Analog Devices Inc./Maxim Integrated MAX969EEE-T

Overview

The MAX969EEE-T from Maxim Integrated is a quad micropower comparator with rail-to-rail inputs/outputs, 1.235V ±1.5% internal reference, programmable hysteresis via HYST pin, and open-drain outputs capable of sinking beyond VCC up to +6V. It operates from +1.6V to +5.5V single supply and draws only 14–22 µA total supply current over –40°C to +85°C - ideal for ultra-low-power 2-cell battery systems requiring precise voltage monitoring.

For engineers reviewing the MAX969EEE-T datasheet, MAX969EEE-T pinout, MAX969EEE-T application, or MAX969EEE-T equivalent, key selection criteria include its quad-channel architecture, integrated reference accuracy, hysteresis programmability, QSOP-16 package footprint, and compatibility with sub-2V operation in portable sensing and level-shifting circuits.

Technical Context

The MAX969EEE-T implements four independent comparators sharing a common 1.235V bandgap reference and a single HYST input that programs hysteresis for all channels simultaneously. Its rail-to-rail input common-mode range (–0.25V to VCC – 0.25V) and open-drain outputs enable direct interfacing across mixed-voltage domains without level translators.

Each comparator delivers 10 µs propagation delay at 50 mV overdrive, <6 mV input offset voltage (µMAX/QSOP), and ±10 nA HYST input leakage. The device supports continuous short-circuit tolerance on all I/O pins and maintains functionality down to 1.0V supply - though reference regulation and output sink strength degrade below 1.6V.

Key Specifications

Pinout & Package

The MAX969EEE-T is housed in a 16-pin QSOP package (E16-1), 3.9mm × 4.9mm body, 1.0mm height, 0.635mm pitch. Pin 1 is marked by a beveled corner; pin numbering proceeds counterclockwise.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV3704IPW and LM339AVQPWRQ1, the MAX969EEE-T uniquely combines quad-channel micropower operation, integrated ±1.5% reference, and programmable hysteresis in a single QSOP-16 package - making it optimal for compact, battery-powered systems requiring self-contained threshold detection.

Availability

The MAX969EEE-T is available at Aetrix Electronics and suitable for 2-cell battery monitoring, window comparator systems, voltage-level translation, and ground/supply-sensing applications requiring stable component supply and long-term lifecycle support.

Supply support for MAX969EEE-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, mixed-signal, and power management ICs for industrial, medical, communications, and consumer applications.

The MAX965–MAX970 family was engineered specifically for ultra-low-voltage, micropower comparator applications in portable and battery-operated systems - emphasizing rail-to-rail operation, integrated references, and minimal quiescent current.

FAQ

What is the operating temperature range for the MAX969EEE-T?

The MAX969EEE-T is specified for operation from –40°C to +85°C. All key parameters - including supply current (14–22 µA), reference voltage (1.235V ±2.5%), and input offset voltage (≤10 mV) - are guaranteed across this extended industrial temperature range, ensuring reliability in harsh environments.

Does the MAX969EEE-T require external components to use its internal reference?

No external components are required to use the internal 1.235V reference of the MAX969EEE-T. The REF pin can directly drive comparator inputs or external circuitry. For lowest noise, a 0.1µF bypass capacitor between REF and GND is recommended - but the reference functions without it.

Can the MAX969EEE-T operate from a 1.2V supply?

The MAX969EEE-T is not guaranteed to operate below +1.6V. While comparator functionality may persist down to ~1.0V, the internal reference ceases regulation below 1.5V, propagation delay increases significantly, and output sink capability degrades - so 1.2V operation is outside specification and not supported for reliable design.

How is hysteresis programmed on the MAX969EEE-T?

Hysteresis on the MAX969EEE-T is programmed by connecting two external resistors between REF, HYST, and GND. This configures a voltage divider that sets HYST pin voltage, yielding a hysteresis band from ±1 mV to ±50 mV. The HYST pin applies identical hysteresis to all four comparators simultaneously.

What is the maximum sink current capability of the MAX969EEE-T outputs?

The MAX969EEE-T open-drain outputs are rated to sink continuously into GND or VCC. Typical short-circuit sink current exceeds 10 mA at VCC = 5V and 25°C, decreasing at lower supplies and temperatures. Absolute maximum ratings allow indefinite short-circuit to either rail without damage.