Overview
The LM2903BIDR from Texas Instruments is a dual industrial-grade standard comparator, part of the next-generation B-version of the industry-standard LM393 and LM2903 comparator family. This device is designed to offer improved specifications over its predecessors, including lower offset voltage, higher supply voltage capability, lower supply current, and enhanced ESD performance. The LM2903BIDR is suitable for a wide range of applications due to its robust and versatile design.
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 | - | 125 | °C |
| ESD (HBM) | - | - | 2000 | V |
| Input Offset Voltage (Max over temp) | -4 | - | 4 | mV |
| Input Bias Current (typ / max) | 3.5 / 25 | - | - | nA |
| Response Time (typ) | - | 1 | - | µsec |
| Differential Input Voltage Range | -38 | - | 38 | V |
| Output Saturation Voltage | - | - | 400 | mV |
Key Features
- Improved specifications of B-version, including lower offset voltage (±0.37 mV), lower input bias current (3.5 nA), and lower supply current (200 µA per comparator).
- Maximum supply voltage rating up to 38 V and differential input voltage range equal to the maximum-rated supply voltage (±38 V).
- Faster response time of 1 µsec and low output saturation voltage.
- Enhanced ESD performance with a rating of 2 kV (HBM).
- Output compatible with TTL, MOS, and CMOS.
- Available in various packages, including SOIC, VSSOP, PDIP, SO, TSSOP, SOT-23, and WSON).
Applications
- Vacuum robots and single-phase UPS systems).
- Server power supplies and cordless power tools).
- Wireless infrastructure, appliances, and building automation).
- Factory automation and control, motor drives, and infotainment systems).
Q & A
- What is the maximum supply voltage for the LM2903BIDR? The maximum supply voltage for the LM2903BIDR is up to 36 V, with a maximum differential input voltage range of ±38 V).
- What is the typical response time of the LM2903BIDR? The typical response time of the LM2903BIDR is 1 µsec).
- What is the input offset voltage of the LM2903BIDR? The input offset voltage of the LM2903BIDR is typically ±0.37 mV, with a maximum of ±4 mV over the temperature range).
- What is the ESD rating of the LM2903BIDR? The LM2903BIDR has an ESD rating of 2 kV (HBM)).
- In what packages is the LM2903BIDR available? The LM2903BIDR is available in SOIC, VSSOP, PDIP, SO, TSSOP, SOT-23, and WSON packages).
- What is the temperature range for the LM2903BIDR? The LM2903BIDR operates over a temperature range of -40°C to 125°C).
- Is the LM2903BIDR compatible with TTL, MOS, and CMOS outputs? Yes, the LM2903BIDR is compatible with TTL, MOS, and CMOS outputs).
- Can the LM2903BIDR be used as a drop-in replacement for older versions? Yes, the LM2903BIDR can be used as a drop-in replacement for LM293, LM393, and LM2903 (A and V versions)).
- What is the typical supply current of the LM2903BIDR? The typical supply current of the LM2903BIDR is 200 µA per comparator).
- What are some common applications of the LM2903BIDR? Common applications include vacuum robots, single-phase UPS systems, server power supplies, cordless power tools, and various automation systems).
