An Accurate and Fast Method for Improving ADC Nonlinearity

Table 2

Proposed method performance versus KF with a sampling frequency of 1 MHz with 0.01 error rate.

(Sampling frequency 1 MHz; error rate 0.01)
Sawtooth						Sine wave
Kalman filter [19, 20]				Proposed algorithm		Kalman filter		Proposed algorithm
Parameters		ENOB	SNR	ENOB	SNR	ENOB	SNR	ENOB	SNR
Q	50	6	37.9	9.4	58.6	9.2	57.3	9.55	59.2
R	15
Q	50	7.2	45.3	9.4	58.6	9.5	59	9.5	59.2
R	5
Q	90	9.3	39.8	6.4	58.6	9.3	58	9.5	59.2
R	20