Overview
The LM393DRG3, produced by Texas Instruments, is a next-generation dual differential comparator belonging to the LM393 family. This device is part of the B-version series, which offers improved specifications over its predecessors. The LM393B and LM2903B are designed to operate from a single power supply over a wide range of voltages, making them versatile for various applications. These comparators are drop-in replacements for the LM293, LM393, and LM2903 in both 'A' and 'V' grades, ensuring compatibility and ease of integration into existing designs.
Key Specifications
| Parameter | 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) (B Versions) | -0.3 to 38 | V |
| IIK Input Current | -50 | mA |
| VO Output Voltage (B Versions) | -0.3 to 38 | V |
| IO Output Current (B Versions) | 25 | mA |
| ISC Duration of Output Short Circuit to Ground | Unlimited | |
| 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 |
| Operating Temperature Range | 0 to 70 | °C |
Key Features
- Improved specifications of B-version, including maximum rating up to 38 V and ESD rating (HBM) of 2 kV.
- 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.
- 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 (PSU).
- 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 LM393DRG3?
The maximum supply voltage for the LM393DRG3 is up to 38 V. - What is the ESD rating for the LM393DRG3?
The ESD rating for the LM393DRG3 is 2 kV (HBM). - What is the input offset voltage of the LM393DRG3?
The input offset voltage of the LM393DRG3 is 0.37 mV. - How much current does the LM393DRG3 draw from the supply per comparator?
The LM393DRG3 draws 200 µA per comparator from the supply. - What is the response time of the LM393DRG3?
The response time of the LM393DRG3 is 1.3 µs. - What are the common-mode and differential input voltage ranges for the LM393DRG3?
The common-mode input voltage range includes ground, and the differential input voltage range is equal to the maximum-rated supply voltage: ±38 V. - Is the LM393DRG3 compatible with TTL, MOS, and CMOS outputs?
Yes, the LM393DRG3 is compatible with TTL, MOS, and CMOS outputs. - What are some typical applications of the LM393DRG3?
Typical applications include vacuum robots, single-phase UPS, server power supplies, cordless power tools, wireless infrastructure, appliances, building automation, factory automation and control, motor drives, and infotainment and cluster systems. - Can the LM393DRG3 replace older versions of the LM393 and LM2903?
Yes, the LM393DRG3 can drop-in replace the LM293, LM393, and LM2903 in both 'A' and 'V' grades. - What is the operating temperature range for the LM393DRG3?
The operating temperature range for the LM393DRG3 is 0 to 70°C.
