Analog Devices Inc./Maxim Integrated MAX9030AXT+T

Overview

The MAX9030AXT+T from Maxim Integrated is a single, rail-to-rail output comparator with shutdown control, optimized for low-power, single-supply operation from +2.5V to +5.5V. It delivers 188ns propagation delay, 4mV internal hysteresis, 35μA supply current per comparator, and operates across -40°C to +125°C - ideal for battery-powered sensor threshold detection in portable instrumentation.

For engineers reviewing the MAX9030AXT+T datasheet, MAX9030AXT+T pinout, MAX9030AXT+T application, or MAX9030AXT+T equivalent, key selection criteria include shutdown current (0.05μA), input common-mode range (VSS to VDD – 1.1V), rail-to-rail output swing, hysteresis immunity, and SC70-6 package compatibility for space-constrained PCB layouts.

Technical Context

The MAX9030AXT+T implements a CMOS comparator core with built-in 4mV hysteresis to prevent oscillation on slow-moving inputs, and features an active-low shutdown input (SHDN) that places the output in high-impedance state while reducing supply current to ≤1μA. Its input stage supports common-mode voltages up to VDD – 1.1V, enabling direct interfacing with sensors operating near the positive rail.

Output switching is designed to minimize supply-current transients, eliminating power-supply glitches during transitions. The comparator exhibits no phase reversal under overdriven input conditions and maintains stable operation with capacitive loads up to 150pF, supporting robust interfacing with microcontroller GPIOs or logic buffers.

Key Specifications

Pinout & Package

The MAX9030AXT+T is housed in a 6-pin SC70 package (package code X6SN+1), measuring 2.0mm × 1.25mm × 0.9mm, with wettable flanks and RoHS-compliant lead finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV3691IDCKR and LMV331M5X/NOPB, the MAX9030AXT+T uniquely combines shutdown control, built-in hysteresis, rail-to-rail output, and 5.5V operation in a 6-pin SC70 - making it the only option among the three suitable for 5V battery-powered systems requiring deterministic low-power wake-up behavior.

Availability

MAX9030AXT+T is available at Aetrix Electronics and suitable for portable instrumentation, sensor interface modules, and automotive body electronics requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MAX9030AXT+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, automotive, and communications applications.

The MAX9030AXT+T belongs to the MAX903x family of ultra-small, low-power comparators engineered specifically for space- and energy-constrained portable and battery-operated systems.

FAQ

What is the shutdown input logic polarity for the MAX9030AXT+T?

The MAX9030AXT+T features an active-low shutdown input (SHDN). Applying a voltage ≤0.3×VDD places the device in shutdown mode, reducing supply current to ≤1μA and placing the output in high-impedance state. A voltage ≥0.7×VDD enables normal comparator operation. This logic polarity simplifies interface with open-drain microcontroller outputs or push-pull GPIOs configured as active-low controls.

Does the MAX9030AXT+T require external hysteresis resistors?

No, the MAX9030AXT+T includes 4mV of internal hysteresis, which is sufficient for most noise-immune threshold detection applications. External hysteresis resistors are optional and only needed when wider hysteresis bands (e.g., >10mV) are required for highly noisy environments. The internal hysteresis eliminates BOM overhead and layout complexity in standard sensor interface designs using the MAX9030AXT+T.

Can the MAX9030AXT+T operate from a 2.5V supply?

Yes, the MAX9030AXT+T is fully specified to operate from +2.5V to +5.5V single supply. At 2.5V, it maintains 35μA typical supply current, 188ns propagation delay (at VOD = 100mV), and rail-to-rail output swing - enabling direct integration into low-voltage systems such as coin-cell-powered wearables and energy-harvesting sensors using the MAX9030AXT+T.

What is the maximum capacitive load the MAX9030AXT+T output can drive?

The MAX9030AXT+T output is stable with capacitive loads up to 150pF, as confirmed by characterization across temperature and supply voltage. Driving loads beyond this may cause sustained oscillations or increased propagation delay. For heavier loads (e.g., long PCB traces or multiple gate inputs), a series resistor or buffer is recommended to maintain timing integrity in circuits using the MAX9030AXT+T.

Is the MAX9030AXT+T pin-compatible with other MAX903x variants?

No, the MAX9030AXT+T is not pin-compatible with MAX9031/MAX9032/MAX9034 due to its unique 6-pin SC70 configuration including the SHDN pin. The MAX9031 uses a 5-pin SC70 without shutdown, while dual/quad versions have different pin counts and functions. PCB layout must be dedicated to the MAX9030AXT+T footprint; substitution requires schematic and layout revision.