Overview
The LM45CIM3X-NS, manufactured by National Semiconductor, is a precision centigrade temperature sensor designed for accurate temperature measurement in a compact SOT-23 package. This component is ideal for applications requiring reliable temperature monitoring with minimal power consumption. Its market positioning targets industries such as consumer electronics, industrial automation, and automotive systems, where precise temperature control is crucial. The LM45CIM3X-NS stands out for its low output impedance, linear output, and inherent calibration, making it a cost-effective solution for temperature sensing needs.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Operating Temperature Range | -20 to 100 | °C | |
| Supply Voltage | 4 to 10 | V | |
| Supply Current | 120 | µA | Max |
| Output Impedance | 35 | Ω | |
| Accuracy | ±2 | °C | At room temperature |
| Sensor Gain | 10 | mV/°C |
Key Features
- Directly calibrated in centigrade (°C) for ease of use.
- Linear output with a 10 mV/°C scale factor.
- Low self-heating, typically less than 0.2°C in still air.
- Operates with a single power supply or dual supplies.
- Low output impedance simplifies interfacing with control circuits.
Applications
The LM45CIM3X-NS is widely used in various fields, including consumer electronics for thermal management, industrial automation for process control, and automotive systems for engine monitoring. Its precise temperature sensing capabilities make it suitable for applications such as HVAC systems, battery management, and environmental monitoring. The compact SOT-23 package ensures easy integration into space-constrained designs.
Q & A
1. What is the operating temperature range of the LM45CIM3X-NS?
The operating temperature range is -20°C to +100°C.
2. What is the supply voltage range for this component?
The supply voltage range is 4V to 10V.
3. How accurate is the LM45CIM3X-NS at room temperature?
It provides an accuracy of ±2°C at room temperature.
4. What is the typical supply current of the LM45CIM3X-NS?
The maximum supply current is 120 µA.
5. What is the output impedance of the LM45CIM3X-NS?
The output impedance is 35 Ω.
6. Can the LM45CIM3X-NS operate with a single power supply?
Yes, it can operate with a single power supply or dual supplies.
7. What is the sensor gain of the LM45CIM3X-NS?
The sensor gain is 10 mV/°C.
8. Is the LM45CIM3X-NS suitable for remote applications?
Yes, its low output impedance and linear output make it suitable for remote applications.
9. What is the self-heating effect of the LM45CIM3X-NS?
Self-heating is typically less than 0.2°C in still air.
10. What package does the LM45CIM3X-NS come in?
It is available in a compact SOT-23 package.
