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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 MAX40005ANS05+T is a single, ultra-low power comparator from the nanoPower family, housed in a 4-bump WLP package. It features an inverting input and a push-pull output stage. The device operates on a supply voltage range of 1.7V to 5.5V with a typical supply current of 500nA. It includes a factory-trimmed internal reference voltage set at 0.5V. The input voltage range extends from 0.1V to 5.5V, independent of the supply rail. It maintains high input impedance even when powered down and offers RF immunity through internal filtering.
Feature Summary
- Ultra-low power consumption preserves battery life in portable applications
- Tiny 4-bump wafer-level package minimizes board space requirements
- Push-pull output stage eliminates need for external pull-up resistors
- High input impedance maintained during power-down states
Applications
- Mobile devices
- Portable medical devices
- Notebook computers
- Electronic toys
Procurement Notes
Verify the specific suffix '05' confirms the 0.5V internal reference voltage. Confirm the 'ANS' code indicates the 4-bump WLP package variant. Ensure the '+T' designation matches the required tape-and-reel packaging format for automated assembly processes.
Selection Notes
Select this part for designs requiring an inverting comparator response with a fixed 0.5V threshold. The push-pull output is suitable for direct interfacing with digital logic without external components. Consider the WLP package only if the layout supports the specific land pattern requirements for the 4-bump configuration.
Part Context
This component belongs to the MAX40002–MAX40005 series of nanoPower comparators. These devices are designed for extreme size and power constraints. The series differentiates by input polarity (inverting or non-inverting) and output type (open-drain or push-pull). This specific model combines an inverting input with a push-pull output architecture.
Replacement Considerations
Publicly confirmed substitute part numbers are not provided in the source documentation.
FAQ
What is the function of the internal reference voltage in this device?
The internal reference voltage serves as the switching threshold for the comparator. For the MAX40005ANS05+T, this threshold is factory-trimmed to 0.5V.
How does the input stage behave when the device is unpowered?
The innovative input-stage architecture maintains a high impedance at the inputs even when the supply voltage is zero, allowing for flexible power-saving schemes.
