ADT7311
RECOMMENDED FOR NEW DESIGNSAutomotive, ±0.5°C Accurate, 16-Bit Digital SPI Temperature Sensor
- Part Models
- 3
- 1ku List Price
- Starting From $2.32
Overview
- Qualified for automotive applications
- High performance
- Temperature accuracy
- ±0.5°C from −40°C to +105°C (2.7 V to 3.6 V)
- ±0.4°C from −40°C to +105°C (3.0 V)
- 16-Bit Temperature Resolution: 0.0078°C
- Fast First Conversion on Power-Up of 6ms
- Easy Implementation
- No Temperature Calibration/Correction Required by User
- No Linearity Correction Required
- Low Power
- Power Saving 1 Sample Per Second (SPS) mode
- 700µW Typical at 3.3V in Normal Mode
- 7µW Typical at 3.3V in Shutdown Mode
- Wide operating ranges
- Temperature range: −40°C to +150°C
- Voltage range: 2.7 V to 5.5 V
- Programmable interrupts
- Critical Overtemperature Interrupt
- Overtemperature/Undertemperature Interrupt
- SPI-Compatible Interface
- 8-Lead Narrow SOIC RoHS-Compliant Package
- AEC-Q100 Qualified for Automotive Applications
The ADT7311 is a high accuracy digital temperature sensor in a narrow 8-lead SOIC package. It contains a band gap temperature reference and a 16-bit ADC to monitor and digitize the temperature to a 0.0078°C resolution. The ADC resolution, by default, is set to 13 bits (0.0625°C). The ADC resolution is a user programmable mode that can be changed through the serial interface.
The ADT7311 is guaranteed to operate over supply voltages from 2.7 V to 5.5 V. Operating at 3.3 V, the average supply current is typically 210 μA. The ADT7311 has a shutdown mode that powers down the device and offers a shutdown current of typically 2 μA. The ADT7311 is rated for operation over the −40°C to +150°C temperature range.
The CT pin is an open-drain output that becomes active when the temperature exceeds a programmable critical temperature limit. The default critical temperature limit is 147°C. The INT pin is also an open-drain output that becomes active when the temperature exceeds a programmable limit. The INT and CT pins can operate in either comparator or interrupt mode.
PRODUCT HIGHLIGHTS
- Ease of use, no calibration or correction required by the user.
- Low power consumption.
- Excellent long-term stability and reliability.
- Packaged in an 8-lead SOIC, RoHS-compliant package.
APPLICATIONS
- Battery management
- Climate control and infotainment
- Lighting
- Powertrain
- Thermocouple cold junction compensation
- GPS
Documentation
Circuit Note 1
Device Drivers 1
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 |
|---|---|---|---|
| ADT7311WTRZ | 8-Lead SOIC | ||
| ADT7311WTRZ-RL | 8-Lead SOIC | ||
| ADT7311WTRZ-RL7 | 8-Lead SOIC |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Jul 20, 2012 - 12_0105 Halogen Free Material Change for Select SOIC Narrow and Wide Body Products Assembled at Amkor |
||
| ADT7311WTRZ | PRODUCTION | |
| ADT7311WTRZ-RL | PRODUCTION | |
| ADT7311WTRZ-RL7 | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Device Drivers 1
Evaluation Software 0
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