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Product Detailed Parameters
- Description：IC COMPARATOR 1 GEN PUR SC70-5
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：General Purpose
- Number of Elements：1
- 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)：120µA
- CMRR, PSRR (Typ)：70dB PSRR
- Propagation Delay (Max)：600ns
- Hysteresis：2mV
- Operating Temperature：-40°C ~ 125°C
- Package / Case：5-TSSOP, SC-70-5, SOT-353
- Mounting Type：Surface Mount
- Supplier Device Package：SC-70-5
- Grade：-
- Qualification：-
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Overview
The LMX331AXK+T is a single-channel, low-voltage analog comparator manufactured by Analog Devices Inc. (Maxim Integrated). It operates within a supply voltage range of 1.8V to 5.5V and supports an automotive temperature range from -40°C to +125°C. The device features an open-drain output with a maximum sink current of 73mA at 5V operation. Key electrical parameters include a typical input offset voltage of 7mV at 5V and 5mV at 1.8V, with a propagation delay typically ranging from 90ns to 500ns depending on overdrive conditions. It consumes approximately 60µA per comparator at 5V.
Feature Summary
- Drop-in pin-for-pin compatible replacement for LMV331/LMV393/LMV339 series
- Low supply current consumption optimized for battery-powered applications
- Input common-mode voltage range includes ground potential
- No phase reversal occurs for overdriven inputs
Applications
- Mobile communications systems
- Automotive electronic applications
- Battery-powered portable electronics
- General-purpose low-voltage logic interfaces
Procurement Notes
Verify the specific ordering suffix AXK+T confirms the SC70 package and lead-free/RoHS compliance status. Confirm the -40°C to +125°C temperature grade matches system requirements. Ensure the open-drain output configuration aligns with the pull-up resistor design in the target circuit. Check for any recent lifecycle changes or obsolescence notices from the manufacturer.
Selection Notes
Select this component when a direct replacement for the LMV331 is required in space-constrained designs. The SC70 package offers significant size reduction compared to traditional SOT-23 options. Consider the open-drain output requirement for level shifting or wired-OR configurations. Evaluate the propagation delay specifications against the signal frequency requirements of the application.
Part Context
The LMX331AXK+T belongs to the LMX331/LMX393/LMX339 family of general-purpose comparators. This series utilizes advanced submicron CMOS technology to achieve superior performance over older BiCMOS or bipolar versions. The 'H' variants in this family add internal hysteresis, whereas the standard LMX331 relies on external components for noise immunity.
Replacement Considerations
LMX331 is a drop-in replacement for LMV331.
