AD7150
Rev. 0 | Page 7 of 28
25020015010050
OFFSET ERROR (fF)
CAPACITANCE CIN TO GND (pF)
TYPICAL PERFORMANCE CHARACTERISTICS
300
200
100
0
–100
03
00
06517-004
25020015010050
GAIN ERROR (%FS)
CAPACITANCE CIN TO GND (pF)
Figure 4. Capacitance Input Offset Error vs. Capacitance CIN to GND,
V
DD
= 3.3 V, EXC Pin Open Circuit
2
–8
–6
–4
–2
0
03
00
06517-005
25020015010050
GAIN ERROR (%FS)
CAPACITANCE CIN TO GND (pF)
Figure 5. Capacitance Input Gain Error vs. Capacitance CIN to GND,
V
DD
= 3.3 V, CIN to EXC = 2 pF
2
–8
–6
–4
–2
0
03
00
06517-006
2
–2
–1
0
1
030025020015010050
OFFSET ERROR (fF)
CAPACITANCE EXC TO GND (pF)
06517-007
0.10
–0.10
–0.05
0
0.05
030025020015010050
GAIN ERROR (%FS)
CAPACITANCE EXC TO GND (pF)
Figure 6 .Capacitance Input Gain Error vs. Capacitance CIN to GND,
V
DD
= 3.3 V, CIN to EXC = 10 pF
Figure 7. Capacitance Input Offset Error vs. Capacitance EXC to GND,
V
DD
= 3.3 V, CIN Pin Open Circuit
06517-008
0.10
–0.10
–0.05
0
0.05
030025020015010050
GAIN ERROR (%FS)
CAPACITANCE EXC TO GND (pF)
Figure 8. Capacitance Input Gain Error vs. Capacitance EXC to GND,
V
DD
= 3.3 V, CIN to EXC = 2 pF
06517-009
Figure 9. Capacitance Input Gain Error vs. Capacitance EXC to GND,
V
DD
= 3.3 V, CIN to EXC = 10 pF