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Product Detailed Parameters
- Description：MAX40004ANS12+T
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Bulk
- Type：-
- Number of Elements：-
- Output Type：-
- Voltage - Supply, Single/Dual (±)：-
- Voltage - Input Offset (Max)：-
- Current - Input Bias (Max)：-
- Current - Output (Typ)：-
- Current - Quiescent (Max)：-
- CMRR, PSRR (Typ)：-
- Propagation Delay (Max)：-
- Hysteresis：-
- Operating Temperature：-
- Package / Case：-
- Mounting Type：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
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Overview
The MAX40004ANS12+T is a single-channel analog comparator in a 4-bump WLP package. It features a noninverting input and push-pull output. The supply voltage range is 1.7V to 5.5V with a typical operating current of 500nA. Input voltage ranges from 0.1V to VCC + 0.1V. Internal reference voltage is preset at 1.222V (typical). Propagation delay is typically 9µs. Operating temperature spans -40°C to +125°C.
Feature Summary
- Ultra-tiny 4-bump wafer-level package for board space savings
- Internal factory-trimmed voltage reference eliminates external components
- Push-pull output stage provides direct drive capability without pullup resistors
- High-impedance inputs maintain functionality even when powered down
Applications
- Mobile devices
- Portable medical devices
- Notebook computers
- Electronic toys
Procurement Notes
Verify the specific suffix '12' confirms the internal 1.222V reference voltage setting. Confirm the 'ANS' designation corresponds to the 4-bump WLP package variant rather than the SOT23 option. Ensure the component meets RoHS compliance standards as indicated by the '+' suffix. Cross-reference the datasheet revision date against manufacturing lot dates for quality assurance.
Selection Notes
Select this part when a fixed threshold near 1.2V is required without external resistor networks. The push-pull output simplifies interface design compared to open-drain variants. Verify that the 9µs propagation delay meets system timing requirements, as it is slower than high-speed comparator alternatives. Ensure the 0.73mm footprint fits within the available PCB area constraints.
Part Context
This device belongs to the MAX40002–MAX40005 family of nanoPower comparators. These parts share identical pinouts and core architectures but differ in input polarity and output structure. The MAX40004 specifically combines a noninverting input with a push-pull output, distinguishing it from the open-drain MAX40002 and inverting MAX40005 variants.
Replacement Considerations
MAX40004ANS02+T: Identical package and output type, but uses a 0.2V internal reference instead of 1.222V.
FAQ
Does the MAX40004ANS12+T require an external pullup resistor?
No, the MAX40004 series features a push-pull output stage that can source and sink current directly, eliminating the need for an external pullup resistor.
What is the function of the VCC/REF pin on this device?
For the MAX40004ANS12+T, the VCC/REF pin serves as the supply voltage input. The internal 1.222V reference is generated internally and does not require an external connection to this pin.
