Datasheet

LTC2228/LTC2227/LTC2226
13
222876fb
FUNCTIONAL BLOCK DIAGRAM
DIFF
REF
AMP
REF
BUF
2.2μF
1μF 1μF
0.1μF
INTERNAL CLOCK SIGNALSREFH REFL
CLOCK/DUTY
CYCLE
CONTROL
RANGE
SELECT
1.5V
REFERENCE
FIRST PIPELINED
ADC STAGE
FIFTH PIPELINED
ADC STAGE
SIXTH PIPELINED
ADC STAGE
FOURTH PIPELINED
ADC STAGE
SECOND PIPELINED
ADC STAGE
REFH
REFL
CLK
SHIFT REGISTER
AND CORRECTION
OEM0DE
OGND
OV
DD
222876 F01
INPUT
S/H
SENSE
V
CM
A
IN
–
A
IN
+
2.2μF
THIRD PIPELINED
ADC STAGE
OUTPUT
DRIVERS
CONTROL
LOGIC
SHDN
OF
D11
D0
•
•
•
Figure 1. Functional Block Diagram