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Product Detailed Parameters
- Description：LOW POWER, FAST COMPARATOR
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tape & Reel (TR)
- Type：General Purpose
- Number of Elements：1
- Output Type：Push-Pull, Rail-to-Rail
- Voltage - Supply, Single/Dual (±)：1.7V ~ 5.5V
- Voltage - Input Offset (Max)：5mV @ 3.3V
- Current - Input Bias (Max)：0.14µA @ 3.3V
- Current - Output (Typ)：-
- Current - Quiescent (Max)：17µA
- CMRR, PSRR (Typ)：70dB CMRR, 60dB PSRR
- Propagation Delay (Max)：340ns (Typ)
- Hysteresis：3mV
- Operating Temperature：-40°C ~ 125°C
- Package / Case：SOT-23-6
- Mounting Type：Surface Mount
- Supplier Device Package：SOT-6
- Grade：-
- Qualification：-
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Overview
The MAX40009AUT+T is a single-channel analog comparator in a 6-pin SOT-23 package. It operates on a supply voltage of 1.7V to 5.5V with a typical quiescent current of 12µA and a shutdown current of 1µA. The device features rail-to-rail inputs, a push-pull output stage capable of sourcing or sinking up to 8mA, and an internal hysteresis of 3mV. Propagation delay is typically 220ns at 100mV overdrive. It functions within an automotive temperature range of -40°C to +125°C.
Feature Summary
- Push-pull output stage provides robust drive capability without requiring external pull-up resistors.
- Integrated internal hysteresis ensures clean switching transitions for slow-moving input signals.
- Low-power shutdown mode significantly reduces quiescent current consumption when inactive.
- Rail-to-rail input common-mode range accommodates full signal swing across the supply voltage.
Applications
- Mobile communications systems
- Portable and battery-powered devices
- Window comparator circuits
- Threshold detectors and discriminators
Procurement Notes
Verify the specific suffix 'AUT' corresponds to the SOT-23-6 package variant rather than the WLP version. Confirm RoHS compliance status via the '+' designation in the ordering information. Ensure the supplier source matches Analog Devices specifications for the MAX40009 series to guarantee electrical parameter accuracy.
Selection Notes
Select this component when a push-pull output is required instead of the open-drain configuration found in the MAX40008. It is suitable for applications needing low power consumption alongside fast response times. Consider the SOT-23 footprint constraints versus the smaller WLP option based on board space availability.
Part Context
This part belongs to the MAX40008/MAX40009 family of micro-power comparators designed for low-voltage operation. While the MAX40008 utilizes an open-drain output, the MAX40009 variant specifically employs a push-pull architecture. Both share identical input characteristics and power profiles but differ in output drive topology.
Replacement Considerations
MAX40008ANT+T (Open-drain output)
FAQ
Does the MAX40009 require an external pull-up resistor?
No, the MAX40009 features a push-pull output stage that can actively source and sink current, eliminating the need for an external pull-up resistor.
What is the maximum output current capability?
The output stage can source or sink up to 8mA while maintaining rail-to-rail voltage swing.
