AD7276/AD7277/AD7278
–50
–55
–60
RIN = 100Ω
–65
–70
–75
RIN = 10Ω
–80
–85
RIN = 0Ω
–90
100
INPUT FREQUENCY (kHz)
1000 1500
Figure 16. THD vs. Analog Input Frequency at 3 MSPS for Various Source
Impedances, SCLK Frequency = 48 MHz, Supply Voltage = 3 V
1.0
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
0
VDD = 3V
500 1000 1500 2000 2500 3000 3500 4000
CODE
Figure 17. AD7276 INL Performance
1.0
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
0
VDD = 3V
500 1000 1500 2000 2500 3000 3500 4000
CODE
Figure 18. AD7276 DNL Performance
Rev. C | Page 14 of 28