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Measuring Zo in TINA SPICE. Tim Green Precision Linear Analog Applications January 2, 2014. OPA735 Reference Buffer. L1 is short at DC and allows SPICE to find the proper DC Operating point – necessary before AC Analysis. C1 is open at DC but Short at AC for any frequency of interest.
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Measuring Zo in TINA SPICE Tim Green Precision Linear Analog Applications January 2, 2014
OPA735 Reference Buffer L1 is short at DC and allows SPICE to find the proper DC Operating point – necessary before AC Analysis. C1 is open at DC but Short at AC for any frequency of interest. IG1 is AC Current Generator with 0A for DC Current. For AC Analysis VF1 will be Zo(dB). Change dB scale to Logarithmic for Zo(ohms)