XRD98L62 Datasheet, PDF (35/37 Pages) Exar Corporation – CCD Image Digitizers with CDS, PGA and 12-Bit A/D

Preliminary
XRD98L62
75
REXT = 12.5K
REXT = 18.2K
70
REXT = 20K
REXT =25K
65
60
55
50
AVDD = DVDD = 2.7V
45 ^{FS = 30MHz}
TA = 25 ^OC
SNR = SIGNALpeak-peak / RMS Noise (shorted input)
40
0
6
12
18
24
30
36
PGA GAIN, dB
Figure 26. XRD98L61 SNR vs PGA GAIN @ 30MHz WITH DIFFERENT R_EXT
2.40
AVDD = DVDD = 2.7V
FS = 30MHz
1.80
1.20
0.60
0.00
-0.60
-1.20
-1.80
-2.40
10
Rev. P2.00
13
16
19
22
REXT, KOhms
Figure 27. XRD98L62 SYSTEM DNL vs R_EXT @ 30MHz
35
-20 DEG C
25 DEG C
75 DEG C
-20 DEG C
25 DEG C
75 DEG C
25