TYPICAL PERFORMANCE CHARACTERISTICS
300
2
AD7150
200
1
100
0
0
–1
–100
0
50
100
150
200
250
300
CAPACITANCE CIN TO GND (pF)
Figure 4. Capacitance Input Offset Error vs. Capacitance CIN to GND,
VDD = 3.3 V, EXC Pin Open Circuit
2
0
–2
–4
–6
–8
0
50
100
150
200
250
300
CAPACITANCE CIN TO GND (pF)
Figure 5. Capacitance Input Gain Error vs. Capacitance CIN to GND,
VDD = 3.3 V, CIN to EXC = 2 pF
2
0
–2
–4
–6
–8
0
50
100
150
200
250
300
CAPACITANCE CIN TO GND (pF)
Figure 6 .Capacitance Input Gain Error vs. Capacitance CIN to GND,
VDD = 3.3 V, CIN to EXC = 10 pF
–2
0
50
100
150
200
250
300
CAPACITANCE EXC TO GND (pF)
Figure 7. Capacitance Input Offset Error vs. Capacitance EXC to GND,
VDD = 3.3 V, CIN Pin Open Circuit
0.10
0.05
0
–0.05
–0.10
0
50
100
150
200
250
300
CAPACITANCE EXC TO GND (pF)
Figure 8. Capacitance Input Gain Error vs. Capacitance EXC to GND,
VDD = 3.3 V, CIN to EXC = 2 pF
0.10
0.05
0
–0.05
–0.10
0
50
100
150
200
250
300
CAPACITANCE EXC TO GND (pF)
Figure 9. Capacitance Input Gain Error vs. Capacitance EXC to GND,
VDD = 3.3 V, CIN to EXC = 10 pF
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