TYPICAL PERFORMANCE CHARACTERISTICS
THD, SNR, SINAD vs Input Frequency
80
THD, SNR, SINAD vs Sample Rate
80
70
70
THD
SNR
THD
SNR
SINAD
THD, SNR, SINAD (dB)
THD, SNR, SINAD (dB)
60
THD
SNR
SINAD
60
SINAD
50
50
40
40
30
30
20
100
20
Input Frequency (MHz)
101
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, SNR, SINAD (dB)
THD
66
Power Dissipation (mW)
100
64
SNR
62
75
SINAD
60
50
58
25
56
0
25
70
0
Temperature (°C)
10 0
101
102
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
0.90
Bias 2 Voltage vs Bias 2 Current
0.85
VBias1 (V)
0.80
VBias2 (V)
2.8
2.6
2.4
2.2
2.0
0
30
60
90
120
150
180
IBias1 VBias1
30
2.19
60
2.53
90
2.79
120
3.00
150
3.22
0.75
0.70
IBias2
3
6
9
12
15
VBias2
0.6975
0.7535
0.796
0.8295
0.8595
0.65
0.60
0
3
6
9
12
15
18
IBias1 (µA)
IBias2 (µA)
SPT7935
4
7/12/00
CADEKA [ CADEKA MICROCIRCUITS LLC. ]
