Overview
The LM393PE3, produced by Texas Instruments, is part of the next-generation LM393B and LM2903B family of dual independent precision voltage comparators. These devices are designed to operate from a single power supply over a wide range of voltages and are known for their improved specifications, including lower offset voltage, higher supply voltage capability, lower supply current, and lower input bias current. The LM393B and LM2903B are drop-in replacements for the LM293, LM393, and LM2903 in both 'A' and 'V' grades, making them highly versatile for various applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Maximum Supply Voltage | Up to 38 | V |
| ESD Rating (HBM) | 2 kV | |
| Input Offset Voltage | 0.37 mV | |
| Input Bias Current | 3.5 nA | |
| Supply Current per Comparator | 200 µA | |
| Propagation Delay Time | 1 µsec | |
| Operating Temperature Range | 0 to 70 | °C |
| Differential Input Voltage Range | ±38 V | |
| Output Compatibility | TTL, MOS, CMOS | |
| Package Type | PDIP (P) | |
| Number of Pins | 8 |
Key Features
- Improved specifications of B-version, including lower offset voltage and higher supply voltage capability.
- Low input offset voltage of 0.37 mV and low input bias current of 3.5 nA.
- Low supply current of 200 µA per comparator.
- Faster response time of 1 µsec.
- Extended temperature range for LM393B.
- Available in tiny 2 x 2mm WSON package.
- B-version is a drop-in replacement for LM293, LM393, and LM2903 in both 'A' and 'V' grades.
- Common-mode input voltage range includes ground.
- Differential input voltage range equal to maximum-rated supply voltage: ±38 V.
- Low output saturation voltage.
- Output compatible with TTL, MOS, and CMOS logic levels.
- ESD clamps on the inputs increase the ruggedness of the device without affecting performance.
Applications
- Vacuum robots
- Single phase UPS
- Server PSU
- Cordless power tools
- Wireless infrastructure
- Appliances
- Building automation
- Factory automation and control
- Motor drives
- Infotainment and cluster systems
- Chemical or gas sensors
- Desktop PCs
- Weigh scales
- Motor control: AC induction
Q & A
- What is the maximum supply voltage for the LM393PE3?
The maximum supply voltage for the LM393PE3 is up to 38 V.
- What is the input offset voltage of the LM393PE3?
The input offset voltage of the LM393PE3 is as low as 0.37 mV.
- What is the input bias current of the LM393PE3?
The input bias current of the LM393PE3 is 3.5 nA.
- What is the propagation delay time of the LM393PE3?
The propagation delay time of the LM393PE3 is 1 µsec.
- What is the operating temperature range of the LM393PE3?
The operating temperature range of the LM393PE3 is 0 to 70°C.
- Is the LM393PE3 compatible with various logic levels?
- What is the differential input voltage range of the LM393PE3?
The differential input voltage range of the LM393PE3 is equal to the maximum-rated supply voltage: ±38 V.
- Does the LM393PE3 have ESD protection?
- Can the LM393PE3 be used as a drop-in replacement for other comparator models?
- What are some common applications of the LM393PE3?
The LM393PE3 is used in various applications including vacuum robots, single phase UPS, server PSU, cordless power tools, and more.
