Overview
The LM393APWRG4 is a dual differential comparator from Texas Instruments, part of the next-generation B-version of the industry-standard LM393 and LM2903 comparator family. These comparators 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 devices are drop-in replacements for the LM293, LM393, and LM2903, for both 'A' and 'V' grades, making them highly versatile and compatible with various existing designs.
Key Specifications
| Parameter | Test Conditions | Min | Max | Unit | |
|---|---|---|---|---|---|
| Input Offset Voltage (VIO) | VS = 5 to 36V, TA = 25°C | -2.5 | ±0.37 | 2.5 | mV |
| Input Bias Current (IB) | TA = 25°C | -3.5 | -25 | -50 | nA |
| Supply Current (ICC) | VCC = 5V, TA = 25°C | 0.60 | 1 | 2.5 | mA |
| Common Mode Range (VCM) | VS = 3 to 36V | (V-) to (V+) - 1.5 | V | ||
| Differential Input Voltage Range | VS = 3 to 36V | ±38 V | V | ||
| Response Time | RL connected to 5V through 5.1kΩ, CL = 15pF | 1.3 | µs | ||
| ESD Rating (HBM) | 2kV | ||||
| Operating Temperature Range | 0 to 70°C | °C |
Key Features
- Improved specifications of B-version, including lower offset voltage and higher supply voltage capability up to 38V.
- Low input offset voltage: 0.37mV.
- Low input bias current: 3.5nA.
- Low supply current: 200µA per comparator.
- Faster response time of 1µsec.
- 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, for 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.
Applications
- Vacuum robot.
- Single phase UPS.
- Server PSU.
- Cordless power tool.
- Wireless infrastructure.
- Appliances.
- Building automation.
- Factory automation & control.
- Motor drives.
- Infotainment & cluster.
- Chemical or Gas Sensor.
- Desktop PC.
- Motor Control: AC Induction.
- Weigh Scale.
Q & A
- What is the maximum supply voltage for the LM393B?
The maximum supply voltage for the LM393B is up to 38V.
- What is the typical input offset voltage of the LM393B?
The typical input offset voltage of the LM393B is 0.37mV.
- What is the input bias current of the LM393B?
The input bias current of the LM393B is typically 3.5nA.
- What is the response time of the LM393B?
The response time of the LM393B is typically 1.3µs.
- What is the ESD rating of the LM393B?
The ESD rating of the LM393B is 2kV (HBM).
- What is the operating temperature range for the LM393B?
The operating temperature range for the LM393B is 0 to 70°C.
- Is the LM393B compatible with TTL, MOS, and CMOS outputs?
- Can the LM393B be used as a drop-in replacement for other comparators?
- What is the common-mode input voltage range for the LM393B?
The common-mode input voltage range for the LM393B includes ground and extends up to VCC - 1.5V.
- What is the differential input voltage range for the LM393B?
The differential input voltage range for the LM393B is equal to the maximum-rated supply voltage: ±38 V.
