
LTC2242-10
11
224210fd
FuncTional block DiagraM
Figure 1. Functional Block Diagram
DIFF
REF
AMP
REF
BUF
2.2μF
1μF
0.1μF
1μF
INTERNAL CLOCK SIGNALS
REFH
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+
REFHA
REFLB
REFLA REFHB
ENC–
SHIFT REGISTER
AND CORRECTION
OE
M0DE
OGND
OF
OVDD
D9
D0
CLKOUT
224210 F01
INPUT
S/H
SENSE
VCM
AIN–
AIN+
2.2μF
THIRD PIPELINED
ADC STAGE
OUTPUT
DRIVERS
CONTROL
LOGIC
LVDS SHDN
+
–
+
–
+
–+
–
VDD
GND