npsnpsnps
Junior Member level 1
Hello,
I am designing a Switched Capacitor DAC in SAR ADC. I have used ideal switches in my DAC design. I simulated the DAC and got the correct output but when i integrated with other blocks to create the ADC and simulated, I am getting the below error. I have used the ideal comparator in my ADC.
Error
ERROR (SPECTRE-16384): Signal I(I8.I51:vout_flow) = -1.29358 GA exceeds the blowup limit for the quantity `I' which is (1 GA). It is likely that the circuit is unstable. If you really want signals this large, set the `blowup' parameter of this quantity to a larger value.
Analysis `tran' was terminated prematurely due to an error.
I8 is my DAC block and I51 is the Ideal switch used in DAC.
I am designing a Switched Capacitor DAC in SAR ADC. I have used ideal switches in my DAC design. I simulated the DAC and got the correct output but when i integrated with other blocks to create the ADC and simulated, I am getting the below error. I have used the ideal comparator in my ADC.
Error
ERROR (SPECTRE-16384): Signal I(I8.I51:vout_flow) = -1.29358 GA exceeds the blowup limit for the quantity `I' which is (1 GA). It is likely that the circuit is unstable. If you really want signals this large, set the `blowup' parameter of this quantity to a larger value.
Analysis `tran' was terminated prematurely due to an error.
I8 is my DAC block and I51 is the Ideal switch used in DAC.