Overview
The LM94022BIMG/NOPB, produced by Texas Instruments, is a precision analog output CMOS integrated-circuit temperature sensor. This device features a selectable linear negative temperature coefficient (NTC) and is designed for a wide range of temperature-sensing applications. It operates within a low voltage range of 1.5V to 5.5V and has a low supply current of 5.4 µA, making it suitable for battery-powered systems and general temperature-sensing needs. The LM94022BIMG/NOPB is AEC-Q100 Grade 0 qualified and manufactured on an automotive grade flow, ensuring high reliability and performance in demanding environments.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Voltage Range | 1.5 V to 5.5 V | V |
| Supply Current | 5.4 µA | µA |
| Operating Temperature Range | -50°C to 150°C | °C |
| Temperature Accuracy (20°C to 40°C) | ±1.5°C | °C |
| Temperature Accuracy (-50°C to 70°C) | ±1.8°C | °C |
| Temperature Accuracy (-50°C to 90°C) | ±2.1°C | °C |
| Temperature Accuracy (-50°C to 150°C) | ±2.7°C | °C |
| Output Source Current Capability | ±50 µA | µA |
| Package Type | SC70-5 | |
| Gain Select Options | -5.5 mV/°C, -8.2 mV/°C, -10.9 mV/°C, -13.6 mV/°C | mV/°C |
Key Features
- Low 1.5-V to 5.5-V operation with low 5.4-µA supply current, making it ideal for battery-powered systems.
- Push-pull output with ±50-µA source current capability for driving heavy transient loads.
- Four selectable gains (-5.5 mV/°C, -8.2 mV/°C, -10.9 mV/°C, and -13.6 mV/°C) controlled by GS1 and GS0 logic inputs.
- Very accurate over a wide temperature range of -50°C to +150°C with specified temperature accuracy.
- Output is short-circuit protected.
- Extremely small SC70 package.
- Footprint compatible with the industry-standard LM20 temperature sensor.
- AEC-Q100 Grade 0 qualified and manufactured on an automotive grade flow.
Applications
The LM94022BIMG/NOPB is suitable for a variety of applications, including:
- Battery-powered systems due to its low power consumption.
- Automotive systems, given its AEC-Q100 Grade 0 qualification.
- General temperature-sensing applications in industrial and consumer electronics.
- Systems requiring high accuracy temperature measurement over a wide temperature range.
- Applications involving heavy transient loads, such as the input of sample-and-hold analog-to-digital converters.
Q & A
- What is the operating voltage range of the LM94022BIMG/NOPB?
The operating voltage range is from 1.5 V to 5.5 V. - What is the supply current of the LM94022BIMG/NOPB?
The supply current is 5.4 µA. - What is the temperature accuracy of the LM94022BIMG/NOPB at 20°C to 40°C?
The temperature accuracy is ±1.5°C. - How many gain options are available for the LM94022BIMG/NOPB?
There are four gain options: -5.5 mV/°C, -8.2 mV/°C, -10.9 mV/°C, and -13.6 mV/°C. - What is the output current capability of the LM94022BIMG/NOPB?
The output can source or sink up to ±50 µA. - Is the LM94022BIMG/NOPB suitable for automotive applications?
Yes, it is AEC-Q100 Grade 0 qualified and manufactured on an automotive grade flow. - What package type does the LM94022BIMG/NOPB come in?
The package type is SC70-5. - Is the output of the LM94022BIMG/NOPB short-circuit protected?
Yes, the output is short-circuit protected. - Can the gain of the LM94022BIMG/NOPB be dynamically changed during operation?
Yes, the gain can be dynamically changed using the GS1 and GS0 logic inputs. - What is the footprint compatibility of the LM94022BIMG/NOPB?
The LM94022BIMG/NOPB is footprint compatible with the industry-standard LM20 temperature sensor.
