Datasheet

AD7323 Data Sheet
Rev. B | Page 10 of 36
TYPICAL PERFORMANCE CHARACTERISTICS
0
–140
0
FREQUENCY (kHz)
SNR (dB)
–20
–40
–60
–80
–100
–120
50
100
150 200
250
4096 POINT FFT
V
CC
= V
DRIVE
= 5V
V
DD
, V
SS
= ±15V
T
A
= 25°C
INT/EXT 2.5V REFERENCE
±10V RANGE
f
IN
= 50kHz
SNR = 77.30dB
SINAD = 76.85dB
THD = –86.96dB
SFDR = –88.22dB
05400-004
Figure 4. FFT True Differential Mode
0
–140
0
FREQUENC
Y
(kHz)
SNR (dB)
–20
–40
–60
–80
–100
–120
50
100 150 200
250
4096 POINT FFT
V
CC
= V
DRIVE
= 5V
V
DD
, V
SS
= ±15V
T
A
= 25°C
INT/EXT 2.5V REFERENCE
±10V RANGE
f
IN
= 50kHz
SNR = 74.67dB
SINAD = 74.03dB
THD = –82.68dB
SFDR = –85.40dB
05400-005
Figure 5. FFT Single-Ended Mode
1.0
–1.
0
0
8192
CO
DE
DNL ERROR (LSB)
0.8
0
.6
0.4
0.2
0
–0.2
–0.4
–0.
6
–0.8
1024 2048 3072 409
6 5120 6144 7168
512 153
6 2560 3584 4608 5632
6656 7680
V
CC
=
V
DRIVE
=
5V
T
A
= 25°
C
V
DD
, V
SS
= ±15V
INT/
EXT 2.5V REFERE
NCE
±10V RANGE
+DNL = +0.72LSB
–DNL = –0.22LSB
05400-006
Figure 6. Typical DNL True Differential Mode
1.
0
–1
.0
0
8192
C
OD
E
INL ERROR (LSB)
0
.8
0
.6
0.
4
0.
2
0
–0.2
–0
.
4
–0
.6
–0.
8
102
4 204
8 307
2
4096 5120 6144 7168
51
2 153
6 256
0
3584
4608
563
2 665
6
7680
V
C
C
=
V
DRI
V
E
= 5
V
T
A
=
25
°C
V
DD
, V
SS
= ±
15
V
IN
T
/EX
T
2.
5V
R
EF
ER
E
NCE
±
10
V RAN
GE
+I
N
L =
+0
.
55L
SB
–INL = –0.68LSB
05400-007
Figure 7. Typical INL True Differential Mode
1.0
–1.0
0
8192
CO
DE
DNL ERROR (LSB)
0.8
0
.6
0.4
0.
2
0
–0.2
–0.4
–0.
6
–0.8
1024 2048 3072 4096 512
0 6144
7168
512 1536
2560 358
4 4608 5632 6656 7680
V
C
C
= V
DRI
VE
= 5V
T
A
= 25°C
V
DD
, V
SS
= ±15V
I
NT/
EXT 2
.5V
REFERENCE
±
10V RANG
E
+D
NL =
+0.
79LSB
–DNL
= –0.
38LSB
05400-043
Figure 8. Typical DNL Single-Ended Mode
1.0
–1.0
0
8192
CODE
INL ERROR (LSB)
0.8
0
.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
1024
2048 3072 4096 5120 614
4 7168
512 1536 2560 3584 4608
5632 6656 7680
V
C
C
= V
DRIV
E
= 5V
T
A
= 25°
C
V
DD
, V
SS
= ±
15V
INT/EXT 2.5V R
EFERENCE
±
10V RANGE
+INL = +0.87
LSB
–INL
= –0.49LSB
05400-044
Figure 9. Typical INL Single-Ended Mode