
Data Sheet
AD7329
Rev. B | Page 11 of 40
TYPICAL PERFORMANCE CHARACTERISTICS
0
–140
0
500
FREQUENCY (kHz)
S
NR
(
d
B)
–20
–40
–60
–80
–100
–120
50
100
150
200
250
300
350
400
450
4096 POINT FFT
VCC = VDRIVE = 5V
VDD = 15V, VSS = –15V
TA = 25°C
INT/EXT 2.5V REFERENCE
±10V RANGE
fIN = 50kHz
SNR = 77.30dB
SINAD = 76.85dB
THD = –86.96dB
SFDR = –88.22dB
0540
2-
0
04
Figure 4. FFT for True Differential Mode
0
–140
0
500
FREQUENCY (kHz)
S
NR
(
d
B)
–20
–40
–60
–80
–100
–120
50
100
150
200
250
300
350
400
450
4096 POINT FFT
VCC = VDRIVE = 5V
VDD = 15V, VSS = –15V
TA = 25°C
INT/EXT 2.5V REFERENCE
±10V RANGE
fIN = 50kHz
SNR = 74.67dB
SINAD = 74.03dB
THD = –82.68dB
SFDR = –85.40dB
0540
2-
0
05
Figure 5. FFT for Single-Ended Mode
1.0
–1.0
0
8192
CODE
DNL
E
RRO
R
(
L
S
B)
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
1024
2048
3072
4096
5120
6144
7168
512
1536
2560
3584
4608
5632
6656
7680
VCC = VDRIVE = 5V
TA = 25°C
VDD = 15V, VSS = –15V
INT/EXT 2.5V REFERENCE
±10V RANGE
+DNL = +0.72LSB
–DNL = –0.22LSB
05402-
006
Figure 6. Typical DNL for True Differential Mode
1.0
–1.0
0
8192
CODE
IN
L
E
R
O
R
(LS
B
)
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
1024
2048
3072
4096
5120
6144
7168
512
1536
2560
3584
4608
5632
6656
7680
VCC = VDRIVE = 5V
TA = 25°C
VDD = 15V, VSS = –15V
INT/EXT 2.5V REFERENCE
±10V RANGE
+INL = +0.55LSB
–INL = –0.68LSB
0540
2-
00
7
Figure 7. Typical INL for True Differential Mode
1.0
–1.0
0
8192
CODE
DN
L
E
R
RO
R
(
L
S
B
)
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
1024
2048
3072
4096
5120
6144
7168
512
1536
2560
3584
4608
5632
6656
7680
VCC = VDRIVE = 5V
TA = 25°C
VDD = 15V, VSS = –15V
INT/EXT 2.5V REFERENCE
±10V RANGE
+DNL = +0.79LSB
–DNL = –0.38LSB
05402-
008
Figure 8. Typical DNL for Single-Ended Mode
1.0
–1.0
0
8192
CODE
INL
E
R
RO
R
(
L
S
B
)
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
1024
2048
3072
4096
5120
6144
7168
512
1536
2560
3584
4608
5632
6656
7680
VCC = VDRIVE = 5V
TA = 25°C
VDD = 15V, VSS = –15V
INT/EXT 2.5V REFERENCE
±10V RANGE
+INL = +0.87LSB
–INL = –0.49LSB
05402-
009
Figure 9. Typical INL for Single-Ended Mode