Datasheet

LTC2240-12
11
224012fd
FUNCTIONAL BLOCK DIAGRAM
Figure 1. Functional Block Diagram
DIFF
REF
AMP
REF
BUF
2.2μF
1μF
0.1μF0.1μF
1μF
INTERNAL CLOCK SIGNALSREFH REFL
DIFFERENTIAL
INPUT
LOW JITTER
CLOCK
DRIVER
RANGE
SELECT
1.25V
REFERENCE
FIRST PIPELINED
ADC STAGE
FIFTH PIPELINED
ADC STAGE
FOURTH PIPELINED
ADC STAGE
SECOND PIPELINED
ADC STAGE
ENC
+
REFHAREFLB REFLA REFHB
ENC
–
SHIFT REGISTER
AND CORRECTION
OEM0DE
OGND
OF
OV
DD
D11
D0
CLKOUT
224012 F01
INPUT
S/H
SENSE
V
CM
A
IN
–
A
IN
+
2.2μF
THIRD PIPELINED
ADC STAGE
OUTPUT
DRIVERS
CONTROL
LOGIC
LVDS SHDN
•
•
•
+
–
+
–
+
–
+
–
V
DD
GND