ADC Production Test Technique Using Low-Resolution Arbitrary Waveform Generator

Table 7

THD estimation accuracy versus AWG resolution.

	AWG resolution	THD reference (dB)	THD estimation (dB)	Measurement difference (dB)
ADC#1	12	−61.8	−61.7	−0.1
	10	−61.8	−62.0	0.2
	8	−61.8	−62.4	0.6
	6	−61.8	−61.7	−0.1
ADC#2	12	−59.8	−59.1	−0.7
	10	−59.8	−58.8	−1.0
	8	−59.8	−58.9	−0.9
	6	−59.8	−59.1	−0.8