Overview
The ADT7320UCPZ-RL7 is a high-accuracy digital temperature sensor produced by Analog Devices Inc. This device is designed to offer exceptional performance over a wide industrial temperature range, making it suitable for various applications requiring precise temperature monitoring. The ADT7320 is housed in a 16-lead, RoHS-compliant, 4 mm × 4 mm LFCSP package and features an internal band gap reference, a temperature sensor, and a 16-bit analog-to-digital converter (ADC) to monitor and digitize temperature with a resolution of up to 0.0078°C.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Temperature Range | -40°C | - | +150°C | - | Operating range |
| Supply Voltage | 2.7 V | - | 5.5 V | - | Operating range |
| Supply Current (Normal Mode) | - | 210 µA | 265 µA | - | |
| Supply Current (1 SPS Mode) | - | 46 µA | - | - | |
| Shutdown Current | - | 2.0 µA | 15 µA | - | |
| Resolution | - | 13 bits (default), up to 16 bits | - | - | |
| Interface | - | SPI-compatible | - | - | - |
Key Features
- High accuracy: ±0.20°C from −10°C to +85°C and ±0.25°C over the full range of −40°C to +150°C
- Fast first temperature conversion on power-up of 6 ms
- No temperature calibration or correction required by the user
- Low power consumption: 700 µW typical at 3.3 V in normal mode and 7 µW typical at 3.3 V in shutdown mode
- Programmable interrupts for overtemperature and undertemperature
- Programmable resolution: default 13 bits, up to 16 bits
- Shutdown mode to reduce power consumption
Applications
- RTD and thermistor replacement
- Thermocouple cold junction compensation
- Medical equipment
- Industrial control and test
- Food transportation and storage
- Environmental monitoring and HVAC
- Laser diode temperature control
Q & A
- What is the temperature accuracy of the ADT7320UCPZ-RL7?
The ADT7320UCPZ-RL7 has a temperature accuracy of ±0.20°C from −10°C to +85°C and ±0.25°C over the full range of −40°C to +150°C.
- What is the typical supply current in normal mode at 3.3 V?
The typical supply current in normal mode at 3.3 V is 210 µA.
- Does the ADT7320UCPZ-RL7 require user calibration or correction?
No, the ADT7320UCPZ-RL7 does not require user calibration or correction.
- What is the resolution of the ADT7320UCPZ-RL7?
The resolution is default 13 bits, but it can be programmed up to 16 bits.
- What interface does the ADT7320UCPZ-RL7 use?
The ADT7320UCPZ-RL7 uses an SPI-compatible interface.
- What are the programmable interrupts available on the ADT7320UCPZ-RL7?
The device has programmable interrupts for overtemperature and undertemperature.
- What is the typical shutdown current at 3.3 V?
The typical shutdown current at 3.3 V is 2.0 µA.
- What are some common applications of the ADT7320UCPZ-RL7?
Common applications include RTD and thermistor replacement, thermocouple cold junction compensation, medical equipment, industrial control and test, food transportation and storage, environmental monitoring and HVAC, and laser diode temperature control.
- What is the package type of the ADT7320UCPZ-RL7?
The ADT7320UCPZ-RL7 is housed in a 16-lead, RoHS-compliant, 4 mm × 4 mm LFCSP package.
- What is the first temperature conversion time on power-up?
The first temperature conversion on power-up takes 6 ms.
