMRR (66dB min) over full supply range (2.7V–5.5V).

Key Specifications

Pinout & Package

MAX976ESA+T is housed in an 8-pin SO (Small Outline) package with standard JEDEC MS-012AC outline, RoHS-compliant lead finish, and thermal pad not electrically connected.

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 TLV3501CDR offers superior speed but demands additional external components to match MAX976ESA+T's noise immunity and ground-sensing capability in real-world sensor interfaces.

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, long-term lifecycle support, and RoHS-compliant packaging.

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) is a U.S.-based semiconductor company specializing in high-performance analog and mixed-signal ICs for industrial, communications, and consumer applications.

The MAX976ESA+T belongs to Maxim's precision high-speed comparator product line, designed specifically for single-supply, low-power, ground-sensing applications in portable and space-constrained systems.

FAQ

What is the maximum operating supply voltage for MAX976ESA+T?

The MAX976ESA+T supports a supply voltage range of +2.7V to +5.5V, with absolute maximum rating of +6V on VCC. Operation above +5.5V risks permanent damage. The device is fully specified across this range, including propagation delay, offset voltage, and common-mode performance - making it suitable for both 3V and 5V systems without derating.

Does MAX976ESA+T support shutdown mode?

No, MAX976ESA+T does not include a shutdown function. Shutdown capability is exclusive to the MAX998 variant (e.g., MAX998EUT+T), which features a SHDN pin and 1nA shutdown current. The MAX976ESA+T is a dual comparator without enable/disable control - all channels remain active whenever VCC is applied.

Can MAX976ESA+T inputs be driven below ground?

Yes, MAX976ESA+T inputs accept common-mode voltages down to –0.2V relative to GND. This ground-sensing capability allows direct interface with sensors whose output swings slightly negative, eliminating the need for level-shifting circuitry or dual supplies in applications like thermocouple amplification or current-sense monitoring.

What is the output structure of MAX976ESA+T?

MAX976ESA+T uses a rail-to-rail push-pull output stage capable of sourcing and sinking 2mA. Unlike open-collector comparators, it requires no external pull-up resistor and delivers full logic swing (VOH ≥ VCC – 0.4V, VOL ≤ 0.4V) into CMOS/TTL loads - simplifying interface design and reducing component count in digital signal conditioning circuits.

Is MAX976ESA+T pin-compatible with other packages in the MAX976 family?

MAX976ESA+T (8-pin SO) shares identical pinout and functionality with MAX976EUA+ (8-pin µMAX), but not with MAX976 variants in different packages. Both SO and µMAX versions use the same pin numbering and electrical behavior - enabling drop-in replacement when footprint and thermal constraints permit. Always verify land pattern compatibility using Maxim's official package drawings (Outline No. 21-0041 for SO, 21-0036 for µMAX).