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Product Detailed Parameters
- Description：IC COMPARATOR 2 DIFF 8SO
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：General Purpose
- Number of Elements：2
- Output Type：Open-Collector, Rail-to-Rail
- Voltage - Supply, Single/Dual (±)：2V ~ 36V, ±1V ~ 18V
- Voltage - Input Offset (Max)：2mV @ 30V
- Current - Input Bias (Max)：0.25µA @ 5V
- Current - Output (Typ)：20mA
- Current - Quiescent (Max)：2.5mA
- CMRR, PSRR (Typ)：-
- Propagation Delay (Max)：-
- Hysteresis：-
- Operating Temperature：0°C ~ 70°C
- Package / Case：8-SOIC (0.209", 5.30mm Width)
- Mounting Type：Surface Mount
- Supplier Device Package：8-SO
- Grade：-
- Qualification：-
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Overview
The LM393APSR is a dual differential comparator manufactured by Texas Instruments, housed in an 8-SOIC surface-mount package. It features open-collector outputs compatible with CMOS and TTL logic families. The device operates on a single supply voltage ranging from 2V to 36V or dual supplies of ±1V to ±18V. Key electrical specifications include a typical response time of 1.3µs, a maximum input bias current of 0.25µA at 5V, and a maximum static current of 2.5mA. The unit supports rail-to-rail output operation and functions within a commercial temperature range of 0°C to 70°C.
Feature Summary
- Dual independent differential comparators integrated into a compact surface-mount package
- Open-collector output structure enabling compatibility with various logic families including CMOS and TTL
- Wide single or dual power supply operational range supporting diverse system voltages
- Rail-to-rail output capability for enhanced signal swing utilization
Applications
- Voltage level detection circuits
- Over-voltage protection monitoring
- Sensor signal conditioning and threshold triggering
Procurement Notes
Verify the specific suffix 'PSR' against the manufacturer's official documentation to confirm tape-and-reel packaging and exact pinout configuration. Ensure the selected component matches the required operating temperature range and output drive characteristics for the target application design.
Selection Notes
Select this component when a dual-channel comparator with low supply current and wide voltage tolerance is required. The SOIC-8 package suits automated surface-mount assembly processes. Verify that the open-collector output interface aligns with the downstream logic requirements and necessary pull-up resistor configurations.
Part Context
This part belongs to the LM393 family of analog comparators produced by Texas Instruments. The family includes variants such as LM393DR, LM393N, and LM393AP, differing primarily in packaging styles like SOIC, DIP, and TSSOP, as well as specific performance grades. The LM393 series is widely recognized for general-purpose comparison tasks in industrial and consumer electronics.
Replacement Considerations
Compatible alternatives include LM393DR, LM393M/NOPB, and LM2903DT. Verify pin compatibility and electrical parameter equivalence before substitution.
