2
1
0
–1
–2
–50
–25
0
25
50
TEMPERATURE (°C)
75
100
Figure 16. EXC Frequency Error vs. Temperature,
VDD = 3.3 V
2
1
0
–1
–2
2.7
3.0
3.3
3.6
VDD (V)
Figure 17. EXC Frequency Error vs. VDD
AD7151
0
–20
–40
–60
–80
0
0.5
1.0
1.5
2.0
2.5
INPUT SIGNAL FREQUENCY (kHz)
Figure 18. Capacitance to Digital Converter Frequency Response
0.50
0.25
0
–0.25
–0.50
0
16
32
48
64
CAPDAC CODE
Figure 19. CAPDAC Differential Nonlinearity (DNL),
VDD = 3.3 V
Rev. 0 | Page 9 of 28