AS1538/AS1540
Data Sheet - Typical Operating Characteristics
Figure 16. Supply Current vs. Supply Voltage, PD=00
Figure 17. Supply Current vs. Supply Voltage, PD=01
300
1000
250
200
150
100
50
800
600
400
200
0
0
2.7
3.2
3.7
4.2
4.7
5.2
2.7
3.2
3.7
4.2
4.7
5.2
Supply Voltage (V)
Supply Voltage (V)
Figure 18. Supply Current vs. Supply Voltage, PD=11
Figure 19. Supply Current vs. Sampling Rate, PD = 11
1200
1000
1000
800
600
400
200
0
800
600
400
200
0
0
10
20
30
40
50
2.7
3.2
3.7
4.2
4.7
5.2
Sampling Rate (ksps)
Supply Voltage (V)
Figure 20. FFT, Int. Reference
Figure 21. FFT, Ext. Reference
0
0
f
= 50ksps
f
= 50ksps
SAMPLE
SAMPLE
NFFT = 32768
SNR=72.7dB
THD = -74.3dB
SFDR = 76.3dB
NFFT = 32768
SNR=72.7dB
THD = -74.7dB
SFDR = 76.5dB
-20
-40
-20
-40
-60
-60
-80
-80
-100
-120
-140
-160
-180
-100
-120
-140
-160
-180
0
5000 10000 15000 20000 25000
Input Signal Frequency(kHz)
0
5000 10000 15000 20000 25000
Input Signal Frequency(kHz)
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