Datasheet

AD7150
Rev. 0 | Page 9 of 28
4
–4
–2
0
2
–50 1007550250–25
OFFSET ERROR (fF)
TEMPERATURE (°C)
06517-016
Figure 16. Capacitance Input Offset Error vs. Temperature,
V
DD
= 3.3 V, CIN and EXC Pins Open Circuit
0.2
–0.2
–0.1
0
0.1
–50 1007550250–25
GAIN ERROR (%FS)
TEMPERATURE (°C)
06517-017
Figure 17. Capacitance Input Gain Error vs. Temperature,
V
DD
= 3.3 V, CIN to EXC = 2 pF
2
–2
–1
0
1
–50 1007550250–25
EXC FREQUENCY ERROR (%)
TEMPERATURE (°C)
06517-018
Figure 18. EXC Frequency Error vs. Temperature,
V
DD
= 3.3 V
2
–2
–1
0
1
2.7 3.63.33.0
EXC FREQUENCY ERROR (%)
V
DD
(V)
06517-019
Figure 19. EXC Frequency Error vs. V
DD
0
–80
–60
–40
–20
054321
GAIN (dB)
INPUT SIGNAL FREQUENCY (kHz)
06517-020
Figure 20. Capacitance Channel Frequency Response
0.50
–0.50
–0.25
0
0.25
06483216
CAPDAC DNL (LSB)
CAPDAC CODE
4
06517-021
Figure 21. CAPDAC Differential Nonlinearity (DNL),
V
DD
= 3.3 V