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Product Detailed Parameters
- Description：IC COMPARATOR 2 GEN PUR SOT23-8
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tape & Reel (TR),Cut Tape (CT),Bulk
- 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：SOT-23-8
- Mounting Type：Surface Mount
- Supplier Device Package：SOT-23-8
- Grade：-
- Qualification：-
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Overview
The LMX393HAKA+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 functions within an automotive temperature range of -40°C to +125°C. The device features internal hysteresis for noise immunity, open-drain outputs, and low supply current consumption. It serves as a pin-for-pin compatible replacement for the LMV393 series.
Feature Summary
- Internal hysteresis provides noise immunity and prevents output oscillations with slow-moving input signals
- Open-drain output configuration allows flexible interfacing with various logic families
- Input common-mode voltage range includes ground potential
- No phase reversal occurs when inputs are overdriven beyond the supply rails
Applications
- Mobile communications systems
- Automotive electronic applications
- Battery-powered portable electronics
- General-purpose low-voltage signal conditioning
Procurement Notes
Verify that the ordering suffix 'AKA' corresponds to the 8-pin SOT23 package and '+T' indicates tape and reel packaging. Confirm the 'H' designation ensures the presence of internal hysteresis. Ensure compliance with RoHS standards indicated by the '+' suffix. Cross-reference the manufacturer's latest documentation for any updates to pin configurations or electrical characteristics before finalizing procurement.
Selection Notes
Select this component when noise immunity is critical due to its built-in hysteresis feature. It is suitable for designs requiring operation at low supply voltages down to 1.8V. Consider the 8-pin SOT23 package for space-constrained PCB layouts. Verify that the open-drain output architecture aligns with the system's pull-up requirements and logic level compatibility.
Part Context
This part belongs to the LMX331/LMX393/LMX339 family of low-voltage comparators. These devices are designed as drop-in replacements for the LMV331/LMV393/LMV339 series. The 'H' variant specifically adds internal hysteresis compared to the standard versions. They utilize advanced submicron CMOS technology for superior performance over traditional BiCMOS or bipolar comparators.
Replacement Considerations
LMX393AKA+T
FAQ
What distinguishes the LMX393H from the standard LMX393?
The LMX393H includes internal hysteresis to provide noise immunity, whereas the standard LMX393 does not have this feature.
Does the device exhibit phase reversal during overdrive conditions?
No, the LMX393H is designed to prevent phase reversal even when inputs are overdriven.
