Overview
The LMT88DCKT from Texas Instruments is a precision analog output CMOS integrated-circuit temperature sensor. It operates over a wide temperature range of −55°C to 130°C, making it suitable for various industrial and automotive applications. The device is powered by a supply voltage ranging from 2.4 V to 5.5 V and consumes less than 10 μA of quiescent current, minimizing self-heating and power consumption. This sensor is a cost-effective alternative to thermistors and offers predictable curvature error, making it reliable for remote and harsh environment applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Temperature Range | −55 to 130 | °C |
| Power Supply Voltage Range | 2.4 to 5.5 | V |
| Quiescent Current | < 10 | μA |
| Output Current Capability | Source: 16 μA, Sink: 1 μA | μA |
| Output Voltage at 0°C | 1.8639 | V |
| Temperature Accuracy at 30°C | ±1.5 | °C |
| Maximum Junction Temperature | 150 | °C |
| Storage Temperature Range | −65 to 150 | °C |
| Package Type | SC70 (5-pin SOT) | |
| Body Size | 2.00 mm × 1.25 mm |
Key Features
- Precision analog output temperature sensor with a wide operating temperature range of −55°C to 130°C.
- Low power consumption: less than 10 μA quiescent current.
- Power supply voltage range: 2.4 V to 5.5 V.
- Predictable parabolic curvature error for high accuracy.
- Cost-effective alternative to thermistors.
- Shutdown capability intrinsic due to low power consumption.
- Handles capacitive loads up to 300 pF without additional components.
- Class A output stage providing low impedance output.
Applications
- Industrial applications.
- HVAC systems.
- Disk drives.
- Automotive systems.
- Portable medical instruments.
- Computers and printers.
- Battery management systems.
- Power supply modules.
- FAX machines and mobile phones.
Q & A
- What is the operating temperature range of the LMT88DCKT?
The LMT88DCKT operates over a temperature range of −55°C to 130°C. - What is the power supply voltage range for the LMT88DCKT?
The power supply voltage range is 2.4 V to 5.5 V. - How much quiescent current does the LMT88DCKT consume?
The LMT88DCKT consumes less than 10 μA of quiescent current. - What is the output current capability of the LMT88DCKT?
The device can source 16 μA and sink 1 μA. - What is the typical temperature accuracy of the LMT88DCKT at 30°C?
The typical temperature accuracy is ±1.5°C at 30°C. - How does the LMT88DCKT handle capacitive loads?
The LMT88DCKT can handle capacitive loads up to 300 pF without additional components. - What is the package type and body size of the LMT88DCKT?
The package type is SC70 (5-pin SOT) with a body size of 2.00 mm × 1.25 mm. - What are some common applications of the LMT88DCKT?
Common applications include industrial, HVAC, automotive, portable medical instruments, computers, printers, battery management systems, power supply modules, FAX machines, and mobile phones. - How does the LMT88DCKT manage shutdown?
The LMT88DCKT has intrinsic shutdown capability due to its low power consumption, allowing it to be powered directly from the output of many logic gates. - What is the maximum junction temperature for the LMT88DCKT?
The maximum junction temperature is 150°C.
