Hi,
I am trying to use ADS1234 to measure the output of a load cell.currently an avr uc is used to read data from the ADS and send it it PC. I attached the schematic and PCB.
i shorted AINP3 and AINN3 and connected to voltage Vref/2 Volt by means of Voltage divider and i am getting 0x8FFFFF to 0x7FFFFF fluctuating output in decimal.
1)when i connect AINP3 - AINN3 to load cell i am getting fluctuating from 0x8FFFFF to 0x9FFFFF reading and i connected a poly 100nf differential capacitor between AINP3 - AINN3. So may l know the the problem with me?
The following hardware setup is used
DVDD-5V
AVDD-5V
REFP-5V
REFN-0
SPEED-0
GAIN-128
I/p Voltage=12V
Many Thanks
Shahul