The ADT7420 is a 16-bit digital I2C temperature sensor with an accuracy of ±0.25°C. It features high performance, ease of implementation, low power consumption, and a wide operating range.
The ADT7420 is a high-precision digital temperature sensor featuring a 16-bit resolution and an accuracy of ±0.25°C over an extended temperature range. It utilizes an I2C interface for communication and includes features such as programmable interrupt thresholds and low-power shutdown modes. The device is housed in a 16-lead 4 mm × 4 mm LFCSP package and is RoHS compliant.
The document provides comprehensive technical specifications, including temperature accuracy under various voltage and temperature conditions, power consumption in different modes (Normal, 1 SPS, Shutdown), and I2C timing parameters. It also details the pin configuration, register maps for configuration and status, and application information for thermal response and power decoupling. This manual is written in Chinese.
| ADC Resolution | 16 bits |
|---|---|
| Temperature Resolution | 0.0078°C |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Normal Mode Power Consumption | 700 µW |
| Shutdown Mode Current | 2.0 µA |
| Package Type | 16-lead 4 mm × 4 mm LFCSP |
| I2C Clock Frequency | 400 kHz |
The device offers a 16-bit temperature resolution, providing a resolution of 0.0078°C.
The device operates with a supply voltage between 2.7 V and 5.5 V.
The rated working temperature range extends up to +150°C.
A fast first power-on temperature conversion requires 6 ms.