Analog Devices Inc./Maxim Integrated MAX984CSE-T

Overview

MAX984CSE-T from Maxim Integrated is a quad ultra-low-power open-drain comparator with internal 1.182V ±2% voltage reference, 4µA max supply current over temperature, and dual-supply operation (±1.25V to ±5.5V). It features separate GND pin for output transistors, rail-to-rail input range (V− to V+ − 1.3V), and 12µs propagation delay at 10mV overdrive - ideal for battery-powered window detectors and level translators.

For engineers reviewing the MAX984CSE-T datasheet, MAX984CSE-T pinout, MAX984CSE-T application, or MAX984CSE-T equivalent, this page delivers verified technical context, exact pin functions, real-world use cases in power-good monitoring and bipolar-to-single-ended conversion, and validated alternative options for design continuity.

Technical Context

The MAX984CSE-T implements four independent comparators in a single 16-pin narrow SO package, each with open-drain output sinking to GND. Its internal bandgap reference is referenced to V−, not GND, and provides 1.182V ±2% accuracy over 0°C to +70°C.

Input common-mode range extends from V− to (V+ − 1.3V); outputs support up to 11V swing above V− and tolerate no-supply conditions (V+ = V−). Unlike MAX981–MAX983, it lacks HYST pin and internal hysteresis - hysteresis must be added externally via positive feedback.

Key Specifications

Pinout & Package

MAX984CSE-T is housed in a 16-pin narrow SOIC (SOICN) package, 0.150" wide, with standard JEDEC outline and gull-wing leads. Pin 1 is marked by notch or dot; device orientation follows standard SOIC top-view convention.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad comparator applications.

Compared with MAX984CSE-T, MAX974CSE offers tighter reference accuracy but identical pinout and power profile, while LM339DR trades micropower operation for broader supply flexibility and lower unit cost - selection depends on whether reference integration, quiescent current, or supply voltage range dominates the design requirement.

Availability

MAX984CSE-T is available at Aetrix Electronics and suitable for battery-powered systems, power-good monitoring circuits, and bipolar-to-single-ended conversion applications requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.

Supply support for MAX984CSE-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 power management, sensing, and signal conditioning in resource-constrained systems.

The MAX984CSE-T belongs to the MAX981–MAX984 micropower comparator family, engineered specifically for ultra-low-quiescent-current applications where battery life, small footprint, and integrated reference stability are critical - such as wearables, remote sensors, and energy-harvesting nodes.

FAQ

What is the reference voltage tolerance of the MAX984CSE-T over temperature?

The MAX984CSE-T features an internal 1.182V bandgap reference with ±2% accuracy over the commercial temperature range (0°C to +70°C). At +25°C, typical deviation is ±1.2%; full-range min/max values are 1.158V and 1.206V. This tolerance applies only when V− is used as the reference return - not GND.

Does the MAX984CSE-T support dual-supply operation, and what are the limits?

Yes, the MAX984CSE-T supports dual-supply operation from ±1.25V to ±5.5V. Total supply voltage (V+ − V−) must not exceed 11V. When used in dual-supply mode, V− connects to the negative rail, GND remains isolated for output-stage grounding, and REF remains referenced to V− - enabling true bipolar input sensing.

Can the MAX984CSE-T be used without its internal reference?

Yes - the REF pin may be left unconnected or grounded if an external reference is preferred. All four comparators remain fully functional. However, disabling REF does not reduce supply current, as the reference circuit is not gated; quiescent current stays ≤4µA regardless of REF usage.

What is the maximum sink current per output of the MAX984CSE-T?

Each open-drain output (OUTA–OUTD) of the MAX984CSE-T can sink up to 50mA continuously when VOUT = 0.4V and V+ = 5V. At lower supply voltages (e.g., 3V), sink capability decreases - e.g., ~15mA at V+ = 3V - due to reduced gate drive for the output N-channel MOSFET.

Is the MAX984CSE-T pin-compatible with other devices in the MAX98x family?

The MAX984CSE-T shares the same 16-pin narrow SO package and pinout with MAX974CSE and MAX974ESE, making them mechanically and electrically interchangeable. However, MAX984CSE-T has ±2% reference versus ±1% in MAX974 variants, and neither supports internal hysteresis - so functional compatibility requires verification of reference tolerance requirements.