Overview
The LM2903BIPWR, produced by Texas Instruments, is a low-power dual voltage comparator. It is part of the next-generation B-version of the industry-standard LM2903 comparator family. This device is designed to operate from a single power supply over a wide range of voltages, making it versatile for various applications. The LM2903BIPWR features improved specifications, including lower offset voltage, higher supply voltage capability, lower supply current, and enhanced ESD performance.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage | 2 to 36 | V |
| Total Supply Current | 0.6 to 0.8 | mA |
| Temperature Range | -40 to 125 | °C |
| ESD (HBM) | 2000 | V |
| Input Offset Voltage (Max over temp) | ±4 | mV |
| Input Bias Current (typ / max) | 3.5 / 25 | nA |
| Response Time (typ) | 1 | µsec |
| Differential Input Voltage Range | -38 to 38 | V |
| Output Saturation Voltage | 250 mV (Iout = 4 mA) | mV |
Key Features
- Improved specifications of B-version, including lower offset voltage and higher supply voltage capability up to 38 V.
- Low input bias current of 3.5 nA and low input offset voltage of ±0.37 mV.
- Low supply current of 0.6 to 0.8 mA, essentially independent of the supply voltage.
- Faster response time of 1 µsec.
- Enhanced ESD performance with a rating of 2 kV (HBM).
- Output compatible with TTL, DTL, ECL, MOS, and CMOS.
- Available in various packages, including SOIC, VSSOP, PDIP, SO, TSSOP, and WSON.
Applications
- Level shifters
- Sampling circuits
- Peak and zero crossing detectors
- Threshold detectors
- Automotive systems
- Vacuum robots
- Single phase UPS
- Server PSU
- Cordless power tools
- Wireless infrastructure
- Building automation
- Factory automation and control
- Motor drives
- Infotainment and cluster systems
Q & A
- What is the maximum supply voltage for the LM2903BIPWR?
The maximum supply voltage for the LM2903BIPWR is 36 V for standard operation and up to 38 V for B-version devices.
- What is the typical supply current of the LM2903BIPWR?
The typical supply current is 0.6 to 0.8 mA, which is essentially independent of the supply voltage.
- What is the input offset voltage of the LM2903BIPWR?
The input offset voltage is ±0.37 mV for the B-version devices.
- What is the response time of the LM2903BIPWR?
The response time is typically 1 µsec.
- What is the ESD rating of the LM2903BIPWR?
The ESD rating is 2000 V (HBM).
- What are the compatible output types for the LM2903BIPWR?
The outputs are compatible with TTL, DTL, ECL, MOS, and CMOS.
- In what temperature range can the LM2903BIPWR operate?
The operating temperature range is -40°C to 125°C for the B-version devices.
- What are some common applications of the LM2903BIPWR?
Common applications include level shifters, sampling circuits, peak and zero crossing detectors, threshold detectors, and various automotive and industrial systems.
- What packages are available for the LM2903BIPWR?
The device is available in several packages, including SOIC, VSSOP, PDIP, SO, TSSOP, and WSON.
- Can the LM2903BIPWR be used as a drop-in replacement for other comparators?
Yes, the LM2903BIPWR can be used as a drop-in replacement for LM293, LM393, and LM2903, for both 'A' and 'V' grades.
