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MAX990EKA+T is listed in the Comparators range at ChipApex. The manufacturer field lists Analog Devices Inc./Maxim Integrated. Its product description is IC COMPARATOR 2 GEN PUR SOT23-8. Review the specifications below when checking this part for your BOM.
Comparators specifications for MAX990EKA+T
- Description：IC COMPARATOR 2 GEN PUR SOT23-8
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：General Purpose
- Number of Elements：2
- Output Type：CMOS, Open-Drain, Rail-to-Rail, TTL
- Voltage - Supply, Single/Dual (±)：2.5V ~ 5.5V, ±1.25V ~ 2.75V
- Voltage - Input Offset (Max)：5mV @ 5.5V
- Current - Input Bias (Max)：1pA @ 5.5V
- Current - Output (Typ)：-
- Current - Quiescent (Max)：24µA
- CMRR, PSRR (Typ)：80dB CMRR, 80dB PSRR
- Propagation Delay (Max)：450ns
- Hysteresis：±3mV
- Operating Temperature：-40°C ~ 85°C
- Package / Case：SOT-23-8
- Mounting Type：Surface Mount
- Supplier Device Package：SOT-23-8
- Grade：-
- Qualification：-
Comparators datasheet and documents for MAX990EKA+T
Comparators Overview
The MAX990EKA+T is a dual micropower comparator featuring low-voltage operation and rail-to-rail inputs and outputs. It operates on single supplies from 2.5V to 5.5V or dual supplies of ±1.25V to ±2.75V. The device consumes 11µA per channel with a typical propagation delay of 300ns. It includes internal hysteresis, an open-drain output stage capable of pulling beyond VCC to 6V, and no phase reversal for overdriven inputs.
Comparators Feature Summary
- Dual-channel architecture with open-drain outputs extending beyond VCC
- Micropower consumption with 11µA quiescent current per channel
- Rail-to-rail input and output voltage ranges
- Internal hysteresis ensures clean switching for slow-moving signals
Comparators Applications
- Zero-Crossing Detectors
- Window Comparators
- Level Translators
- Threshold Detectors/Discriminators
- Ground/Supply-Sensing
Comparators Procurement Notes
Verify the specific suffix 'EKA' corresponds to the 8-pin SOT-23 package and the '+T' indicates tape-and-reel delivery. Confirm RoHS compliance status as indicated by the '+' designation. Ensure the operating temperature range matches the -40°C to +85°C specification required for the application environment.
Comparators Selection Notes
Select this component when a dual-channel comparator with open-drain outputs is required for level shifting or bipolar-to-single-ended conversion. It is suitable for space-constrained designs using SOT-23 packages. Consider alternatives if push-pull outputs are needed instead of open-drain configurations.
Comparators Part Context
This part belongs to the MAX985/MAX986/MAX989/MAX990/MAX993/MAX994 family of micropower comparators. While sharing similar electrical characteristics like low supply current and rail-to-rail I/O, it is distinguished by its dual-channel configuration and open-drain output stage, unlike the push-pull variants in the same series.
Comparators Replacement Considerations
MAX989EKA+T (Push-Pull Output)
Comparators FAQ
What is the maximum voltage the open-drain output can be pulled to?
The open-drain output can be pulled beyond VCC to a maximum of 6V above VEE.
Does the MAX990EKA+T have internal hysteresis?
Yes, the device features internal hysteresis to ensure clean output switching even with slow-moving input signals.
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