AS1530/AS1531
Data Sheet - Typical Operating Characteristics
7 Typical Operating Characteristics
Same conditions as stated in Electrical Characteristics on page 5.
Figure 5. INL vs. Digital Output Code
Figure 6. DNL vs. Digital Output Code
1
1
0.8
0.6
0.4
0.2
0
0.8
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
-1
-0.2
-0.4
-0.6
-0.8
-1
0
1000
2000
3000
4000
0
1000
2000
3000
4000
Digital Output Code
Digital Output Code
Figure 7. FFT @ 10kHz; RANGE = 1, MODE = 1
Figure 8. FFT @ 75kHz; RANGE = 0, MODE = 1
20
20
FSample = 312.5ksps
NFFT = 16384
FSample = 312.5ksps
NFFT = 16384
0
0
-20
-40
-20
-40
-60
-60
-80
-80
-100
-120
-140
-160
-180
-100
-120
-140
-160
-180
0
20 40 60 80 100 120 140 160
Input Signal Frequency (kHz)
0
20 40 60 80 100 120 140 160
Input Signal Frequency (kHz)
Figure 9. ENOB vs. VREF; 1st Order 300kHz
Low Pass Filter
Figure 10. ENOB vs. Input Signal Frequency; 1st
Order 1MHz Low Pass Filter
11.6
11.5
11.45
11.4
AS1531: fsig = 75kHz
11.4
AS1530: fsig = 100kHz
11.35
11.3
11.2
11
11.25
11.2
11.15
11.1
10.8
10.6
11.05
1
2
3
4
5
0
50 100 150 200 250 300 350
Frequency (kHz)
Voltage (V)
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