Purpose[edit]
Measure the slew rate of an opamp
Description[edit]
Run the tran simulation in Spectre and read results. With an assumption that the output step response first demonstrates the slewing phenomenon (i.e. linear response) and then the forced response (i.e. exponential curve), this script estimates the linear slope of the output voltage with the eval_diff() function of the waveform class.
Outputs[edit]
Result Name |
Result Type |
Description |
Unit |
slew_rate |
performance |
slew rate |
V/us |
sw_tag |
slew_rate |
TTTT |
487.0 |
-- seobin 2013-02-25 05:53:18
Plots[edit]
Graph Name |
Filename |
Description |
step_response |
opamp_step.png |
Step response of vout with slewing |
step_response: Step response of vout with slewing[edit]
![[ATTACH]](/wiki/Projects%20Home/ISRC_winter_2013/day2/opamp/tran.py?rename=opamp_step.png&action=AttachFile "[ATTACH]"){kind=small}
-- seobin 2013-02-25 05:53:18