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Product Detailed Parameters
- Description：IC COMPARATOR 2 W/VOLT REF SOT23
- Series：Beyond-the-Rails™
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tape & Reel (TR)
- Type：with Voltage Reference
- Number of Elements：2
- Output Type：Open-Drain
- Voltage - Supply, Single/Dual (±)：1.8V ~ 5.5V
- Voltage - Input Offset (Max)：5mV @ 5V
- Current - Input Bias (Max)：0.001µA @ 5V
- Current - Output (Typ)：50mA
- Current - Quiescent (Max)：2.3µA
- CMRR, PSRR (Typ)：-
- Propagation Delay (Max)：31µs
- Hysteresis：4mV
- Operating Temperature：-40°C ~ 85°C
- Package / Case：SOT-23-8
- Mounting Type：Surface Mount
- Supplier Device Package：SOT-23-8
- Grade：-
- Qualification：-
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Overview
The MAX9018BEKA-T is a dual precision nanoPower comparator in an 8-pin SOT-23 package. It operates from 1.8V to 5.5V with a typical supply current of 1.4µA at 5V. The device features Beyond-the-Rails inputs extending 200mV beyond the supply rails and includes an internal 1.24V ±1.75% reference. It has an open-drain output stage, 4mV internal hysteresis, and input offset voltage under 5mV.
Feature Summary
- Features Beyond-the-Rails inputs allowing operation 200mV beyond supply rails
- Includes integrated 1.24V reference for simplified threshold detection
- Open-drain output stage suitable for mixed-voltage system designs
- Ultra-low power consumption with minimal supply-current surges during switching
Applications
- 2-cell battery monitoring and management systems
- Threshold detectors and discriminators
- Window detectors
- Sensing at ground or supply line
- Telemetry and remote systems
Procurement Notes
Verify the specific suffix 'EKA' corresponds to the required tape-and-reel packaging format. Confirm that the B-grade reference tolerance meets the design requirements. Ensure the open-drain output configuration aligns with the target logic levels. Check for AEC-Q100 Grade 3 qualification if automotive compliance is mandatory.
Selection Notes
Select this component when low supply current is critical alongside precise voltage comparison. The open-drain output requires an external pull-up resistor. Use this part instead of push-pull versions when interfacing with higher voltage logic domains than the supply rail. Verify that the 4mV internal hysteresis is sufficient for the application noise environment.
Part Context
This device belongs to the MAX9015–MAX9020 family of nanoPower comparators. These devices are designed for space-constrained applications requiring high precision and low power. The family offers various configurations including single/dual channels and with/without internal references.
Replacement Considerations
Direct replacements within the same package include other MAX9018 variants with different temperature grades or reference tolerances. Cross-reference the MAX9017 series for identical specifications but with a push-pull output stage.
