Datasheet

AD7327
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
05401-004
Figure 4. FFT True Differential Mode
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 = 74.67dB
SINAD = 74.03dB
THD = –82.68dB
SFDR = –85.40dB
0
5401-005
Figure 5. FFT Single-Ended Mode
1.0
–1.0
08192
CODE
DNL ERROR (LSB)
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
V
CC
=V
DRIVE
=5V
T
A
= 25°C
V
DD
,V
SS
= ±15V
INT/EXT 2.5V REFERENCE
±10V RANGE
+DNL = +0.72LSB
–DNL = –0.22LSB
05401-006
Figure 6. Typical DNL True Differential Mode
1.0
–1.0
08192
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 6144 7168
512 1536 2560 3584 4608 5632 6656 7680
05401-007
V
CC
=V
DRIVE
=5V
T
A
= 25°C
V
DD
,V
SS
= ±15V
INT/EXT 2.5V REFERENCE
±10V RANGE
+INL = +0.55LSB
–INL = –0.68LSB
Figure 7. Typical INL True Differential Mode
1.0
–1.0
08192
CODE
DNL ERROR (LSB)
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
V
CC
=V
DRIVE
=5V
T
A
=25°C
V
DD
,V
SS
= ±15V
INT/EXT 2.5V REFERENCE
±10V RANGE
+DNL = +0.79LSB
–DNL = –0.38LSB
05401-043
Figure 8. Typical DNL Single-Ended Mode
1.0
–1.0
08192
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 6144 7168
512 1536 2560 3584 4608 5632 6656 7680
V
CC
=V
DRIVE
=5V
T
A
= 25°C
V
DD
,V
SS
=±15V
INT/EXT 2.5V REFERENCE
±10V RANGE
+INL = +0.87LSB
–INL = –0.49LSB
05401-044
Figure 9. Typical INL Single-Ended Mode