Key facts
- Brand
- Analog Devices
- Model
- ADT7420 (
- Category
- Other Electronics
- Documents
- 2
- Languages
- EN
- Last added
- 2012-08-02
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Analog Devices Temperature Sensors Selection Guide
This document serves as a product leaflet and selection guide for Analog Devices' range of temperature sensors. It highlights the flagship ADT7320 (SPI) and ADT7420 (PC/SMBus) digital temperature sensors, which offer 16-bit resolution and an accuracy of ±0.25°C over a wide operating range of -20°C to +105°C.
The guide details the features of these flagship devices, such as no calibration requirement, power-saving modes, and critical temperature indicators. It also lists various other Analog Devices analog and digital output sensors available for different applications, including RTD replacement, medical equipment, and industrial control.
Analog Devices ADT7420 ( specifications
| Accuracy (ADT7320/ADT7420) | +0.25°C over -20°C to +105°C range |
|---|---|
| Operating Temperature Range (ADT7320/ADT7420) | -40°C to +150°C |
| Resolution (ADT7320/ADT7420) | 16-bit |
| Supply Voltage Range (ADT7320/ADT7420) | 2.7 V to 5.5 V |
| Supply Current (ADT7320/ADT7420) | 210 µA typical at 3.3V |
| Low Power Mode Current (ADT7320/ADT7420) | 46 µA typical at 3.3V |
All Analog Devices ADT7420 ( documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the accuracy of the ADT7320 and ADT7420 sensors?
They achieve an accuracy of ±0.25°C over a temperature range of -20°C to +105°C.
Do the ADT7320 and ADT7420 require calibration?
No, these sensors are fully calibrated and require no additional signal conditioning or calibration.
What is the temperature accuracy of the ADT7420?
The sensor achieves ±0.20 °C accuracy from ‑10 °C to +85 °C (3.0 V‑3.3 V) and ±0.25 °C from ‑20 °C to +105 °C (3.0 V‑3.6 V).
From: Analog Devices ADT7420 Digital I2C Temperature Sensor Datasheet
How much power does the ADT7420 use in normal mode?
In normal (continuous) mode it consumes about 700 µW at a 3.3 V supply.
From: Analog Devices ADT7420 Digital I2C Temperature Sensor Datasheet