HI5746
Typical Performance Curves (Continued)
55
SNR
54
SINAD
53
52
fS = 40 MSPS, fIN = 10MHz
VREF+ - VREF- = 0.5V, TA = 25oC
51
2.25 2.3 2.35 2.4 2.45 2.5 2.55 2.6 2.65 2.7 2.75
VREF+ (V)
FIGURE 9. SINAD AND SNR vs VREF +
80
-2HD
75
SFDR
70
-3HD
65
-THD
60
fS = 40 MSPS, fIN = 10MHz
VREF+ - VREF- = 0.5V, TA = 25oC
55
2.25 2.3 2.35 2.4 2.45 2.5 2.55 2.6 2.65 2.7 2.75
VREF+ (V)
NOTE: SFDR depicted here does not include any harmonic
distortion.
FIGURE 10. -2HD, -3HD, -THD AND SFDR vs VREF+
8.8
fS = 40 MSPS, fIN = 10MHz
TA = 25oC
8.6
8.4
53
fS = 40 MSPS, fIN = 10MHz
TA = 25oC
52
SNR
SINAD
51
8.2
8
2.25 2.3 2.35 2.4 2.45 2.5 2.55 2.6 2.65 2.7 2.75
VREF+ (V)
FIGURE 11. EFFECTIVE NUMBER OF BITS (ENOB) vs VREF +
(VREF - NOT DRIVEN)
80
-2HD
fS = 40 MSPS, fIN = 10MHz
TA = 25oC
75
70
-3HD
65
-THD
60
SFDR
55
2.25 2.3 2.35 2.4 2.45 2.5 2.55 2.6 2.65 2.7 2.75
VREF+ (V)
FIGURE 13. -2HD, -3HD, -THD AND SFDR vs VREF +
(VREF - NOT DRIVEN)
9
50
49
2.25 2.3 2.35 2.4 2.45 2.5 2.55 2.6 2.65 2.7 2.75
VREF+ (V)
FIGURE 12. SINAD AND SNR vs VREF + (VREF - NOT DRIVEN)
9.0
fIN = 1MHz
8.8
fIN = 10MHz
8.6
8.4
8.2
fS = 40 MSPS, TA = 25oC
DIFFERENTIAL ANALOG INPUT
8.0
0.25 0.75 1.25 1.75 2.25 2.75 3.25
VCM (V)
3.75
4.25 4.75
FIGURE 14. EFFECTIVE NUMBER OF BITS (ENOB) vs
ANALOG INPUT COMMON MODE VOLTAGE