Overview
The LM2903AVQDR, produced by Texas Instruments, is a dual voltage comparator that belongs to the next generation of the industry-standard LM2903 comparator family. This device is designed to operate from a single power supply over a wide range of voltages, as well as from dual supplies. It features improved specifications, including lower offset voltage, higher supply voltage capability, lower supply current, and enhanced ESD performance. The LM2903AVQDR is suitable for various applications, including automotive, industrial, and consumer electronics, due to its robust and efficient design.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage | 2 | - | 36 | V |
| Total Supply Current (5V to 36V max) | 0.4 | 0.6-0.8 | 1-2.5 | mA |
| Temperature Range | -40 | - | 125 | °C |
| ESD (HBM) | - | - | 2000 | V |
| Input Offset Voltage | -4 | ±0.37 | 4 | mV |
| Input Bias Current | -25 | 3.5 | 250 | nA |
| Response Time | - | 1 | - | µsec |
| Differential Input Voltage Range | -36 | - | 36 | V |
| Low Level Output Voltage | - | 250 | - | mV (at Isink = 4 mA) |
Key Features
- Wide single supply voltage range or dual supplies (+2 V to +36 V or ±1 V to ±18 V).
- Very low supply current (0.4 mA to 0.8 mA) independent of supply voltage.
- Low input bias current: 3.5 nA typical.
- Low input offset voltage: ±0.37 mV typical.
- Input common-mode voltage range includes ground.
- Differential input voltage range equal to the maximum-rated supply voltage: ±38 V.
- Low output saturation voltage: 250 mV typical (at Isink = 4 mA).
- Outputs compatible with TTL, MOS, and CMOS.
- Improved 2 kV ESD performance and input ruggedness through dedicated ESD clamps.
- Available in various packages including SOIC, VSSOP, PDIP, SO, TSSOP, WSON, and SOT-23.
Applications
- Automotive: HEV/EV and power train, infotainment and cluster, body control module.
- Industrial: Various industrial control and monitoring systems.
- Consumer Electronics: Appliances and other consumer devices requiring low-power and high-precision voltage comparison.
- Robotics: Vacuum robots and other robotic applications requiring precise voltage comparison.
Q & A
- What is the supply voltage range for the LM2903AVQDR?
The supply voltage range for the LM2903AVQDR is from 2 V to 36 V for single supply or ±1 V to ±18 V for dual supplies. - What is the typical supply current for the LM2903AVQDR?
The typical supply current is 0.4 mA to 0.8 mA, independent of the supply voltage. - What is the input offset voltage of the LM2903AVQDR?
The input offset voltage is ±0.37 mV typical. - What is the response time of the LM2903AVQDR?
The response time is 1 µsec typical. - Is the LM2903AVQDR compatible with TTL, MOS, and CMOS outputs?
Yes, the outputs are compatible with TTL, MOS, and CMOS. - What is the ESD rating of the LM2903AVQDR?
The ESD rating is 2 kV (HBM). - In what packages is the LM2903AVQDR available?
The LM2903AVQDR is available in SOIC, VSSOP, PDIP, SO, TSSOP, WSON, and SOT-23 packages. - What are some common applications of the LM2903AVQDR?
Common applications include automotive, industrial, and consumer electronics. - Is the LM2903AVQDR qualified for automotive use?
Yes, the LM2903AVQDR is AEC-Q100 qualified for automotive applications. - What is the temperature range for the LM2903AVQDR?
The temperature range is -40°C to +125°C.
