Overview
The NCT175DMR2G is a highly versatile and accurate digital temperature sensor produced by onsemi. This device is designed for a wide range of applications requiring precise temperature monitoring and control. The NCT175 features a 12-bit temperature-to-digital converter, providing a high resolution of 0.0625°C. It operates over a broad temperature range from −55°C to +125°C, making it suitable for various industrial, automotive, and consumer electronics environments. The sensor communicates via the SMBus/I2C interface, allowing for easy integration into complex systems. Additionally, it includes an over-temperature/interrupt output pin to signal out-of-limit conditions, enhancing system reliability and safety.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Temperature Range | −55°C to +125°C | °C |
| Temperature Accuracy | ±1°C (0°C to +70°C), ±2°C (−25°C to +100°C), ±3°C (−55°C to +125°C) | °C |
| ADC Resolution | 12 bits | Bits |
| Temperature Resolution | 0.0625°C | °C |
| Temperature Conversion Time | 48.5 ms (one-shot mode) | ms |
| Update Rate | 80 ms | ms |
| Supply Voltage | 3.0 V to 5.5 V | V |
| Average Supply Current | 0.575 mA at 3.3 V | mA |
| Shutdown Mode Current | 3 μA at 3.3 V | μA |
| Package Type | 8-lead Micro8 | - |
| Interface | SMBus/I2C | - |
Key Features
- 12-bit temperature-to-digital converter with 0.0625°C resolution
- Wide operating temperature range from −55°C to +125°C
- SMBus/I2C interface for serial communication
- Over-temperature/interrupt output pin (OS/ALERT) with configurable polarity and mode (comparator or interrupt)
- Shutdown mode for low power consumption
- One-shot mode for on-demand temperature measurements
- Support for SMBus/ALERT
- Three address selection pins (A2, A1, A0) allowing up to 8 devices on a single bus
- Pin and register compatibility with NCT75, LM75, and TCN75
Applications
- Industrial automation and control systems
- Automotive systems for temperature monitoring and control
- Consumer electronics requiring precise temperature sensing
- Server and data center thermal management
- Medical devices and equipment
- Aerospace and defense applications
Q & A
- What is the temperature range of the NCT175?
The NCT175 operates over a temperature range from −55°C to +125°C.
- What is the resolution of the temperature measurements provided by the NCT175?
The NCT175 provides a temperature resolution of 0.0625°C.
- What interface does the NCT175 use for communication?
The NCT175 uses the SMBus/I2C interface for serial communication.
- How does the OS/ALERT pin function?
The OS/ALERT pin is an over-temperature/interrupt output pin that can be configured to operate in either comparator or interrupt mode and can be set as active high or active low.
- What is the power consumption in shutdown mode?
In shutdown mode, the NCT175 consumes approximately 3 μA at 3.3 V supply voltage.
- Can multiple NCT175 devices be connected to a single bus?
- What is the typical supply current of the NCT175?
The average supply current of the NCT175 is 0.575 mA at 3.3 V.
- What is the package type of the NCT175?
The NCT175 is available in an 8-lead Micro8 package.
- Is the NCT175 compatible with other temperature sensors?
- How long does it take for the NCT175 to perform a temperature conversion in one-shot mode?
The temperature conversion time in one-shot mode is approximately 48.5 ms.
