Overview
The LM2903VDG is a dual independent precision voltage comparator produced by onsemi. It is part of the LM393 series, which is designed for single or split supply operation. This device is ideal for various applications in consumer, automotive, and industrial electronics due to its low input offset voltage and wide supply voltage range.
The LM2903VDG features a common mode range-to-ground level with single supply operation, making it versatile for different design requirements. Its low current drain and compatibility with various logic levels (DTL, ECL, TTL, MOS, and CMOS) enhance its usability in a broad range of electronic systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Power Supply Voltage (Single) | 2.0 to 36 | Vdc |
| Power Supply Voltage (Split) | ±1.0 to ±18 | Vdc |
| Input Offset Voltage | ±2.0 to ±7.0 | mV |
| Input Offset Current | ±5.0 to ±50 | nA |
| Input Bias Current | ±20 to ±250 | nA |
| Input Common Mode Voltage Range | 0 to VCC - 1.5 | V |
| Output Voltage Compatibility | DTL, ECL, TTL, MOS, CMOS | |
| Supply Current | 0.4 to 1.0 | mA |
| Operating Ambient Temperature Range | -40 to +125 | °C |
| Maximum Operating Junction Temperature | 150 | °C |
Key Features
- Wide Single-Supply Range: 2.0 Vdc to 36 Vdc and Split-Supply Range: ±1.0 Vdc to ±18 Vdc
- Very Low Current Drain Independent of Supply Voltage: 0.4 mA
- Low Input Bias Current: 25 nA and Low Input Offset Current: 5.0 nA
- Low Input Offset Voltage: 2.0 mV (max)
- Input Common Mode Range to Ground Level
- Differential Input Voltage Range Equal to Power Supply Voltage
- Output Voltage Compatible with DTL, ECL, TTL, MOS, and CMOS Logic Levels
- ESD Clamps on the Inputs Increase the Ruggedness of the Device without Affecting Performance
- Pb-Free, Halogen Free/BFR Free and RoHS Compliant
Applications
The LM2903VDG is suitable for a variety of applications, including:
- Consumer Electronics: Due to its low power consumption and wide supply voltage range, it is ideal for battery-powered devices.
- Automotive Electronics: Qualified for automotive use with AEC-Q100 certification and PPAP capability.
- Industrial Electronics: Used in control systems, monitoring circuits, and other industrial applications requiring precision voltage comparison.
- Zero Crossing Detectors: Can be used to detect zero crossings in AC signals.
- Free-Running Square-Wave Oscillators: Can be configured to generate square-wave signals.
- Time Delay Generators: Useful in timing and delay circuits.
- Comparators with Hysteresis: Can be designed to include hysteresis for noise immunity.
Q & A
- What is the power supply voltage range for the LM2903VDG?
The LM2903VDG can operate with a single supply voltage from 2.0 Vdc to 36 Vdc or a split supply voltage from ±1.0 Vdc to ±18 Vdc.
- What is the input offset voltage of the LM2903VDG?
The input offset voltage is as low as ±2.0 mV.
- What is the typical supply current of the LM2903VDG?
The typical supply current is 0.4 mA.
- Is the LM2903VDG compatible with various logic levels?
Yes, it is compatible with DTL, ECL, TTL, MOS, and CMOS logic levels.
- What is the operating ambient temperature range for the LM2903VDG?
The operating ambient temperature range is -40°C to +125°C.
- Is the LM2903VDG RoHS compliant?
Yes, it is Pb-Free, Halogen Free/BFR Free and RoHS Compliant.
- What are some common applications of the LM2903VDG?
It is used in consumer electronics, automotive electronics, industrial electronics, zero crossing detectors, free-running square-wave oscillators, time delay generators, and comparators with hysteresis.
- How can oscillation tendencies be alleviated in the LM2903VDG?
Oscillation tendencies can be alleviated by using input resistors less than 10 kΩ and adding positive feedback less than 10 mV.
- What is the maximum output sink current of the LM2903VDG?
The maximum output sink current is 16 mA.
- Is the LM2903VDG qualified for automotive use?
Yes, it is AEC-Q100 qualified and PPAP capable.
