Overview
The LM61CIM3/NOPB is a precision integrated-circuit temperature sensor produced by Texas Instruments. This device is capable of sensing temperatures over a range of –30°C to 100°C and operates from a single 2.7-V to 10-V supply. The LM61 is designed to provide a linear output voltage that is directly proportional to the temperature, with a slope of 10 mV/°C and a 600-mV offset, allowing for the measurement of negative temperatures without the need for a negative supply voltage. The sensor is available in SOT-23 and TO-92 packages, making it suitable for various applications where compact size and high accuracy are required.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Accuracy at 25°C | ±2°C or ±3°C | °C |
| Accuracy for –25°C to 85°C | ±3°C | °C |
| Accuracy for –30°C to 100°C | ±4°C | °C |
| Temperature Slope | 10 mV/°C | mV/°C |
| Power Supply Voltage | 2.7 V to 10 V | V |
| Current Drain at 25°C | 125 µA | µA |
| Nonlinearity | ±0.8°C | °C |
| Output Impedance | 800 Ω | Ω |
| Operating Temperature Range | –30°C to 100°C | °C |
Key Features
- Calibrated linear scale factor of 10 mV/°C
- Suitable for remote applications
- UL Recognized Component
- Low power consumption (125 µA at 25°C)
- Low self-heating (less than 0.2°C in still air)
- Simple class A output stage
- 600-mV offset for negative temperature sensing
- Compact SOT-23 and TO-92 packages
Applications
- Cellular Phones
- Computers
- Power Supply Modules
- Battery Management
- FAX Machines
- Printers
- HVAC Systems
- Disk Drives
- Appliances
Q & A
- What is the temperature range of the LM61CIM3/NOPB? The LM61CIM3/NOPB can sense temperatures from –30°C to 100°C.
- What is the power supply voltage range for the LM61CIM3/NOPB? The device operates from a single 2.7-V to 10-V supply.
- What is the accuracy of the LM61CIM3/NOPB at 25°C? The accuracy at 25°C is ±2°C or ±3°C.
- What is the output voltage slope of the LM61CIM3/NOPB? The output voltage slope is 10 mV/°C.
- What is the typical current drain of the LM61CIM3/NOPB at 25°C? The typical current drain is 125 µA.
- Is the LM61CIM3/NOPB suitable for remote applications? Yes, it is suitable for remote applications.
- What are the available package types for the LM61CIM3/NOPB? The device is available in SOT-23 and TO-92 packages.
- How does the LM61CIM3/NOPB handle negative temperatures? It includes a 600-mV offset, allowing for the measurement of negative temperatures without a negative supply voltage.
- What is the output impedance of the LM61CIM3/NOPB? The maximum output impedance is 800 Ω.
- Is the LM61CIM3/NOPB UL recognized? Yes, it is a UL Recognized Component.
