Overview
The LM393DR, produced by Texas Instruments, is a dual differential comparator that belongs to the next-generation B-version of the industry-standard LM393 comparator family. This device is designed to operate from a single power supply over a wide range of voltages and features improved specifications compared to its predecessors. The LM393DR is known for its low input offset voltage, low supply current, and fast response time, making it a versatile component for various applications.
Key Specifications
| Parameter | Typical Value | Unit | Conditions |
|---|---|---|---|
| Supply Voltage (VCC) | -0.3 to 38 | V | B Versions Only |
| Differential Input Voltage (VID) | -38 to 38 | V | B Versions Only |
| Input Offset Voltage (VIO) | 0.37 | mV | VCC = 5 V, TA = 25°C |
| Input Bias Current (IIB) | 3.5 | nA | VCC = 5 V, TA = 25°C |
| Supply Current per Comparator | 200 | µA | VCC = 5 V, TA = 25°C |
| Response Time | 1.3 | µs | RL connected to 5 V through 5.1 kΩ, CL = 15 pF |
| Operating Temperature Range | 0 to 70 | °C | Commercial Grade |
| Storage Temperature Range | -65 to 150 | °C | |
| Maximum Junction Temperature | 150 | °C |
Key Features
- Improved specifications of B-version, including lower offset voltage and higher supply voltage capability up to 38 V
- Low input offset voltage: 0.37 mV
- Low input bias current: 3.5 nA
- Low supply current: 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, A and V versions
- 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
- Improved 2 kV ESD performance and input ruggedness through dedicated ESD clamps
Applications
- Vacuum robots
- Single-phase UPS
- Server power supplies
- Cordless power tools
- Wireless infrastructure
- Appliances
- Building automation
- Factory automation and control
- Motor drives
- Infotainment and cluster systems
Q & A
- What is the maximum supply voltage for the LM393DR?
The maximum supply voltage for the LM393DR is up to 38 V.
- What is the typical input offset voltage of the LM393DR?
The typical input offset voltage of the LM393DR is 0.37 mV.
- What is the response time of the LM393DR?
The response time of the LM393DR is approximately 1.3 µs.
- What is the operating temperature range for the LM393DR?
The operating temperature range for the LM393DR is 0 to 70°C.
- Is the LM393DR compatible with TTL, MOS, and CMOS outputs?
- What is the storage temperature range for the LM393DR?
The storage temperature range for the LM393DR is -65 to 150°C.
- Can the LM393DR be used as a drop-in replacement for other comparator models?
- What is the maximum junction temperature for the LM393DR?
The maximum junction temperature for the LM393DR is 150°C.
- What is the differential input voltage range for the LM393DR?
The differential input voltage range for the LM393DR is ±38 V.
- Does the LM393DR have improved ESD performance?
