Datasheet
Table Of Contents
- Features
- Description
- Applications
- Typical Application
- Absolute Maximum Ratings
- Pin Configuration
- Order Information
- Converter Characteristics
- Analog Input
- Digital Accuracy
- Internal Reference Characteristics
- Digital Inputs and Outputs
- Power Requirements
- Timing Characteristics
- Electrical Characteristics
- Timing Diagrams
- Typical perForMance Characteristics
- Pin Functions
- Block Diagram
- Applications Information
- Typical Applications
- Package Description
- Revision History
- Related Parts
LTC2268-14/
LTC2267-14/LTC2266-14
18
22687614fa
block DiagraM
Figure 1. Functional Block Diagram
PLL
SAMPLE-
AND-HOLD
14-BIT
ADC CORE
A
IN1
+
A
IN1
–
14-BIT
ADC CORE
A
IN2
+
A
IN2
–
1.8V 1.8V
ENC
+
ENC
–
OV
DD
V
DD
V
DD
/2
DIFF
REF
AMP
REF
BUF
2.2µF
0.1µF 0.1µF
0.1µF
REFH REFL
RANGE
SELECT
1.25V
REFERENCE
REFH REFL
OUT1A
–
OUT1A
+
OUT1B
–
OUT1B
+
OUT2A
–
OUT2A
+
OUT2B
–
OUT2B
+
DCO
+
DCO
–
OGND
V
CM1
GND
V
CM2
0.1µF0.1µF
SDOCS
SENSE
V
REF
1µF
MODE
CONTROL
REGISTERS
SCKPAR/SER SDI
226814 F01
SAMPLE-
AND-HOLD
DATA
SERIALIZER
FR
+
FR
–