ADT7422

RECOMMENDED FOR NEW DESIGNS

±0.1°C Accuracy, 16-Bit, Digital I²C Temperature Sensor for VSM Applications

Data Sheet (Rev. A) Product Selection Table

Part Models: 1
1ku List Price: Starting From $3.20

Viewing:

Part Details

Accuracy meets clinical thermometry specification of the ASTM E1112 when soldered onto the final PCB
- ±0.1°C from 25°C to 50°C at 3.0 V
- ±0.25°C from −20°C to +105°C at 2.7 V to 3.3 V
Ultralow temperature drift: 0.0073°C
- National Institute of Standards and Technology (NIST) traceable or equivalent
- Fast first temperature conversion at power-up of 6 ms
Simple implementation
- No temperature calibration or correction required
- No linearity correction required

Low power
- 140 μW typical at 3.0 V in 1 SPS mode
- 6 μW typical at 3.0 V in shutdown mode
Programmable interrupts
- Critical overtemperature interrupt
- Overtemperature and undertemperature interrupt
I²C-compatible interface
16-lead, 4 mm × 4 mm, RoHS compliant LFCSP

Part Models: 1
1ku List Price: Starting From $3.20

Documentation

Data Sheet 1

ADT7422: ±0.1°C Accuracy, 16-Bit, Digital I²C Temperature Sensor for VSM Applications Data Sheet (Rev.A) 02/06/2020

Technical Articles 2

How an Aha! Moment Made Temperature Measurement Easier 04/13/2021

Silicon Temperature Sensing with Precision—An Autobiographical Look at Measuring Temperature to ±0.1°C 09/01/2020

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
ADT7422CCPZ-RL7	16-Lead LFCSP (4mm x 4mm)	Material Declaration Reliablity Data	Ultra Librarian SamacSys

This is the most up-to-date revision of the Data Sheet.

Software Resources

Device Drivers 1

ADT74x, ADT73x GitHub no-OS Driver Source Code

Can't find the software or driver you need?

Tools & Simulations

IBIS Model 1

ADT7422 IBIS Model

Evaluation Kits

±0.1°C, ±0.25°C & ±0.5°C Accurate Temperature Sensor Evaluation Platform

Buy Now View Details

Features and Benefits

Fully featured Arduino shield for the ADT7410, ADT7420, ADT7422, ADT7310, and ADT7320 digital temperature sensors. On board ribbon cable connectors facilitate either I²C or SPI interface to miniature remote sensor boards.

PC control in conjunction with the following Software IDE’s:

Analysis | Control | Evaluation (ACE) Software
Arduino
Mbed

PC control in conjunction with the following Hardware Systems:

SDP-S, SDP-B, SDP-K1 and Arduino

Compatible with Windows 7, Windows 8, and Windows 10

Temperature Sensor Evaluation Kit contains the following boards:

EVAL-ADT7420ARDZ
EVAL-ADT7420MBZ
EVAL-ADT7320MBZ

The following evaluation board can be ordered separately where ±0.1°C accurate measurements are required.

EVAL-ADT7422MBZ

Product Details

The EVAL-TempSense-ARDZ is an evaluation board kit containing three evaluation boards that allows easy evaluation of the functionality of ADIs precision digital temperature sensors. Interface to the sensors can be either directly on the Arduino shield or by ribbon cable connected to external sensors. Consult the ADT7410, ADT7420, ADT7422, ADT7310, and ADT7320 data sheets in conjunction with the user guide when using the EVAL-TempSense-ARDZ with the Arduino integrated development environment (IDE) or the Analysis Control Evaluation (ACE) Software.

The ADT7410, ADT7420, ADT7422, ADT7310, and ADT7320 are high accuracy digital temperature sensors offering breakthrough performance over a wide industrial temperature range. The devices contain an internal band gap reference, a temperature sensor, and a 16-bit analog-to-digital converter (ADC) to monitor and digitize the temperature to 0.0078°C resolution. The devices are available in I²C or SPI versions.