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Product Detailed Parameters
- Description：IC COMPARATOR 2 GEN PUR 8UMAX
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tube,Tube
- Type：General Purpose
- Number of Elements：2
- Output Type：Open-Drain
- Voltage - Supply, Single/Dual (±)：1.8V ~ 5.5V
- Voltage - Input Offset (Max)：7mV @ 5V
- Current - Input Bias (Max)：0.25µA @ 5V
- Current - Output (Typ)：73mA @ 5V
- Current - Quiescent (Max)：200µA
- CMRR, PSRR (Typ)：70dB PSRR
- Propagation Delay (Max)：600ns
- Hysteresis：2mV
- Operating Temperature：-40°C ~ 125°C
- Package / Case：8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Mounting Type：Surface Mount
- Supplier Device Package：8-uMAX/uSOP
- Grade：-
- Qualification：-
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Overview
The LMX393HAUA+T is a dual general-purpose comparator manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single supply voltage ranging from 1.8V to 5.5V and supports an automotive temperature range of -40°C to +125°C. The device features internal hysteresis for noise immunity, low supply current of 60µA per comparator at 5.0V, and an open-drain output type. It utilizes an 8-pin µMAX package.
Feature Summary
- Internal 2mV hysteresis provides noise immunity and prevents output oscillations with slow-moving input signals
- Low supply current consumption of approximately 60µA per comparator at 5.0V
- Input common-mode voltage range includes ground potential
- No phase reversal occurs for overdriven inputs
Applications
- Mobile Communications
- Automotive Applications
- Battery-Powered Electronics
Procurement Notes
Verify the specific suffix 'T' indicates tape and reel packaging when sourcing. Confirm the 'H' designation ensures the presence of internal hysteresis functionality. Ensure the ordering code matches the 8-pin µMAX package configuration required for the target PCB layout. Cross-reference part numbers carefully as lead-free status is indicated by the '+' symbol.
Selection Notes
Select this component when noise immunity is critical due to its built-in hysteresis feature. It serves as a drop-in replacement for LMV393 devices in existing designs. Consider the 8-pin µMAX package constraints for space-limited applications. Verify that the open-drain output architecture aligns with the system's pull-up requirements.
Part Context
This device belongs to the LMX331/LMX393/LMX339 series of low-voltage comparators. The 'H' variant specifically adds internal hysteresis compared to the standard version. Manufactured using advanced submicron CMOS technology, it offers improved performance over BiCMOS or bipolar versions regarding offset and response time.
Replacement Considerations
LMX393AUA+T
FAQ
What is the function of the 'H' suffix in the part number?
The 'H' suffix indicates that the device includes internal 2mV hysteresis to provide noise immunity and prevent output oscillations.
Does the LMX393HAUA+T support split power supplies?
The datasheet specifies a single-supply operating voltage range of 1.8V to 5.5V; split supply operation is not explicitly detailed in the provided documentation.
