AS1536/AS1537
Datasheet - Typical Operating Characteristics
7 Typical Operating Characteristics
VDD = 3.0V, VREF = 2.5V, fSCLK = 2.1MHz, CLOAD = 50pF, TAMB = +25ºC (unless otherwise specified).
Figure 5. Integral Nonlinearity vs. Digital Output Code
Figure 6. Differential Nonlinearity vs. Digital Output Code
1
0.8
0.6
0.4
0.2
0
1
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
1024
2048
3072
4096
0
1024
2048
3072
4096
Digital Output Code
Digital Output Code
Figure 7. FFT @ 1kHz
Figure 8. FFT @ 10kHz
0
0
Fsample = 75ksps
NFFT = 16384
Fsample = 75ksps
NFFT = 16384
-20
-40
-20
-40
-60
-60
-80
-80
-100
-120
-140
-160
-100
-120
-140
-160
0
5
10 15 20 25 30 35 40
0
5
10 15 20 25 30 35 40
Input Signal Frequency (kHz)
Input Signal Frequency (kHz)
Figure 9. ENOB vs. VREF
Figure 10. ENOB vs. Input Signal Frequency
11.75
11.62
11.65
11.55
11.45
11.35
11.25
11.15
11.05
11.57
11.52
11.47
11.42
1.3
2.3
3.3
4.3
5.3
0
10
20
30
40
Reference Voltage (V)
Frequency (kHz)
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