AD22100K is a temperatures sensor IC (±0 to +100 °C) made by Analog Devices. This posting will provide the OSS-ECAL(Open Source Software for Electronic Components Abstraction Layer) for AD22100K.
MCU interface : ADC
CAUTION:Please be sure to refer to the latest version of the Datasheet prior to actual design.
AD22100K
General description
The AD22100 is a monolithic temperature sensor with on-chip signal conditioning. With a temperature range of -50°C to +150°C, it is suitable for use in many HVAC, instrumentation, and automotive applications.
The signal conditioning eliminates the need for any trimming, buffering, or linearization circuitry, greatly simplifying the system design and reducing the overall system cost.
The output voltage is proportional to the temperature x the supply voltage (ratiometric). The output swings from 0.25 V at −50°C to +4.75 V at +150°C using a single +5.0 V supply.
Due to its ratiometric nature, the AD22100 offers a costeffective solution when interfacing to an analog-to-digital converter. This is accomplished by using the ADC’s +5 V power supply as a reference to both the ADC and the AD22100 eliminating the need for and cost of a precision reference.
Feature
- 200°C temperature span
- Accuracy better than ±2% of full scale
- Linearity better than ±1% of full scale
- Temperature coefficient of 22.5 mV/°C
- Output proportional to temperature × V+
- Single-supply operation
- Reverse voltage protection
- Minimal self-heating
- High level, low impedance output
Application
- HVAC systems
- System temperature compensation
- Board level temperature sensing
- Electronic thermostats
OSS-ECAL specification
API Function
etSTS oAD22100K( etCMD cmd, float32* rlt )
The oAD22100K function is an API function that executes AD22100K processing according to the command in the argument.
| Return value | etSTS | OSS-ECAL status code | |
| eSTS_FIN | Completed successfully | ||
| eSTS_ERR_MIN | Minimum temperature error (rlt is minimum temperature) | ||
| eSTS_ERR_MAX | Maximum temperature error (rlt is maximum temperature) | ||
| eSTS_ERR_HAL_ADC | HAL ADC Error | ||
| eSTS_ERR_COMMAND_CODE | Command selection error | ||
| eSTS_ERR_OTHERS_RUN | Other components are executing the process | ||
| eSTS_ERR_HAL_OTHERS_RUN | Other application is running HAL | ||
| eSTS_ERR_ADC_OBJECT | AD conversion object selection error | ||
| Parameter IN | etCMD cmd | OSS-ECAL command code | |
| eCMD_START | Command to start AD conversion. | ||
| eCMD_READ | Command that reads the AD conversion value, converts the AD conversion value to a characteristic Temperature, and stores the Temperature in rlt. AD conversion value to temperature conversion equation Voltage value = (AD conversion value × VDD) / ( 2AD bit ) Temperature = ((voltage value – voltage offset value) / gain) + Temperature offset value (Min, Max Limit) | ||
| eCMD_START_READ | Command that starts AD conversion, waits for AD conversion to finish, reads out the AD conversion value, converts the AD conversion value to a characteristic Temperature, and stores the Temperature in rlt. AD conversion value to temperature conversion equation Voltage value = (AD conversion value × VDD) / ( 2AD bit ) Temperature = ((voltage value – voltage offset value) / gain) + Temperature offset value (Min, Max Limit) | ||
| Parameter OUT | float32* rlt | Temperature ±0.0 to +100.0 [°C] |
Command Correspondence Table by HAL
| Arduino | Arduino | eCMD_START_READ |
| ARM | Mbed | eCMD_START_READ |
| Infineon | ModusToolbox | eCMD_START_READ |
| NXP | MCUXpresso MXRT1051B_1052B | eCMD_START eCMD_READ eCMD_START_READ |
| Renesas | SSP | eCMD_START eCMD_READ eCMD_START_READ |
| STM | STM32Cube FW_F4 | eCMD_START eCMD_READ eCMD_START_READ |
etSTS oAD22100K_START(void)
The oAD22100K_START function is an API function to start AD conversion of the AD22100K.
| Return value | etSTS | OSS-ECAL status code | |
| eSTS_FIN | Completed successfully | ||
| eSTS_ERR_HAL_ADC | HAL ADC Error | ||
| eSTS_ERR_OTHERS_RUN | Other components are executing the process | ||
| eSTS_ERR_HAL_OTHERS_RUN | Other application is running HAL | ||
| eSTS_ERR_ADC_OBJECT | AD conversion object selection error |
Function Correspondence Table by HAL
| Arduino | Arduino | – |
| ARM | Mbed | – |
| Infineon | ModusToolbox | – |
| NXP | MCUXpresso MXRT1051B_1052B | X |
| Renesas | SSP | X |
| STM | STM32Cube FW_F4 | X |
etSTS oAD22100K_READ( float32* rlt )
The oAD22100K_READ function is an API function that checks for the end of AD conversion of the AD22100K, reads the AD conversion value, converts the AD conversion value to a characteristic temperature, and stores the temperature in rlt.
AD conversion value to temperature conversion equation
Voltage value = (AD conversion value × VDD) / ( 2AD bit )
Temperature = ((voltage value – voltage offset value) / gain) + Temperature offset value (Min, Max Limit)
| Return value | etSTS | OSS-ECAL status code | |
| eSTS_FIN | Completed successfully | ||
| eSTS_ERR_MIN | Minimum temperature error (rlt is minimum temperature) | ||
| eSTS_ERR_MAX | Maximum temperature error (rlt is maximum temperature) | ||
| eSTS_ERR_HAL_ADC | HAL ADC Error | ||
| eSTS_ERR_TIMEOUT | ADC Timeout error (AUTOSAR only) | ||
| eSTS_ERR_OTHERS_RUN | Other components are executing the process | ||
| eSTS_ERR_ADC_OBJECT | AD conversion object selection error | ||
| Parameter OUT | float32* rlt | Temperature ±0.0 to +100.0 [°C] |
Function Correspondence Table by HAL
| Arduino | Arduino | – | |
| ARM | Mbed | – | |
| Infineon | ModusToolbox | – | |
| NXP | MCUXpresso MXRT1051B_1052B | X | |
| Renesas | SSP | X | |
| STM | STM32Cube FW_F4 | X | Time-out time HAL_MAX_DELAY |
etSTS oAD22100K_START_READ( float32* rlt )
The oAD22100K_START_READ function is an API function that starts an AD conversion of the AD22100K, waits for the AD conversion to finish, reads the AD conversion value, converts the AD conversion value to a temperature characteristic, and stores the temperature in rlt.
AD conversion value to temperature conversion equation
Voltage value = (AD conversion value × VDD) / ( 2AD bit )
Temperature = ((voltage value – voltage offset value) / gain) + Temperature offset value (Min, Max Limit)
| Return value | etSTS | OSS-ECAL status code | |
| eSTS_FIN | Completed successfully | ||
| eSTS_ERR_MIN | Minimum temperature error (rlt is minimum temperature) | ||
| eSTS_ERR_MAX | Maximum temperature error (rlt is maximum temperature) | ||
| eSTS_ERR_HAL_ADC | HAL ADC Error | ||
| eSTS_ERR_OTHERS_RUN | Other components are executing the process | ||
| eSTS_ERR_HAL_OTHERS_RUN | Other application is running HAL | ||
| eSTS_ERR_ADC_OBJECT | AD conversion object selection error | ||
| Parameter OUT | float32* rlt | Temperature ±0.0 to +100.0 [°C] |
Function Correspondence Table by HAL
| Arduino | Arduino | X | |
| ARM | Mbed | X | |
| Infineon | ModusToolbox | X | |
| NXP | MCUXpresso MXRT1051B_1052B | X | |
| Renesas | SSP | X | |
| STM | STM32Cube FW_F4 | X | Time-out time HAL_MAX_DELAY |
Files
| Folder* | File | Summary |
|---|---|---|
| AD22100K_HALNAME_VERSION/sample | sample.c (.cpp) | Sample Application Program |
| sample.h | Sample Application Header | |
| AD22100K_HALNAME_VERSION | oAD22100K.c (.cpp) | OSS-ECAL Program for AD22100K |
| oAD22100K.h | OSS-ECAL Header for AD22100K | |
| AD22100K_ARDUINO.ino | Sample application programs for Arduino | |
| oss_ecal.h | OSS-ECAL Common Header (Ver 01.00.00 or later) | |
| user_setting.c (.cpp) | Const and Table of User setting | |
| user_setting.h | Header of User setting | |
| readme.md | Readme | |
| OSS-ECAL Terms of Use.txt | OSS-ECAL Terms of Use |
* For HALNAME, please refer to HAL Support.
HAL Support List
| MCU/Board manufacturer | HAL | MCU* | Development environment* | HALNAME |
|---|---|---|---|---|
| Arduino | Arduino 1.8.6 | ATmega2560 ATmega328P | Mega 2560 Rev3 Arduino Pro Mini 3.3V | ARDUINO |
| ARM | Mbed 6.17.0 | STM32F401RE | STM32 Nucleo-64 boards | MBED |
| Infineon | ModusToolbox HAL Cat1 2.4.3 | CYBLE-416045-02 | CY8CPROTO-063-BLE PSoC 6 BLE Prototyping Kit | ModusToolbox |
| NXP | MCUXpresso SDK iMXRT1051B_1052B ksdk2_0 | MIMXRT1052DVL6A | IMXRT1050-EVKB | iMXRT1051B1052B |
| Renesas | SSP 2.4.0 | R7FS7G27H3A01CFC | S7G2 SK | SSP |
| STM | STM32Cube FW_F4 V1.27.1 | STM32F401RE | STM32 Nucleo-64 boards | STM32F4 |
* MCU and development environment at the time of development. Even if the same HAL is used, different MCUs and development environments may not work together.
OSS-ECAL Download
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This OSS-ECAL is a sample version and can be downloaded without user registration, but please accept the OSS-ECAL Terms of Use before downloading.
| HAL | Download OSS-ECAL Ver |
|---|---|
| Arduino 1.8.6 | |
| Mbed 6.17.0 | |
| ModusToolbox HAL Cat1 2.4.3 | |
| MCUXpresso SDK iMXRT1051B_1052B ksdk2_0 | |
| SSP 2.4.0 | |
| STM32Cube FW_F4 V1.27.1 |
If you are unable to download the File, please contact us and let us know the model number and HAL type. We will send you the file as an email attachment.
Built-in How to
How to incorporate OSS-ECAL into user programs
How to incorporate multiple OSS-ECALs in a user program (same MCU function)
How to incorporate multiple OSS-ECALs in a user program (different MCU function)
How to incorporate multiple identical electronic components into a user program
How to reduce the impact on user programs by replacing electronic components