Overview
The Texas Instruments LM35CAZ/NOPB is a precision integrated-circuit temperature sensor that provides an output voltage linearly proportional to the Centigrade temperature. This device is part of the LM35 series, known for its high accuracy and ease of use. The LM35CAZ/NOPB operates within a temperature range of -40°C to +110°C, making it suitable for a wide variety of applications. It does not require any external calibration or trimming, offering typical accuracies of ±0.2°C at room temperature and ±0.75°C over the full temperature range. The low-output impedance and precise inherent calibration of the LM35CAZ/NOPB make it easy to interface with readout or control circuitry.
Key Specifications
| Attribute | Value |
|---|---|
| Brand | Texas Instruments |
| Sensor Function | Temperature |
| Output Type | Voltage |
| Interface Type | Analogue |
| Accuracy | ±0.2 °C |
| Mounting Type | Through Hole |
| Pin Count | 3 |
| Operating Temperature Range | -40 to +110 °C |
| Minimum Operating Temperature | -40 °C |
| Maximum Operating Temperature | +110 °C |
| Minimum Operating Supply Voltage | 4 V |
| Maximum Operating Supply Voltage | 30 V |
| Package Type | TO-92 |
| Length | 5.2 mm |
| Height | 5.2 mm |
| Width | 4.19 mm |
| Sensor Gain | 10 mV/°C |
| Dimensions | 5.2 x 4.19 x 5.2 mm |
Key Features
- Calibrated Directly in Celsius: The LM35CAZ/NOPB is calibrated directly in Centigrade, eliminating the need to subtract a large constant voltage from the output to obtain convenient Centigrade scaling.
- Linear Output: The device provides a linear output voltage proportional to the temperature, with a scale factor of 10 mV/°C.
- High Accuracy: Offers typical accuracies of ±0.2°C at room temperature and ±0.75°C over the full temperature range.
- Low Self-Heating: Draws only 60 μA from the supply, resulting in very low self-heating of less than 0.1°C in still air.
- Low Output Impedance: Features low-output impedance, making it easy to interface with readout or control circuitry.
- Wide Operating Range: Operates from 4 V to 30 V and is rated for a temperature range of -40°C to +110°C.
Applications
- Home Appliances: Suitable for use in various home appliances due to its high accuracy and reliability.
- Mobile Phones and Gaming Devices: Used in mobile phones and gaming devices for temperature monitoring and management.
- Disk Drives and Battery Management: Employed in disk drives and battery management systems to monitor temperature.
- Portable Medical Instruments: Utilized in portable medical instruments where precise temperature measurement is critical.
- Printers and HVAC Systems: Used in printers and HVAC systems for temperature control and monitoring.
Q & A
- What is the operating temperature range of the LM35CAZ/NOPB?
The LM35CAZ/NOPB operates within a temperature range of -40°C to +110°C.
- What is the output type of the LM35CAZ/NOPB?
The output type is analogue voltage, with a scale factor of 10 mV/°C.
- What is the typical accuracy of the LM35CAZ/NOPB at room temperature?
The typical accuracy at room temperature is ±0.2°C.
- What is the power supply range for the LM35CAZ/NOPB?
The device operates from 4 V to 30 V.
- What is the current draw of the LM35CAZ/NOPB?
The device draws only 60 μA from the supply.
- What is the package type of the LM35CAZ/NOPB?
The package type is TO-92.
- Is the LM35CAZ/NOPB RoHS compliant?
Yes, the LM35CAZ/NOPB is RoHS compliant.
- What are some common applications of the LM35CAZ/NOPB?
Common applications include home appliances, mobile phones, gaming devices, disk drives, battery management, portable medical instruments, and HVAC systems.
- Does the LM35CAZ/NOPB require external calibration or trimming?
No, the LM35CAZ/NOPB does not require any external calibration or trimming.
- What is the self-heating characteristic of the LM35CAZ/NOPB?
The device has very low self-heating of less than 0.1°C in still air.
