AD7091R-5BRUZ-RL7(Rev0) 查看數據表（PDF） - Analog Devices
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AD7091R-5BRUZ-RL7
(Rev.:Rev0)
(Rev.:Rev0)
Analog Devices
AD7091R-5BRUZ-RL7 Datasheet PDF : 35 Pages
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AD7091R-5
0
–20
–40
–60
–80
–100
–120
–140
–160
0
VDD = VDRIVE = 3.3V
VREF = 2.5V EXTERNAL
TA = 25°C
fIN = 1kHz
fSAMPLE = 22.2kSPS
fSCL = 400kHz
SNR = 68.3dB
SINAD = 68.2dB
THD = –85.3dB
SFDR = –88.2dB
2000
4000
6000
8000
FREQUENCY (Hz)
10000
Figure 11. 10 kHz FFT, VDD = 3.0 V, VREF = 2.5 V External
0
VDD = VDRIVE = 3.3V
–20
VREF = 2.5V INTERNAL
fIN = 1kHz
fSAMPLE = 22.2kSPS
–40
fSCL = 400kHz
SNR = 68.4dB
SINAD = 68.2dB
–60
THD = –83.3dB
SFDR = –87.9dB
–80
–100
–120
–140
–160
0
2000
4000
6000
8000
FREQUENCY (Hz)
10000
Figure 12. 10 kHz FFT, VDD = 3.0 V, VREF = 2.5 V Internal
70
SNR
SINAD
69
68
67
66
VDD = 3.3V
65
VREF = 2.5V
SIGNAL AMPLITUDE = –0.5dB
fSCL = 400kHz
TA = 25°C
64
1
10
100
INPUT FREQUENCY (kHz)
Figure 13. SNR, SINAD vs. Input Frequency
Data Sheet
71
70
69
68
67
66
65
64
63
62
1.0
11.7
SNR
SINAD
ENOB
11.5
11.3
11.1
10.9
10.7
10.5
VDD = 3.0V
VREF = EXTERNAL
fSCL = 400kHz
10.3
fIN = 1kHz
SIGNAL AMPLITUDE = –0.5dB
10.1
TA = 25°C
9.9
1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
REFERENCE INPUT VOLTAGE (V)
Figure 14. SNR, SINAD, and ENOB vs. Reference Input Voltage
–70
VDD = 3.3V
–72 VREF = 2.5V
SIGNAL AMPLITUDE = –0.5dB
–74 fSCL = 400kHz
TA = 25°C
–76
–78
–80
–82
–84
–86
–88
–90
1
10
100
ANALOG INPUT FREQUENCY (kHz)
Figure 15. THD vs. Analog Input Frequency
70.0
69.5
69.0
68.5
68.0
67.5
67.0 VDD = 3.0V
VREF = 2.5V
66.5 fSCL = 400kHz
fIN = 1kHz
TA = 25°C
66.0
–10 –9 –8 –7 –6 –5 –4 –3 –2 –1 0
INPUT LEVEL (dB)
Figure 16. SNR vs. Input Level
Rev. 0 | Page 10 of 34
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