Analog Devices Inc./Maxim Integrated MAX9064EUK+T

Overview

MAX9064EUK+T from Analog Devices is a nanoPower single comparator with integrated 0.2V reference, push-pull output, and 5-pin SOT23 package. It operates from 1.0V to 5.5V supply, draws ≤700nA quiescent current, features 15µs propagation delay, and supports -40°C to +85°C operation - ideal for low-voltage battery monitoring in portable medical devices.

For engineers reviewing the MAX9064EUK+T datasheet, MAX9064EUK+T pinout, MAX9064EUK+T application, or MAX9064EUK+T equivalent, key selection criteria include its internal 0.2V reference accuracy (±12mV hysteresis), push-pull output eliminating external pull-up, ultra-low supply current scalability across VCC (1.0–5.5V), and guaranteed operation down to 1V supply - critical for single-cell AA/AAA-powered systems.

Technical Context

The MAX9064EUK+T implements a noninverting-input comparator architecture with an internal temperature-compensated 0.2V reference and push-pull output stage capable of both sourcing and sinking current. Its input voltage range extends from -0.3V to +5.5V independent of VCC, enabling robust signal detection even when input exceeds supply rail.

It uses BiCMOS process technology to achieve nanoscale power efficiency while maintaining high input impedance during power-down (VCC = 0V). On-chip filtering provides RF immunity, and internal hysteresis (±0.9mV over temperature) ensures noise-immune switching without external components.

Key Specifications

Pinout & Package

MAX9064EUK+T is housed in a RoHS-compliant 5-pin SOT23 package (outline 21-0057), footprint-compatible with standard SOT23 land pattern 90-0174. Height: 1.45mm max. Pin 1 marked by bevelled edge.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV3691IDBVR and MAX40005XK+T, the MAX9064EUK+T uniquely combines 1.0V minimum supply, 0.2V reference, and push-pull output - enabling simpler, lower-power, and smaller-footprint threshold detection in ultra-low-voltage portable electronics.

Availability

MAX9064EUK+T is available at Aetrix Electronics and suitable for portable medical devices, battery-powered instrumentation, and compact consumer electronics requiring stable component supply across long production lifecycles.

Supply support for MAX9064EUK+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

Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.

The MAX9060–MAX9064 family was designed specifically for ultra-low-power, space-constrained portable electronics - delivering nanoscale current consumption and miniature packaging without sacrificing precision or robustness.

FAQ

What is the maximum input voltage the MAX9064EUK+T can tolerate relative to its supply?

The MAX9064EUK+T accepts input voltages from -0.3V to +5.5V regardless of VCC level. This means it can safely monitor signals exceeding its supply rail - for example, detecting 5V USB presence while operating from a 1.8V microcontroller rail. Absolute maximum rating for IN+ to GND is -0.3V to +6V, but functional operation is guaranteed only within the -0.3V to +5.5V range specified in the electrical characteristics table.

Does the MAX9064EUK+T require an external pull-up resistor on its output?

No, the MAX9064EUK+T features a true push-pull output stage that actively drives both high and low states. Unlike open-drain comparators such as the MAX9062EUK+, it does not require an external pull-up resistor - simplifying design, reducing component count, and eliminating associated leakage paths. The output is compatible with 1.0V–5.5V logic families directly.

What is the typical hysteresis value of the MAX9064EUK+T, and how does it affect threshold stability?

The MAX9064EUK+T provides internal hysteresis of ±0.9mV over the full -40°C to +85°C temperature range. This small, tightly controlled hysteresis prevents output oscillation due to noise near the 0.2V switching threshold - ensuring glitch-free operation in electrically noisy portable environments without requiring external feedback components.

Can the MAX9064EUK+T operate from a single 1.2V NiMH battery throughout its discharge cycle?

Yes, the MAX9064EUK+T is fully specified to operate from 1.0V to 5.5V supply. A discharged 1.2V NiMH cell typically drops to ~1.0V, and the device maintains guaranteed performance - including 700nA max supply current and 15µs propagation delay - at this minimum VCC. This enables reliable end-of-life detection without auxiliary voltage regulation.

How does the MAX9064EUK+T behave when its supply voltage (VCC) is ramped from 0V to operating level?

During power-up, the MAX9064EUK+T exhibits a defined power-up time of 2–3ms (from 10% VCC to 90% valid output), ensuring predictable timing behavior. Its inputs remain high-impedance and non-injecting even when VCC = 0V, preventing unwanted loading or back-current into upstream sensors or signal sources during power sequencing.