THS0842_14 Datasheet, PDF (21/31 Pages) Texas Instruments – DUAL-INPUT, 8-BIT, 40 MSPS LOW-POWER ANALOG-TO-DIGITAL CONVERTER WITH SINGLE OR DUAL PARALLEL BUS OUTPUT

THS0842
DUAL-INPUT, 8-BIT, 40 MSPS LOW-POWER ANALOG-TO-DIGITAL CONVERTER
WITH SINGLE OR DUAL PARALLEL BUS OUTPUT
SLAS246A – DECEMBER 1999 – REVISED AUGUST 2000
PRINCIPLES OF OPERATION
ac coupled input
C1
VIN+
R
R
–
+
THS0842
AIN–
C2
C1
VIN–
R
R
–
+
AIN+
C2
CML
REFT
REFB
C1
VIN+
C2
C1
VIN–
C2
(a)
R
R
THS0842
AIN+
AIN–
CML
REFT
REFB
(b)
Figure 20. AC-Coupled Differential Input Circuits
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