Overview
The ADT7420UCPZ-RL7, manufactured by Analog Devices Inc., is a high-accuracy digital temperature sensor designed to offer exceptional performance across a wide industrial temperature range. It is housed in a compact 16-lead, 4 mm × 4 mm LFCSP (Lead Frame Chip Scale Package) that is RoHS-compliant. The sensor features an internal band gap reference, a temperature sensor, and a 16-bit ADC, which together enable the monitoring and digitization of temperature with a resolution of up to 0.0078°C. The default ADC resolution is set to 13 bits (0.0625°C), but it can be adjusted via the serial interface. This device is known for its ease of use, requiring no temperature calibration or correction by the user, and its low power consumption, making it suitable for various industrial, instrumentation, and medical applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Temperature Range | -40°C | +150°C | °C | ||
| Supply Voltage | 2.7 V | 5.5 V | V | ||
| Supply Current (Normal Mode) | 210 μA | μA | At 3.3 V | ||
| Supply Current (Shutdown Mode) | 2.0 μA | μA | At 3.3 V | ||
| ADC Resolution (Default) | 13 bits (0.0625°C) | ||||
| ADC Resolution (Maximum) | 16 bits (0.0078°C) | ||||
| Temperature Accuracy | ±0.20°C | ±0.50°C | °C | Dependent on temperature range and supply voltage |
Key Features
- Ease of Use: No temperature calibration or correction required by the user.
- Low Power Consumption: Typical power consumption of 700 μW at 3.3 V in normal mode and 7 μW in shutdown mode.
- High Accuracy: Temperature accuracy up to ±0.20°C over certain temperature ranges.
- Programmable Interrupts: Critical overtemperature and undertemperature interrupts available.
- I2C-Compatible Interface: Supports I2C communication protocol with four possible I2C addresses via Pin A0 and Pin A1.
- Compact Package: 16-lead, 4 mm × 4 mm LFCSP package that is RoHS-compliant.
Applications
- RTD and Thermistor Replacement: Can replace traditional temperature sensing methods with higher accuracy and reliability.
- Medical Equipment: Suitable for precise temperature monitoring in medical devices.
- Industrial Control and Test: Used in various industrial applications requiring accurate temperature measurement.
- Food Transportation and Storage: Ensures temperature monitoring in food logistics and storage.[li>
- Environmental Monitoring and HVAC: Ideal for temperature monitoring in environmental and HVAC systems.[li>
- Laser Diode Temperature Control: Used for precise temperature control in laser diode applications.[li>
Q & A
- What is the temperature range of the ADT7420UCPZ-RL7?
The ADT7420UCPZ-RL7 operates over a temperature range of -40°C to +150°C.
- What is the supply voltage range for the ADT7420UCPZ-RL7?
The supply voltage range is from 2.7 V to 5.5 V.
- What is the default ADC resolution of the ADT7420UCPZ-RL7?
The default ADC resolution is 13 bits, which corresponds to 0.0625°C.
- Can the ADC resolution be adjusted?
- What is the typical supply current in normal mode and shutdown mode?
- Does the ADT7420UCPZ-RL7 require temperature calibration or correction?
- What communication protocol does the ADT7420UCPZ-RL7 support?
- How many possible I2C addresses does the ADT7420UCPZ-RL7 have?
- What are the key applications of the ADT7420UCPZ-RL7?
- Is the ADT7420UCPZ-RL7 RoHS-compliant?
- How many possible I2C addresses does the ADT7420UCPZ-RL7 have?
