LTC2274 Linear Technology, LTC2274 Datasheet - Page 21

• Manufacturer Part Number: LTC2274
• Description: 105Msps Serial Output ADC
• Manufacturer: Linear Technology

www.datasheet4u.com
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
Figure 10. ENC Drive Using a CMOS to PECL Translator
2.2μF
2.2μF
V
ENC
ENC –
CM
+
MC100LVELT22
LTC2274
LTC2274
2274 F07
D0
2274 F08b
3.3V
Q0
Q0
130Ω
83Ω
3.3V
ENC
ENC
130Ω
83Ω
ENC
ENC –
+
–
+
Figure 8a. Equivalent Encode Input Circuit
LTC2274
V
Figure 9. Single-Ended ENC Drive,
Not Recommended for Low Jitter
THRESHOLD
LTC2274
V
2274 F10
DD
V
DD
= 1.6V
1.6V
6k
1.6V
0.1μF
6k
V
DD
1.6V
ENC
ENC
+
–
LTC2274
TO INTERNAL
LTC2274
ADC CLOCK
DRIVERS
2274 F09
2274 F08a
21
2274f