Overview
The LM2903BIDGKR is a next-generation dual voltage comparator from Texas Instruments, part of the LM2903B family. This device is designed to replace earlier versions such as the LM293, LM393, and LM2903, offering improved specifications and enhanced performance. The LM2903BIDGKR features two independent voltage comparators that can operate from a single power supply over a wide range of voltages, making it versatile for various applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage | 2 | - | 36 | V |
| Total Supply Current (5V to 36V max) | 0.6 | 0.8 | 1 | mA |
| Temperature Range | -40 | - | 125 | °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 |
Key Features
- Improved specifications of B-version, including lower offset voltage, higher supply voltage capability, lower supply current, and lower input bias current.
- 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 and faster response time of 1 µsec.
- Extended temperature range for LM393B and available in a tiny 2 x 2mm WSON package.
- Common-mode input voltage range includes ground and differential input voltage range equal to the maximum-rated supply voltage.
- Low output saturation voltage and output compatible with TTL, MOS, and CMOS.
Applications
- Automotive: HEV/EV and power train, infotainment and cluster, body control module.
- Industrial: Appliances, building automation, factory automation & control, motor drives.
- Consumer Electronics: Cordless power tools, wireless infrastructure, infotainment & cluster.
- Server and Data Center: Server PSU.
- Other: Vacuum robots, single phase UPS, and various automation systems.
Q & A
- What is the maximum supply voltage for the LM2903BIDGKR?
The maximum supply voltage for the LM2903BIDGKR is up to 38V. - What is the typical input offset voltage of the LM2903BIDGKR?
The typical input offset voltage is ±0.37 mV. - What is the response time of the LM2903BIDGKR?
The response time is typically 1 µsec. - What is the ESD rating (HBM) of the LM2903BIDGKR?
The ESD rating (HBM) is 2000 V. - Can the LM2903BIDGKR operate from a single power supply?
Yes, the LM2903BIDGKR can operate from a single power supply over a wide range of voltages. - What are the compatible output types for the LM2903BIDGKR?
The outputs are compatible with TTL, MOS, and CMOS. - What is the temperature range for the LM2903BIDGKR?
The temperature range is -40°C to 125°C. - Is the LM2903BIDGKR automotive qualified?
Yes, the LM2903BIDGKR is qualified for automotive applications and meets AEC-Q100 standards. - What package options are available for the LM2903BIDGKR?
The device is available in various packages including SOIC, VSSOP, PDIP, SO, TSSOP, SOT-23, and WSON). - Can the LM2903BIDGKR replace earlier versions of comparators?
Yes, the LM2903BIDGKR can drop-in replace the LM293, LM393, and LM2903, for both 'A' and 'V' grades).
