LTC2272CUJ LINER [Linear Technology], LTC2272CUJ Datasheet - Page 25

• Manufacturer Part Number: LTC2272CUJ
• Description: 16-Bit, 80Msps/65Msps Serial Output ADC
• Manufacturer: LINER [Linear Technology]

APPLICATIONS INFORMATION
T1 = MA/COM ETC1-1-13
RESISTORS AND CAPACITORS
ARE 0402 PACKAGE SIZE
3.3V
1μF
0.1μF
0.1μF
Figure 8b. Transformer Driven Encode
Figure 7. A 2.25V Range ADC with
an External 2.5V Reference
2, 3
T1
50Ω
50Ω
LTC6652-2.5
1.25V
4, 5, 7 ,8
0.1μF
6
8.2pF
100Ω
SENSE
2.2μF
2.2μF
Figure 10. ENC Drive Using a CMOS to PECL Translator
V
CM
ENC
ENC –
+
MC100LVELT22
LTC2273/
LTC2272
22732 F07
LTC2273/
LTC2272
D0
22732 F08b
3.3V
Q0
Q0
130Ω
83Ω
3.3V
ENC
ENC –
ENC
ENC
130Ω
83Ω
+
+
–
Figure 8a. Equivalent Encode Input Circuit
LTC2273/
LTC2272
V
LTC2273/LTC2272
THRESHOLD
V
Figure 9. Single-Ended ENC Drive,
Not Recommended for Low Jitter
DD
22732 F10
V
DD
1.6V
= 1.6V
LTC2273/LTC2272
6k
1.6V
6k
0.1μF
V
DD
1.6V
ENC
ENC
+
–
TO INTERNAL
ADC CLOCK
LTC2273/
LTC2272
DRIVERS
22732 F09
22732 F08a
25
22732f