Analog Devices Inc./Maxim Integrated MAX9030AUT+T

Overview

The MAX9030AUT+T from Maxim Integrated is a single, rail-to-rail output comparator with shutdown control, designed for low-power, single-supply operation from +2.5V to +5.5V. It delivers 188ns propagation delay, 35μA supply current per comparator, 4mV internal hysteresis, and operates across -40°C to +125°C - ideal for battery-powered portable systems requiring precise threshold detection with minimal quiescent power.

For engineers reviewing the MAX9030AUT+T datasheet, MAX9030AUT+T pinout, MAX9030AUT+T application, or MAX9030AUT+T equivalent, this device is selected for compact, high-noise-immunity sensing in space-constrained industrial and automotive subsystems where shutdown-enabled power gating and input common-mode range extending to VDD − 1.1V are critical design requirements.

Technical Context

The MAX9030AUT+T implements a CMOS comparator core with built-in 4mV hysteresis to prevent oscillation on slow-moving or noisy inputs. Its input stage supports common-mode voltage from VSS to VDD − 1.1V, enabling direct interfacing with sensors and photodiode preamps without level-shifting.

The output stage is optimized to minimize switching current transients, eliminating supply rail glitches during transitions. Shutdown is controlled via a high-impedance SHDN pin with logic thresholds at 0.3×VDD (low) and 0.7×VDD (high), reducing supply current to 0.05μA while placing the output in high-impedance state.

Key Specifications

Pinout & Package

MAX9030AUT+T is housed in a 6-pin SOT23 package (package code U6SN+1), footprint-compatible with industry-standard 6-lead SOT-23 layouts and suitable for automated high-density PCB assembly.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV3601DBVR and LMV7215M5X, the MAX9030AUT+T uniquely combines ultra-low power, integrated hysteresis, and shutdown in a 6-pin SOT23 - making it the only option among the three that meets simultaneous requirements for battery longevity, noise robustness, and dynamic power control in portable sensing.

Availability

MAX9030AUT+T is available at Aetrix Electronics and suitable for battery-powered instrumentation, automotive body electronics, and industrial sensor interface designs requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MAX9030AUT+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 demanding industrial, automotive, and communications applications.

The MAX9030AUT+T belongs to Maxim's ultra-low-power comparator family, engineered specifically for portable and energy-harvesting systems where supply voltage headroom, quiescent current, and board space are tightly constrained.

FAQ

What is the maximum capacitive load the MAX9030AUT+T output can drive without oscillation?

The MAX9030AUT+T output is stable with up to 150pF capacitive load, as confirmed by production testing and typical operating characteristics. Driving loads beyond this value may cause sustained oscillations or increased propagation delay. For loads >150pF, add a series resistor (e.g., 50Ω) close to the output pin to isolate capacitance and maintain stability - a practice verified in Maxim's board layout guidelines for the MAX9030AUT+T.

Does the MAX9030AUT+T require external hysteresis for reliable operation with noisy sensor inputs?

No - the MAX9030AUT+T includes 4mV of built-in hysteresis, which provides sufficient noise margin for most industrial and automotive sensor interfaces. This eliminates the need for external positive-feedback resistors in standard threshold-detection applications. External hysteresis is only required when wider trip-point separation (>4mV) is needed, as detailed in the MAX9030AUT+T datasheet Figure 1 design procedure.

What is the shutdown pin logic polarity and voltage threshold for the MAX9030AUT+T?

The SHDN pin on the MAX9030AUT+T is active-high: applying ≥0.7 × VDD places the device in normal operation, while ≤0.3 × VDD activates shutdown mode. At VDD = 5V, this means ≥3.5V enables operation and ≤1.5V initiates shutdown. The pin has high input impedance (<2.5μA bias current), allowing direct connection to GPIOs or logic gates without loading concerns.

Can the MAX9030AUT+T operate from dual supplies, and what are the limits?

Yes - the MAX9030AUT+T supports dual-supply operation from ±1.25V to ±2.75V (i.e., total supply span of 2.5V to 5.5V), matching its single-supply range. The input common-mode range remains VSS to VDD − 1.1V, so with ±2.5V supplies, inputs may swing from −2.5V to +1.4V. This configuration is validated across −40°C to +125°C and appears in the Absolute Maximum Ratings table of the MAX9030AUT+T datasheet.

Is the MAX9030AUT+T RoHS-compliant and lead-free?

Yes - the "+T" suffix in MAX9030AUT+T denotes a lead(Pb)-free and RoHS-compliant package, as explicitly stated in the datasheet's ordering information and package table. The device uses matte-tin plating and meets JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1), with a solder reflow peak temperature rating of +260°C.