Overview
The LM393ADR, produced by Texas Instruments, is a dual differential comparator that represents the next generation of the industry-standard LM393 and LM2903 comparator family. These devices are designed to operate from a single power supply over a wide range of voltages and are known for their improved specifications and robust performance. The LM393ADR is part of the B-version series, which offers enhanced features such as lower offset voltage, higher supply voltage capability, and improved ESD performance.
Key Specifications
| Parameter | Typical Value | Unit |
|---|---|---|
| VCC Supply Voltage (B Versions) | 0 to 38 | V |
| VID Differential Input Voltage (B Versions) | -38 to 38 | V |
| VI Input Voltage (either input) | -0.3 to 38 | V |
| IIK Input Current | -50 | mA |
| VO Output Voltage | -0.3 to 38 | V |
| IO Output Current | 25 | mA |
| TJ Operating Virtual-Junction Temperature | 150 | °C |
| Tstg Storage Temperature | -65 to 150 | °C |
| Response Time (RL connected to 5 V through 5.1 kΩ, CL = 15 pF) | 1.3 | µs |
| Input Offset Voltage | 0.37 | mV |
| Input Bias Current | 3.5 | nA |
| Supply Current per Comparator | 200 | µA |
Key Features
- Improved specifications of B-version, including maximum rating up to 38 V and ESD rating (HBM) of 2k V.
- 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, 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.
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 LM393ADR? The maximum supply voltage for the LM393ADR is up to 38 V.
- What is the ESD rating for the LM393ADR? The ESD rating for the LM393ADR is 2k V (HBM).
- What is the typical input offset voltage for the LM393ADR? The typical input offset voltage is 0.37 mV.
- What is the typical input bias current for the LM393ADR? The typical input bias current is 3.5 nA.
- What is the response time of the LM393ADR? The response time is approximately 1.3 µs.
- Is the LM393ADR compatible with TTL, MOS, and CMOS outputs? Yes, the LM393ADR is compatible with TTL, MOS, and CMOS outputs.
- What are the common applications of the LM393ADR? Common applications include vacuum robots, single-phase UPS, server power supplies, cordless power tools, and more.
- Can the LM393ADR be used as a drop-in replacement for other comparator models? Yes, the LM393ADR can be used as a drop-in replacement for LM293, LM393, and LM2903, A and V versions.
- What is the operating temperature range for the LM393ADR? The operating temperature range is from 0 to 70°C.
- What package options are available for the LM393ADR? The LM393ADR is available in SOIC-8 and other packages, including a tiny 2 x 2mm WSON package.
