Overview
The LM393PWR, produced by Texas Instruments, is a next-generation dual independent precision voltage comparator. It is part of the LM393B and LM2903B family, which offers improved specifications over earlier versions. These comparators are designed to operate from a single power supply over a wide range of voltages and are known for their low offset voltage, high supply voltage capability, and low supply current. The LM393PWR is particularly useful in applications requiring high precision and reliability, such as consumer, automotive, and industrial electronics.
Key Specifications
| Specification | Value |
|---|---|
| Package | 8-TSSOP (0.173", 4.40mm Width) |
| Operating Temperature Range | 0°C to 70°C |
| Supply Voltage Range | 2.0 Vdc to 36 Vdc (Single Supply), ±1.0 Vdc to ±18 Vdc (Split Supply) |
| Input Offset Voltage | 0.37 mV (typical), 5.0 mV (max) |
| Input Bias Current | 3.5 nA (typical), 25 nA (max) |
| Supply Current | 200 µA per comparator |
| Propagation Delay | 1 µsec |
| ESD Rating (HBM) | 2 kV |
| Output Compatibility | TTL, MOS, CMOS |
| Differential Input Voltage Range | Equal to maximum-rated supply voltage: ±38 V |
Key Features
- Improved specifications of B-version, including lower offset voltage and higher supply voltage capability
- Low input offset voltage: 0.37 mV (typical)
- Low input bias current: 3.5 nA (typical)
- Low supply current: 200 µA per comparator
- Faster response time: 1 µsec
- Extended temperature range for LM393B
- Available in tiny 2 x 2mm WSON package
- B-version is drop-in replacement for LM293, LM393, and LM2903 (A and V versions)
- Common-mode input voltage range includes ground
- Output compatible with TTL, MOS, and CMOS logic levels
- ESD clamps on the inputs increase the ruggedness of the device without affecting performance
- Pb-free, halogen-free/BFR-free, and RoHS compliant
Applications
The LM393PWR is suitable for a wide range of applications, including:
- Consumer electronics: For precision voltage comparison in various consumer devices.
- Automotive electronics: Meets AEC-Q100 qualification and PPAP capabilities, making it suitable for automotive applications.
- Industrial electronics: Used in industrial control systems, sensors, and other precision voltage comparison tasks.
Q & A
- What is the operating temperature range of the LM393PWR?
The operating temperature range of the LM393PWR is 0°C to 70°C.
- What is the supply voltage range for the LM393PWR?
The supply voltage range for the LM393PWR is 2.0 Vdc to 36 Vdc (single supply) and ±1.0 Vdc to ±18 Vdc (split supply).
- What is the typical input offset voltage of the LM393PWR?
The typical input offset voltage of the LM393PWR is 0.37 mV.
- How much current does the LM393PWR draw from the supply?
The LM393PWR draws 200 µA per comparator from the supply.
- What is the propagation delay of the LM393PWR?
The propagation delay of the LM393PWR is 1 µsec.
- Is the LM393PWR ESD protected?
- What logic levels is the output of the LM393PWR compatible with?
The output of the LM393PWR is compatible with TTL, MOS, and CMOS logic levels).
- Can the LM393PWR be used as a drop-in replacement for other comparators?
- Is the LM393PWR RoHS compliant?
- What are some common applications of the LM393PWR?
The LM393PWR is commonly used in consumer electronics, automotive electronics, and industrial electronics).
