I am using AD7908 in one of our designs. I am providing 5V at AVDD input ( Pin-5,6) and 3.3V at VDRIVE input (Pin-19). Please refer below picture. I have 24V-5V power supply and 5V-3.3V power supply on my board.
When i turned off 3.3V power supply…
I use the AD7908 and the current sensor IC "MAX4073T" without any OP between current sensor output and Vin of AD7908.
In some case, the output of current sensor will be 0.4V, but there is a 3.6V rising due to the reverse current of ADC…
For the conversion output of the AD7908, the value at full scale input fluctuates.The AD value changes according to the voltage of the previous channel.Measured at 5 V full scale.Condition 1 VIN 1 = 5 V, VIN 2 = 5 V AD value 255Condition 2 VIN…
I moved this question about the AD7908 to the Precision ADCs community. Someone there should be able to help.
EngineerZone Community Manager
I have attached some list of ADC that were Automotive Qualified. Do you have specific paramater that you are looking for an ADC? like Throughput rate, no. of channels, or Resolution.
You can also visit the Analog Devices website and filter…
I'm trying to get the bf526 to talk to the AD7908 over SPI. It looks like I need CPOL = 1 and CPHA = 0, but when I choose this setting my select line stops going low when I'm trying to do a write. The 526 manual says that when CPHA = 0, the SPI…