HI1175_05 Datasheet, PDF (7/13 Pages) Intersil Corporation – 8-Bit, 20 MSPS, Flash A/D Converter

HI1175
Typical Performance Curves (Continued)
1.4
T_A = 25^oC, V_RT = 2.5V, V_RB = 0.5V
V_DD = 5.0V, f_C = 20 MSPS
1.0
0.6
0.2
0
0
2
4
6
8
10
INPUT FREQUENCY (MHz)
FIGURE 5. DIFFERENTIAL NON-LINEARITY vs INPUT
FREQUENCY
50
49
ENCODE 21MHz
48
47
46 ENCODE 31MHz
45
ENCODE 26MHz
44
43
42
41
40
0 1 2 3 4 5 6 7 8 9 10 11
INPUT FREQUENCY (MHz)
FIGURE 6. HI1175JCP SNR vs INPUT FREQUENCY
8.00
7.75
7.50
7.25
7.00
ENCODE 21MHz
6.75
6.50
6.25
ENCODE 26MHz
6.00
5.75
ENCODE 31MHz
5.50
5.25
5.00
0 1 2 3 4 5 6 7 8 9 10 11
INPUT FREQUENCY (MHz)
FIGURE 7. HI1175JCP ENOB vs INPUT FREQUENCY
-30
-33
-35
ENCODE 26MHz
-38
-40
ENCODE 31MHz
-43
-45
-48
ENCODE 21MHz
-50
-53
-55
0 1 2 3 4 5 6 7 8 9 10 11
INPUT FREQUENCY (MHz)
FIGURE 8. HI1175JCP THD vs INPUT FREQUENCY
8.00
7.75
7.50
7.25
7.00
6.75
6.50
6.25
6.00
5.75
5.50
5.25
5.00
21
f_IN = 1MHz
f_IN = 5MHz
f_IN = 10MHz
26
31
36
CLOCK FREQUENCY (MHz)
FIGURE 9. ENOB vs CLOCK FREQUENCY
1.0
0.8
0.6
0.4
0.2
0
-0.2
-55 -35 -15
5 25 45 65
TEMPERATURE (^oC)
85 105 125
FIGURE 10. INL vs TEMPERATURE
7