Principle of Noise Waveform Measurement
- Circuit structure: level shifter, latched comparator
- This circuit detects the noise using the principle of sampling oscilloscope.
On-chip Noise Test Circuit
On-chip noise detector
- Voltage probe: any posion on substrate, power supply, ground line
- Comparator: 6-ch
- Level shifter: 3.3V → 1.2V, 0V → 1.2V
- BW: about 1GHz
- DAC: 6-ch, 8-bit
