Model 4200A-SCS Parameter Analyzer Reference Manual Section 4: Multi-frequency capacitance-voltage unit4200A-901-01 Rev. C / February 2017 4-3Test signalThe test signal can be set for the following frequencies:• 1 kHz to 10 kHz in 1 kHz increments• 10 kHz to 100 kHz in 10 kHz increments• 100 kHz to 1 MHz in 100 kHz increments• 1 MHz to 10 MHz in 1 MHz incrementsThe AC signal output level can be set from 10 mV RMS to 100 mVRMS (1 mVRMS resolution). The outputimpedance is 100 Ω (typical). The AC voltage measure range is 100 mVRMS .The ranges available to measure current are 1 μA, 30 μA, or 1 mA. With autorange selected, rangeselection is done automatically.DC bias function and sweep characteristicsThe AC test signal can be biased with a static DC level (−30 V to +30 V), or a voltage sweep (up ordown). You can also perform a frequency sweep (up or down).The next figure shows an example of DC bias waveform. In this example, the DC bias is set to 0 V,but you can set it to any valid DC bias level. You specify the number of measurements to make.Figure 77: DC Bias waveform (example)The next figure shows an example of DC voltage sweep. You specify the start voltage, stop voltage,and step voltage. The number of measure points is calculated by the 4210-CVU.Figure 78: DC voltage sweep (example)
