RHF1401_12 Datasheet, PDF (19/42 Pages) STMicroelectronics – Rad-hard 14-bit 30 Msps A/D converter

RHF1401
Electrical characteristics
Figure 25. ENOB vs. VREFP
12.5
12
11.5
11
10.5
10
9.5
0.8
0.9
1
1.1
1.2
E xternal Vrefp (V)
Figure 26. SINAD vs. VREFP
-50
-55
-60
Fs =
-65
10 ksps
100 ksps
1 Msps
-70
10 Msps
20 Msps
25 Msps
-75
30 Msps
35 Msps
-80
1.3
1.4
0.8
0.9
Fs =
10 ksps
100 ksps
1 Msps
10 Msps
20 Msps
25 Msps
30 Msps
35 Msps
1
1.1
1.2
1.3
1.4
E xternal Vrefp (V)
Figure 27. SNR vs. VREFP
Figure 28. THD vs. VREFP
80
75
70
65
60
55
0.8
0.9
-50
-55
-60
-65
Fs =
-70
10 ksps
100 ksps
-75
1 Msps
10 Msps
20 Msps
-80
25 Msps
30 Msps
-85
35 Msps
-90
1
1.1
1.2
1.3
1.4
0.8
0.9
E xternal Vrefp (V)
Fs =
10 ksps
100 ksps
1 Msps
10 Msps
20 Msps
25 Msps
30 Msps
35 Msps
1
1.1
1.2
1.3
1.4
E xternal Vrefp (V)
Figure 29. ENOB vs. sine clock, diff. input
12
Figure 30. Clock threshold vs. temperature
11.5
11
10.5
10
1 Msps
F in =
10 Hz
1 kHz
50 kHz
2 MHz
10 MHz
10 Msps
S ampling frequency
100 Msps
Doc ID 13317 Rev 8
19/42