Overview
The LM94022BIMGX/NOPB is a precision analog output CMOS integrated-circuit temperature sensor manufactured by Texas Instruments. This device is designed with a selectable linear negative temperature coefficient (NTC) and features a class-AB output structure, providing strong output source and sink current capability. It is ideal for battery-powered systems and general temperature-sensing applications due to its low 5.4-µA supply current and 1.5-V to 5.5-V operating voltage range.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | SOT-SC70 (DCK) | |
| Pins | 5 | |
| Operating Temperature Range | -50 to 150 | °C |
| Supply Voltage | 1.5 to 5.5 | V |
| Supply Current | 5.4 µA | |
| Output Current Capability | ±50 µA | |
| Temperature Accuracy (20°C to 40°C) | ±1.5°C | |
| Temperature Accuracy (-50°C to 70°C) | ±1.8°C | |
| Temperature Accuracy (-50°C to 90°C) | ±2.1°C | |
| Temperature Accuracy (-50°C to 150°C) | ±2.7°C | |
| Sensor Gain Options | -5.5 mV/°C, -8.2 mV/°C, -10.9 mV/°C, -13.6 mV/°C |
Key Features
- AEC-Q100 Grade 0 qualified and manufactured on an Automotive Grade Flow.
- Low 1.5-V to 5.5-V operation with low 5.4-µA supply current, making it suitable 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.
- High temperature accuracy over a wide range: ±1.5°C for 20°C to 40°C, ±1.8°C for -50°C to 70°C, ±2.1°C for -50°C to 90°C, and ±2.7°C for -50°C to 150°C.
- Output is short-circuit protected.
- Extremely small SC70 package.
- Footprint compatible with the industry-standard LM20 temperature sensor.
- Digitally selectable gain for optimization and in-situ testing.
Applications
The LM94022BIMGX/NOPB is versatile and can be used in various applications, including:
- Battery-powered systems due to its low power consumption.
- General temperature-sensing applications across a wide temperature range.
- Automotive systems, given its AEC-Q100 Grade 0 qualification).
- Industrial and commercial temperature monitoring systems).
- Systems requiring high accuracy and reliability in temperature measurement).
Q & A
- What is the operating temperature range of the LM94022BIMGX/NOPB?
The operating temperature range is -50°C to 150°C).
- What are the supply voltage and current requirements for the LM94022BIMGX/NOPB?
The supply voltage is 1.5 V to 5.5 V, and the supply current is 5.4 µA).
- What are the selectable gains for the LM94022BIMGX/NOPB?
The selectable gains are -5.5 mV/°C, -8.2 mV/°C, -10.9 mV/°C, and -13.6 mV/°C).
- Is the LM94022BIMGX/NOPB suitable for automotive applications?
Yes, it is AEC-Q100 Grade 0 qualified and manufactured on an Automotive Grade Flow).
- What is the output current capability of the LM94022BIMGX/NOPB?
The output can source or sink up to ±50 µA).
- Is the output of the LM94022BIMGX/NOPB short-circuit protected?
Yes, the output is short-circuit protected.
- What is the package type and pin count of the LM94022BIMGX/NOPB?
The package type is SOT-SC70 (DCK) with 5 pins).
- Can the gain of the LM94022BIMGX/NOPB be dynamically changed during operation?
Yes, the gain can be dynamically changed using the gain select pins (GS1 and GS0).
- What is the temperature accuracy of the LM94022BIMGX/NOPB over different temperature ranges?
The temperature accuracy varies: ±1.5°C for 20°C to 40°C, ±1.8°C for -50°C to 70°C, ±2.1°C for -50°C to 90°C, and ±2.7°C for -50°C to 150°C).
- Is the LM94022BIMGX/NOPB footprint compatible with other industry-standard temperature sensors?
Yes, it is footprint compatible with the industry-standard LM20 temperature sensor.
