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| DDC264 Datasheet, PDF (12/26 Pages) Texas Instruments – 64-Channel, Current-Input Analog-to-Digital Converter | |||
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DDC264
SBAS368C â MAY 2006 â REVISED JULY 2011
www.ti.com
CONV
CLK
SINTA
SINTB
SREF1
SREF2
SRESET
SA/D1A
Configuration of
Integrator A
VREF
Integrator A
Voltage Output
Convert
Wait
Integrate
Convert
Wait
Figure 21. Integration Timing (see Figure 20)
CF
SREF1
VREF
SINT
IN
SREF2
CF
SRESET
SA/D
To Converter
SINT
IN
a) Reset/Auto Zero Configuration
SRESET
SINT
IN
SRESET
CF
SREF1
SREF2
SA/D
c) Integrate Configuration
VREF
b) Wait Configuration
CF
To Converter
SINT
IN
SRESET
SREF1
SREF2
SA/D
VREF
To Converter
SREF1
SREF2
SA/D
VREF
To Converter
d) Convert Configuration
Figure 22. Four Configurations of the Front-End Integrators
12
Copyright © 2006â2011, Texas Instruments Incorporated
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