
LTC2175-14/
LTC2174-14/LTC2173-14
18
21754314fa
FuncTional block DiagraM
DIFF
REF
AMP
REF
BUF
2.2F
0.1F
REFH
REFL
RANGE
SELECT
1.25V
REFERENCE
REFH
GND
REFL
VCM12
VDD/2
VDD
1.8V
VCM34
DATA
SERIALIZER
SDO
OGND
OUT1A
OUT1B
OUT2A
OUT2B
OUT3A
OUT3B
OUT4A
OUT4B
DATA CLOCK OUT
FRAME
CS
217514 F01
S/H
SENSE
VREF
CH 1
ANALOG
INPUT
CH 2
ANALOG
INPUT
CH 3
ANALOG
INPUT
CH 4
ANALOG
INPUT
1F
0.1F
MODE
CONTROL
REGISTERS
SCK
PAR/SER
SDI
14-BIT
ADC CORE
14-BIT
ADC CORE
14-BIT
ADC CORE
14-BIT
ADC CORE
OVDD
1.8V
ENC+ ENC–
PLL
Figure 1. Functional Block Diagram