Below is my circuit
Where the -10V is actually -12V
the ouput is connect to an OPAMP
I use 2MHz SPI to operate it. Update frequency is 50KHz.
The register setting is
Write_DAC_reg(0x55,0x1092);
That is :
OUTEN = 1;
SRCLK = 0; eg .250KHz Slew rate clock
SRSTEP = 4; eg. Slew Rate Step-Size 16
Slew Rate Enable.
OUTPUT RANGE ±5 V
Other registers use default values.
After several minites of operation, the DAC8760 will become very hot and then stop operation. I am wondering any error in my circuit or code. I have tried by removing C36 and C37 with no improvement.
Please help!