## Electronic Circuit Design Tools

Beyond the pad and pencil, a tool was needed to learn, explore, verify, document and share circuit designs! Excel was a good choice, not only because it's widelly used, but for its capability. Many topics stretched both my engineering knowledge and Excel skills.

• Play with the input values.

• Discover the effect on the output.

• Expand or customize the file for your own designs.

Op Amps | ||

Calculate gains and voltages of basic Inverting and Non-Inverting amplifier configs. |
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Calculate positive and negative voltage gains and output voltage. |
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Convert input current to an output voltage (trans-impedance amp) with offset voltage. |
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Given amplifier gain and Unity Gain Frequency, find the signal bandwidth and settling time to any percent. |
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Find op amp output errors due to Input Offset Voltage, both initial and temperture drift errors. |
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Fnd op amp output errors due to Input Bias Current, both initial and temperture drift errors. |
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Filters and Networks |
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Calculate the 1st order magnitude and phase (single pole) of an RC Low Pass Filter on a log frequency scale. |
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Calculate the 2nd order response (complex conjugate pair of poles) of an RLC LP Fiter. |
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Noise |
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What is noise density vs. frequency and Vout (RMS) given a voltage noise source (white) with amplifer (K) of bandwidth (fc)? |
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Signals |
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Create waveforms by entering Fourier Series coefficients (VBA code) |
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General |
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Convert a ratio to decibels. |