Overview
The LM393P3, produced by Texas Instruments, is a next-generation dual comparator that belongs to the LM393 family. This device is designed to offer improved specifications over its predecessors, making it a robust choice for various electronic applications. The LM393P3 features two independent voltage comparators that can operate from a single power supply over a wide range of voltages. It is known for its low offset voltage, high supply voltage capability, low supply current, and enhanced ESD performance.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Power Supply Voltage | 2.0 to 36 | Vdc (Single Supply), ±1.0 to ±18 Vdc (Split Supply) |
| Input Offset Voltage | 0.37 mV (B-version), 5.0 mV (max) for LM293/393 | mV |
| Input Bias Current | 3.5 nA (B-version), 25 nA | nA |
| Supply Current | 200 µA per comparator | µA |
| Propagation Delay | 1 µsec | µsec |
| ESD Rating (HBM) | 2 kV | kV |
| Operating Temperature Range | 0 to 70°C | °C |
| Output Voltage Compatibility | TTL, MOS, CMOS | |
| Package Type | PDIP-8, SOIC-8, WSON |
Key Features
- Improved specifications of B-version, including lower offset voltage and higher supply voltage capability.
- Low input offset voltage: 0.37 mV for B-version.
- Low input bias current: 3.5 nA for B-version.
- Low supply current: 200 µA per comparator.
- Faster response time: 1 µsec.
- Enhanced ESD performance: 2 kV ESD rating.
- Common-mode input voltage range includes ground.
- Differential input voltage range equal to maximum-rated supply voltage: ±38 V.
- Output compatible with TTL, MOS, and CMOS logic levels.
- Available in various packages, including PDIP-8, SOIC-8, and WSON.
- B-version is a drop-in replacement for LM293, LM393, and LM2903 A and V versions.
Applications
The LM393P3 is versatile and can be used in a variety of applications, including consumer electronics, automotive systems, and industrial electronics. Its wide single-supply range and split-supply capability make it suitable for different power supply configurations. It is particularly useful in circuits that require precision voltage comparison, such as in sensor circuits, alarm systems, and power supply monitoring.
Q & A
- What is the maximum supply voltage for the LM393P3? The maximum supply voltage for the LM393P3 is 36 Vdc for single supply and ±18 Vdc for split supply.
- What is the input offset voltage of the LM393P3 B-version? The input offset voltage of the LM393P3 B-version is as low as 0.37 mV.
- How much current does the LM393P3 draw from the supply? The LM393P3 draws 200 µA of supply current per comparator.
- What is the propagation delay of the LM393P3? The propagation delay of the LM393P3 is 1 µsec.
- Is the LM393P3 ESD protected? Yes, the LM393P3 has an ESD rating of 2 kV.
- What are the compatible logic levels for the LM393P3 output? The output of the LM393P3 is compatible with TTL, MOS, and CMOS logic levels.
- Can the LM393P3 operate from a single power supply? Yes, the LM393P3 can operate from a single power supply over a wide range of voltages.
- What is the common-mode input voltage range of the LM393P3? The common-mode input voltage range of the LM393P3 includes ground.
- Is the LM393P3 a drop-in replacement for other comparator models? Yes, the LM393P3 B-version is a drop-in replacement for LM293, LM393, and LM2903 A and V versions.
- What are the typical applications of the LM393P3? The LM393P3 is used in consumer electronics, automotive systems, and industrial electronics, particularly in circuits requiring precision voltage comparison.
