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Product Detailed Parameters
- Description：IC COMPARATOR 1 W/VOLT REF SOT23
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Strip
- Type：with Voltage Reference
- Number of Elements：1
- Output Type：Push-Pull
- Voltage - Supply, Single/Dual (±)：1.7V ~ 5.5V
- Voltage - Input Offset (Max)：10mV @ 3.3V
- Current - Input Bias (Max)：0.03µA
- Current - Output (Typ)：-
- Current - Quiescent (Max)：1.1µA
- CMRR, PSRR (Typ)：46dB PSRR (Min)
- Propagation Delay (Max)：9µs (Typ)
- Hysteresis：8mV
- Operating Temperature：-40°C ~ 125°C
- Package / Case：SC-74A, SOT-753
- Mounting Type：Surface Mount
- Supplier Device Package：SOT-23-5
- Grade：-
- Qualification：-
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Overview
The MAX40005AUK+ is a single, ultra-low power comparator from the nanoPower family, housed in a 5-pin SOT23 package. It operates on a supply voltage range of 1.7V to 5.5V with a typical supply current of 500nA. The device features an inverting input and a push-pull output stage. It includes an internal factory-trimmed reference voltage preset at 0.5V, eliminating the need for external reference components. The input voltage range extends from 0.1V to 5.5V, independent of the supply rail, and maintains high impedance even when powered down. It is specified for operation over an automotive temperature range of -40°C to +125°C.
Feature Summary
- Ultra-low 500nA operating current preserves battery life in portable applications
- Internal 0.5V reference voltage saves board space and component cost
- Push-pull output stage eliminates requirement for external pull-up resistors
- High RF immunity provided by internal filtering mechanisms
Applications
- Mobile devices
- Portable medical devices
- Notebook computers
- Electronic toys
Procurement Notes
Verify the suffix 'AUK' confirms the 5-pin SOT23 package variant rather than the WLP option. Confirm the trailing '+T' indicates tape-and-reel packaging if required for automated assembly. Ensure the part number matches the specific inverting input configuration with push-pull output. Check that the internal reference voltage corresponds to the 0.5V setting designated by the model code. Validate RoHS compliance status associated with the '+' designation.
Selection Notes
Select this component when board space is constrained and low quiescent current is critical. The push-pull output simplifies interface design by removing the need for external pull-up resistors. Choose this inverting variant when the output must go low as the input exceeds the 0.5V threshold. Consider the SOT23 package for standard surface-mount assembly processes compared to the wafer-level package.
Part Context
This device belongs to the MAX40002–MAX40005 and MAX40012–MAX40015 family of nanoPower comparators. These parts are designed for extreme miniaturization and low-power consumption in battery-operated electronics. The family offers various combinations of input polarity, output type, and internal reference voltages to suit different system requirements while maintaining a consistent small footprint.
Replacement Considerations
Public confirmed substitute part numbers: None.
