Hi,
Does the ADT7420 have timeout function?
If the master CPU power off when ADT7420 output the data, does the ADT7420 open the I2C bus?
We have a strange behavior with different ADT7420-Sensors. We had 4 Sensors on a i2c-bus and everything works fine at roomtemperature. We can make good measurements. We can switch off and on the powersupply and everything works as expected.
If we increase…
I now use the ADT7420 for human skin temperature measurement, we checked the peripheral circuits, software etc. At room temperature (20~40 degrees), through the air contact, we compared the ADT7420 temperature and mercury thermometer had little difference…
Hello Tal,
From your statement 4 above, I would conclude that the ADT7420 is working fine and measuring the PCB temperature rather than the air temperature. This is a common issue. Is the ADT7420 located close to another component that is generating…
The ADT7420 has two address lines to allow us to set the address of the ADT7420 temp sensor. There is a similar situation with the current/power monitor ADM1176 chip.
Was wondering if there was a different part which would also say 32 (5 address lines…
I’m thinking of trying the ADT7420 as an alternative to the ADT7410 in a current design. The datasheet for the ADT7420 specifies a minimum temperature of -40 degrees Celsius. Does anyone know if this the lowest reportable temperature? I.e. will the ADT7420…
I am using MSP430FR5949 (master Mode) to control the ADT7420. However, ADT7420 sent back a not acknowledge bit to master after the serial bus address byte was transmitted.
I cannot read or write anything to IC ADT7420. The master just repeated…
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