Datasheet

Data Sheet AD7927
Rev. D | Page 11 of 28
INPUT FREQUENCY (kHz)
–
55
THD (dB)
–70
–80
–90
–95
–60
–75
–85
–65
10 100
R
IN
= 1000Ω
R
IN
= 100Ω
R
IN
= 10Ω
R
IN
= 50Ω
03088-008
f
SAMPLE
= 200kSPS
T
A
= 25°C
AV
DD
= 5.25V
RANGE = 0 TO REF
IN
Figure 8. THD vs. Analog Input Frequency for Various Source Impedances
CODE
1.0
0 4096
INL ERROR (LSB)
0
–0.4
–0.8
–1.0
0.2
–0.2
–0.6
2048
0.6
0.4
0.8
2560 3072 3584512 1024 1536
AV
DD
=V
DRIVE
= 5V
T
A
= 25°C
03088-009
Figure 9. Typical INL
CODE
1.0
0 4096
DNL E
R
R
OR (LSB)
0
–0.4
–0.8
–1.0
0.2
–0.2
–0.6
2048
0.6
0.4
0.8
2560 3072 3584512 1024 1536
AV
DD
=V
DRIVE
= 5V
T
A
= 25°C
03088-010
Figure 10. Typical DNL