Overview
The LM393DG4, produced by Texas Instruments, is a dual differential comparator IC that belongs to the LM393 and LM2903 family. This component is part of the next-generation B-version comparators, which offer enhanced specifications and performance. The LM393DG4 is designed to operate from a single power supply over a wide range of voltages, making it versatile for various applications. It features two independent voltage comparators, each capable of operating within a broad common-mode input voltage range that includes ground. This device is particularly notable for its low input offset voltage, low input bias current, and fast response time, making it suitable for a variety of industrial and consumer electronics applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage | 2 | - | 36 | V |
| Total Supply Current (5V to 36V max) | 0.6 | - | 0.8 | mA |
| Temperature Range | -40 | - | 85 | °C |
| ESD (HBM) | - | - | 2000 | V |
| Input Offset Voltage (Max over temp) | -4 | ±0.37 | 4 | mV |
| Input Bias Current (typ / max) | -3.5 | -25 | 25 | nA |
| Response Time (typ) | - | 1 | - | µsec |
| Differential Input Voltage Range | -38 | - | 38 | V |
| Low Level Output Voltage | 110 | - | 400 | mV |
Key Features
- Improved specifications of B-version, including maximum rating up to 38V and ESD rating (HBM) of 2kV.
- 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: -40°C to 85°C.
- Available in various packages, including tiny 2 x 2mm WSON package.
- Output compatible with TTL, MOS, and CMOS.
- Common-mode input voltage range includes ground.
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 LM393DG4?
The maximum supply voltage for the LM393DG4 is up to 38V for B-version devices.
- What is the typical input offset voltage of the LM393DG4?
The typical input offset voltage is ±0.37 mV.
- What is the response time of the LM393DG4?
The response time is typically 1 µsec.
- What is the ESD rating (HBM) of the LM393DG4?
The ESD rating (HBM) is 2kV.
- What are the common applications of the LM393DG4?
Common applications include vacuum robots, single-phase UPS, server power supplies, cordless power tools, and more.
- What is the temperature range for the LM393DG4?
The temperature range for the LM393B is -40°C to 85°C.
- Is the LM393DG4 compatible with TTL, MOS, and CMOS outputs?
- What is the differential input voltage range for the LM393DG4?
The differential input voltage range is ±38 V.
- Can the LM393DG4 be used in safety-critical applications?
It is advisable to consult the datasheet and relevant documentation to ensure the device meets the requirements for safety-critical applications.
- What packages are available for the LM393DG4?
The device is available in various packages, including SOIC, VSSOP, PDIP, SO, TSSOP, SOT-23, and WSON.
