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Product Detailed Parameters
- Description：IC COMPARATOR 2 GEN PUR SOT23-8
- Series：Beyond-the-Rails™
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tape & Reel (TR)
- Type：General Purpose
- Number of Elements：2
- Output Type：CMOS, Push-Pull, Rail-to-Rail
- 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)：2µA
- CMRR, PSRR (Typ)：80dB PSRR
- Propagation Delay (Max)：28µs
- 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 MAX9019EKA-T is a dual precision nanoPower comparator in an 8-pin SOT23 package. It operates on a supply voltage range of 1.8V to 5.5V with a typical supply current of 0.85µA at 1.8V and 1.1µA at 5.0V. The device features a CMOS push-pull output stage capable of sourcing and sinking up to 6mA, providing rail-to-rail output swing. Input common-mode voltage extends 200mV beyond the rails. An internal 4mV hysteresis ensures clean switching without external components.
Feature Summary
- Ultra-low power consumption suitable for battery-operated systems
- Beyond-the-Rails input capability extending 200mV past supply rails
- Internal 4mV hysteresis prevents oscillation from noise
- Push-pull output stage eliminates need for pull-up resistors
Applications
- Two-cell battery monitoring and management
- Threshold detectors and discriminators
- Window detectors
- Sensing at ground or supply line
- Telemetry and remote systems
Procurement Notes
Verify the specific suffix 'T' indicates tape-and-reel packaging when ordering. Confirm that the EKA designation corresponds to the standard 8-pin SOT23 package. Ensure the component meets AEC-Q100 Grade 3 qualification if automotive reliability is required for the target application environment.
Selection Notes
Select this part for applications requiring minimal quiescent current and high precision. The push-pull output distinguishes it from open-drain variants like the MAX9020. Verify that the 4mV internal hysteresis meets system requirements before choosing between adding external feedback networks.
Part Context
This component belongs to the MAX9015–MAX9020 family of nanoPower comparators manufactured by Analog Devices / Maxim Integrated. These devices are designed for space-constrained environments using the compact SOT23 package. The family includes single and dual versions with varying output stages and reference options.
Replacement Considerations
The MAX9020 serves as a functional substitute but utilizes an open-drain output instead of the push-pull configuration found in the MAX9019.
