Overview
The ADT75ARM, produced by Analog Devices Inc., is a comprehensive digital temperature sensor designed for precise temperature monitoring. It is available in 8-lead MSOP and SOIC packages, making it suitable for a variety of applications where compact size and high accuracy are crucial. The device integrates a band gap temperature sensor and a 12-bit analog-to-digital converter (ADC), ensuring high accuracy and reliability in temperature measurements.
Key Specifications
| Specification | Value |
|---|---|
| Temperature Accuracy | ±2°C from -25°C to 100°C, ±3°C from 100°C to 125°C |
| Resolution | 12-bit |
| Temperature Sensing Range | -55°C to 125°C |
| Interface | SMBus/I2C compatible |
| Package | 8-lead MSOP, 8-lead SOIC |
| Power Consumption | Typically 3 µA in shutdown mode at VDD = 3.3 V, 5.5 µA at VDD = 5 V |
| Conversion Time | Typically 60 ms |
Key Features
- High accuracy temperature measurements with ±2°C accuracy from -25°C to 100°C and ±3°C from 100°C to 125°C
- 12-bit resolution for precise temperature readings
- SMBus/I2C compatible serial interface for easy communication with microcontrollers
- One-shot measurement mode for power-saving and reduced current consumption
- Programmable temperature limit settings for THYST and TOS setpoints
- Shutdown mode to minimize power consumption
- No external sensing components required
Applications
The ADT75ARM is suitable for a wide range of applications where accurate and reliable temperature monitoring is essential. These include:
- Industrial automation and control systems
- Medical devices and equipment
- Aerospace and defense systems
- Automotive systems, especially in engine and battery management
- Consumer electronics, such as smart home devices and appliances
Q & A
- What is the temperature accuracy of the ADT75ARM?
The ADT75ARM has a temperature accuracy of ±2°C from -25°C to 100°C and ±3°C from 100°C to 125°C. - What is the resolution of the ADT75ARM?
The ADT75ARM has a 12-bit resolution. - What type of interface does the ADT75ARM use?
The ADT75ARM uses an SMBus/I2C compatible serial interface. - What is the typical conversion time for the ADT75ARM?
The typical conversion time is 60 ms. - Does the ADT75ARM require external sensing components?
No, the ADT75ARM does not require external sensing components. - What is the power consumption in shutdown mode?
The power consumption is typically 3 µA at VDD = 3.3 V and 5.5 µA at VDD = 5 V in shutdown mode. - Can the ADT75ARM be programmed for specific temperature limits?
Yes, the ADT75ARM allows programmable temperature limit settings for THYST and TOS setpoints. - What are the available packages for the ADT75ARM?
The ADT75ARM is available in 8-lead MSOP and 8-lead SOIC packages. - How does the one-shot measurement mode work?
The one-shot measurement mode allows the ADT75ARM to perform a single temperature measurement and then enter shutdown mode to reduce power consumption. This mode is initiated by writing to the one-shot register. - Can the ADT75ARM be taken out of shutdown mode?
Yes, the ADT75ARM can be taken out of shutdown mode by writing 0 to Bit D0 in the configuration register. It typically takes 1.7 ms to come out of shutdown mode.
