Datasheet

C[1:0]='00' CHx0+/CHx0® -
P[1:0]='00' FeaturesOFF®
C[1:0]='01' CHx1 /CHx0® - -
P[1:0]='11' FeaturesOFF®
C[1:0]='10' CHx1+/CHx0® -
P[1:0]='00' FeaturesOFF®
12-BitData
CHB1 /CHB0- -
12-BitData
CHA1+/CHA0-
12-BitData
CHA0+/CHA0-
12-BitData
CHB0+/CHB0-
12-BitData
CHA1 /CHA0- -
Previous12-Bit
DataCHAx
0 sm 0.5 sm 1.0 sm 1.5 sm 2.0 sm 2.5 sm 3.0 sm
1
16
1
16
1
16
1
16
1
16
1
1
CLOCK
CONVST
SDI
M0
M1
RD
CS
SDOA
SDOB
BUSY
High-Z
ConversionofBoth
CHx1 /CHx0- -
NoConversion,
ReadDataOnly
ConversionofBoth
CHx1+/CHx0-
NoConversion,
ReadDataOnly
ConversionofBoth
CHx0+/CHx0-
PreviousConversion
ofBothCHxx
Every2nd
CONVST
IsIgnored
Every2nd
CONVST
IsIgnored
Every2nd
CONVST
IsIgnored
DataCHBx
Previous12-Bit
C[1:0]IsIgnored
P[1:0]='00' FeaturesOFF®
C[1:0]IsIgnored
P[1:0]='11’ FeaturesOFF®
C[1:0]IsIgnored
P[1:0]='00’ FeaturesOFF®
B
AA
B
A
ADS7863
SBAS383E –JUNE 2007–REVISED JANUARY 2011 www.ti.com
PSEUDO-DIFFERENTIAL MODE II
Channel switching is performed by setting the C[1:0]
(Not ADS7861-Compatible)
bits in the SDI Register accordingly (see also the
Serial Data Input section).
In Mode II, the ADS7863 input multiplexers can also
operate in a pseudo-differential configuration. In this
The input multiplexer cannot be used for
case, output data are available on terminal SDOA
pseudo-differential signals in Mode III or Mode IV.
only, while SDOB is held in 3-state.
Figure 39. Pseudo-Differential Mode II (M0 = 0; M1 = 1)
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Product Folder Link(s): ADS7863