Overview
The LM2903BIDDFR is a dual industrial-grade standard comparator produced by Texas Instruments. It is part of the next-generation B-version comparators, which offer improved specifications over their predecessors. This device is designed to operate from a single power supply over a wide range of voltages and features two independent voltage comparators. The LM2903BIDDFR is available in a SOT-23-THN (DDF) package, making it suitable for applications where space is limited.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage | 2 to 36 | V |
| Total Supply Current (5V to 36V max) | 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 | 110 to 400 | mV |
| Package Type | SOT-23-THN (DDF) |
Key Features
- Improved specifications of B-version, including lower offset voltage, higher supply voltage capability, and lower supply current.
- 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 125°C.
- High ESD rating (HBM): 2kV.
- Output compatible with TTL, MOS, and CMOS.
- Common-mode input voltage range includes ground.
- Differential input voltage range equal to maximum-rated supply voltage: ±38 V.
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 LM2903BIDDFR? The LM2903BIDDFR is a dual industrial-grade standard comparator produced by Texas Instruments.
- What is the supply voltage range for the LM2903BIDDFR? The supply voltage range is from 2 to 36 volts.
- What is the temperature range for the LM2903BIDDFR? The temperature range is from -40°C to 125°C.
- What is the ESD rating for the LM2903BIDDFR? The ESD rating is ±2000 V (HBM).
- What is the typical response time of the LM2903BIDDFR? The typical response time is 1 µsec.
- What are the common applications of the LM2903BIDDFR? Applications include vacuum robots, single-phase UPS, server power supplies, cordless power tools, and more.
- What package type is the LM2903BIDDFR available in? The LM2903BIDDFR is available in a SOT-23-THN (DDF) package.
- Is the LM2903BIDDFR compatible with TTL, MOS, and CMOS outputs? Yes, it is compatible with TTL, MOS, and CMOS outputs.
- What is the input offset voltage of the LM2903BIDDFR? The input offset voltage is ±0.37 mV.
- Can the LM2903BIDDFR replace older comparator models? Yes, it can drop-in replace the LM293, LM393, and LM2903 for both 'A' and 'V' grades.
