SPT7851SIT データシートの表示（PDF） - Signal Processing Technologies
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SPT7851SIT Datasheet PDF : 8 Pages
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TYPICAL PERFORMANCE CHARACTERISTICS
THD, SNR, SINAD vs Input Frequency
80
THD, SNR, SINAD vs Sample Rate
80
70
70
THD
THD
60
THD
SNR
60
SNR
SINAD
SINAD
50
SNR
50
SINAD
40
40
30
20
100
101
Input Frequency (MHz)
30
20
102
10 0
101
102
Sample Rate (MSPS)
Note: Bias1 and Bias2 currents optimized for each sample rate.
THD, SNR, SINAD vs Temperature
70
Power Dissipation vs Sample Rate
150
68
125
THD
66
100
64
75
62
50
60
SNR
25
58
SINAD
0
56
–40
–25
0
25
50
70
85
10 0
101
102
Temperature (°C)
Sample Rate (MSPS)
Note: Bias1 and Bias2 optimized for each sample rate.
Bias 1 Voltage vs Bias 1 Current
3.4
3.2
3.0
2.8
Bias 1 VBias 1
2.6
30
2.19
60
2.53
2.4
90
2.79
120
3
150
3.22
2.2
2.0
0
30
60
90
120
150
180
IBias1 (µA)
Bias 2 Voltage vs Bias 2 Current
0.90
0.85
0.80
IBias 2 VBias 2
0.75
3
0.6975
6
0.7535
9
0.796
0.70
12
0.8295
15
0.8595
0.65
0.60
0
3
6
9
12
15
18
IBias 2 (µA)
SPT
4
SPT7851
8/1/00
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