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Product Detailed Parameters
- Description：IC COMPARATOR 1 W/VOLT REF 4WLP
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tape & Reel (TR)
- 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)：70dB PSRR (Min)
- Propagation Delay (Max)：9µs (Typ)
- Hysteresis：8mV
- Operating Temperature：-40°C ~ 125°C
- Package / Case：4-XFBGA, WLBGA
- Mounting Type：Surface Mount
- Supplier Device Package：4-WLP (0.73x0.73)
- Grade：-
- Qualification：-
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Overview
The MAX40005ANS+T is a single, ultra-low power comparator from the nanoPower family, housed in a 4-bump WLP package with a 0.73mm x 0.73mm footprint. It operates on a supply voltage range of 1.7V to 5.5V and consumes only 500nA of supply current. The device features an inverting input and a push-pull output stage. It includes an internal reference voltage preset at 0.5V, providing a switching threshold for comparison operations. The input voltage range extends from 0.1V to 5.5V, independent of the supply voltage, maintaining high impedance even when powered down. It is specified over an automotive temperature range of -40°C to +125°C.
Feature Summary
- Ultra-low 500nA operating current preserves battery life in portable applications.
- Tiny 4-bump WLP package saves significant board space.
- Internal 0.5V reference eliminates need for external components.
- Push-pull output drives loads directly without pull-up resistors.
Applications
- Mobile Devices
- Portable Medical Devices
- Notebook Computers
Procurement Notes
Verify the specific suffix 'ANS' confirms the 4-bump WLP package type and 'T' indicates tape and reel packaging. Ensure the '+T' designation aligns with lead-free/RoHS compliance requirements for your assembly process. Confirm the internal reference voltage matches the design needs, as this variant is factory-trimmed to 0.5V. Check that the inverting input polarity suits the signal conditioning logic.
Selection Notes
Select this component when board space is constrained by the tiny WLP footprint and low quiescent current is critical for battery-operated systems. The push-pull output simplifies interface design compared to open-drain variants. Choose this part if an inverting response is required relative to the internal 0.5V threshold. Consider the 1.7V minimum supply voltage for compatibility with single-cell lithium or 1.8V system rails.
Part Context
This device belongs to the MAX40002–MAX40005 and MAX40012–MAX40015 family of nanoPower comparators. These parts are designed for extreme size and power efficiency. The MAX40005 specifically offers an inverting input configuration with a push-pull output, distinguishing it from non-inverting or open-drain siblings in the same series.
Replacement Considerations
Public confirmed substitute part numbers: None listed in datasheet.
FAQ
What is the internal reference voltage for the MAX40005ANS+T?
The internal reference voltage is factory-trimmed to 0.5V.
Does the MAX40005ANS+T require an external pull-up resistor?
No, it features a push-pull output stage that can source and sink current directly.
