LTC2171-14 LINER [Linear Technology], LTC2171-14 Datasheet - Page 13

• Manufacturer Part Number: LTC2171-14
• Description: Quad 14-Bit, 125Msps ADC with Integrated Drivers
• Manufacturer: LINER [Linear Technology]

block DiagraM
ANALOG
ANALOG
ANALOG
ANALOG
INPUT
INPUT
INPUT
INPUT
SHDN1
SHDN2
SHDN3
SHDN4
CH 1
CH 2
CH 3
CH 4
LTM9012
V
ENC
ENC
REF
+
–
SENSE
REFERENCE
RANGE
SELECT
3.3V
1.25V
V
CC
V
V
DD/2
DD/2
REF
BUFFER
GND
Figure 1. Block Diagram
1.8V
PLL
ADC CORE
ADC CORE
ADC CORE
ADC CORE
14-BIT
14-BIT
14-BIT
14-BIT
V
DD
DIFF . REF .
AMP .
REFH REFL
SERIALIZER
REGISTERS
CONTROL
MODE
1.8V
DATA
OV
DD
9012 BD
LTM9012
OUT1A
OUT1A
OUT1B
OUT1B
OUT2A
OUT2A
OUT2B
OUT2B
OUT3A
OUT3A
OUT3B
OUT3B
OUT4A
OUT4A
OUT4B
OUT4B
DCO
FR
SDO
SDI
SCK
CS
PAR/SER
±
±
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
13
9012f