AD7988-1BCPZ-RL 查看數據表（PDF） - Analog Devices
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AD7988-1BCPZ-RL Datasheet PDF : 24 Pages
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AD7988-1/AD7988-5
TYPICAL PERFORMANCE CHARACTERISTICS
VDD = 2.5 V, VREF = 5.0 V, VIO = 3.3 V, unless otherwise noted.
0
fS = 500kSPS
–20
fIN = 10kHz
SNR = 91.17dB
–40
THD = –113.63dB
SFDR = 110.30dB
SINAD = 91.15dB
–60
–80
–100
–120
–140
–160
–180
0
50
100
150
200
250
FREQUENCY (kHz)
Figure 6. AD7988-5 FFT Plot, VREF = 5 V
0
fS = 500kSPS
–20
fIN = 10kHz
SNR = 86.8dB
–40
THD = –111.4dB
SFDR = 105.9dB
SINAD = 86.8dB
–60
–80
–100
–120
–140
–160
–180
0
50
100
150
200
250
FREQUENCY (kHz)
Figure 7. AD7988-5 FFT Plot, VREF = 2.5 V
0
–20
–40
–60
–80
–100
–120
–140
–160
–180
0
fS = 100kSPS
fIN = 10kHz
SNR = 91.09dB
THD = –113.12dB
SFDR = 110.30dB
SINAD = 91.05dB
10
20
30
40
50
FREQUENCY (kHz)
Figure 8. AD7988-1 FFT Plot, VREF = 5 V
Data Sheet
0
fS = 100kSPS
–20
fIN = 10kHz
SNR = 86.7dB
–40
THD = –110.4dB
SFDR = 103.9dB
SINAD = 86.6dB
–60
–80
–100
–120
–140
–160
–180
0
10
20
30
40
50
FREQUENCY (kHz)
Figure 9. AD7988-1 FFT Plot, VREF = 2.5 V
1.25
POSITIVE INL: +0.40 LSB
1.00
NEGATIVE INL: –0.35 LSB
0.75
0.50
0.25
0
–0.25
–0.50
–0.75
–1.00
–1.25
0
16384
32768
49152
65536
CODE
Figure 10. Integral Nonlinearity vs. Code, VREF = 5 V
1.25
POSITIVE INL: +0.45 LSB
1.00
NEGATIVE INL: –0.29 LSB
0.75
0.50
0.25
0
–0.25
–0.50
–0.75
–1.00
–1.25
0
16384
32768
49152
65536
CODE
Figure 11. Integral Nonlinearity vs. Code, VREF = 2.5 V
Rev. B | Page 10 of 24
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