Overview
The LM393DGKRG4 is a dual comparator integrated circuit produced by Texas Instruments. It is part of the LM393B family, which 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 feature improved specifications such as lower offset voltage, higher supply voltage capability, lower supply current, and enhanced ESD performance.
The LM393B and LM2903B devices are drop-in replacements for the LM293, LM393, and LM2903, including both 'A' and 'V' grades. They are available in various packages, including the compact 8-TSSOP (DGK) package, making them suitable for a variety of applications where space is a concern.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage | 2 | 36 | V | |
| Total Supply Current (5V to 36V) | 0.6 | 0.8 | 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 | 3.5 | 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 lower offset voltage and higher supply voltage capability up to 38V.
- 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: -40°C to 85°C for LM393B.
- Available in compact packages such as 2 x 2mm WSON and 8-TSSOP (DGK).
- 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.
- Enhanced ESD performance: 2 kV HBM.
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 LM393B?
The maximum supply voltage for the LM393B is up to 38V.
- What is the typical input offset voltage for the LM393B?
The typical input offset voltage for the LM393B is ±0.37 mV.
- What is the response time of the LM393B?
The response time of the LM393B is typically 1 µsec.
- What are the available package options for the LM393B?
The LM393B is available in various packages including SOIC, VSSOP, PDIP, SO, TSSOP, SOT-23, and WSON.
- What is the ESD rating for the LM393B?
The ESD rating for the LM393B is 2 kV HBM.
- Can the LM393B be used as a drop-in replacement for other comparators?
Yes, the LM393B can be used as a drop-in replacement for LM293, LM393, and LM2903, including both 'A' and 'V' grades.
- 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 - 2V.
- 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.
- Is the output of the LM393B compatible with other logic families?
Yes, the output of the LM393B is compatible with TTL, MOS, and CMOS logic families.
- What are some typical applications of the LM393B?
The LM393B is used in various applications such as vacuum robots, single-phase UPS, server power supplies, cordless power tools, and more.
