Overview
The LM2903AVQDRG4 is a dual differential comparator produced by Texas Instruments. This device is part of the LM2903 series, known for its versatility and wide range of applications. It consists of two independent voltage comparators designed to operate from a single power supply over a wide range of voltages, from 2 V to 36 V. The LM2903AVQDRG4 is characterized for operation from -40°C to 125°C, making it suitable for various environmental conditions.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VCC) | 2 | - | 36 | V |
| Differential Input Voltage (VID) | -36 | - | 36 | V |
| Input Offset Voltage (VIO) | -2.5 | ±0.37 | 2.5 | mV |
| Input Bias Current (IB) | -25 | -3.5 | -50 | nA |
| Common-Mode Input Voltage Range (VICR) | 0 | - | VCC - 1.5 | V |
| Low-Level Output Voltage (VOL) | 110 | - | 400 | mV |
| Supply Current (ICC) | 0.45 | - | 1 | mA |
| Operating Temperature Range | -40 | - | 125 | °C |
| Package Type | - | - | SOIC (8-pin) | - |
Key Features
- Low input offset voltage: ±0.37 mV typical
- Low input bias current: -3.5 nA typical
- Low supply current: 0.45 mA to 1 mA
- Common-mode input voltage range includes ground
- Differential input voltage range equal to maximum-rated supply voltage: ±36 V
- Low output saturation voltage
- Output compatible with TTL, MOS, and CMOS
- Open-drain output allows for wired-AND relationships
Applications
- Chemical or gas sensors
- Desktop PCs
- Motor control: AC induction
- Weigh scales
- Vacuum robots and other industrial automation
Q & A
- What is the operating temperature range of the LM2903AVQDRG4?
The operating temperature range is from -40°C to 125°C. - What is the typical input offset voltage of the LM2903AVQDRG4?
The typical input offset voltage is ±0.37 mV. - What is the supply voltage range for the LM2903AVQDRG4?
The supply voltage range is from 2 V to 36 V. - Is the output of the LM2903AVQDRG4 compatible with TTL, MOS, and CMOS?
Yes, the output is compatible with TTL, MOS, and CMOS. - What is the typical supply current of the LM2903AVQDRG4?
The typical supply current is 0.45 mA to 1 mA. - Can the LM2903AVQDRG4 operate from a single power supply?
Yes, it can operate from a single power supply over a wide range of voltages. - What is the differential input voltage range of the LM2903AVQDRG4?
The differential input voltage range is equal to the maximum-rated supply voltage, ±36 V. - What package types are available for the LM2903AVQDRG4?
The LM2903AVQDRG4 is available in an 8-pin SOIC package. - Is the LM2903AVQDRG4 suitable for use in harsh environmental conditions?
Yes, it is characterized for operation from -40°C to 125°C, making it suitable for various environmental conditions. - Can the outputs of the LM2903AVQDRG4 be connected to other open-collector outputs?
Yes, the outputs can be connected to other open-collector outputs to achieve wired-AND relationships.
