Datasheet

1 16 1 16
Bothchannel0sareconvertedfirst,
followedbyconversionofbothchannel1s.
C[1:0]isignored
P[1:0]= ‘00’ SDIfeaturesarenotused®
C[1:0]isignored
P[1:0]= ‘11’ SDIfeaturesarenotused®
C[1:0]isignored
P[1:0]= ‘11’ SDIfeaturesarenotused®
Previous12-BitDataCHAx
12-BitDataCHA0
12-BitDataCHA1
Previous12-BitDataCHBx
12-BitDataCHB0
12-BitDataCHB1
PreviousConversionofBothCHxx ConversionofBothCHx0 ConversionofBothCHx1
CH1
CH1
CH0
CH0
CLOCK
CONVST
SDI
M0
M1
RD
CS
SDOA
SDOB
BUSY
0 sm 0.5 sm 1.0 sm
ADS7863
www.ti.com SBAS383E –JUNE 2007–REVISED JANUARY 2011
MODE III
Output data consist of a channel indicator ('0' for
CHx0 or '1' for CHx1), followed by a '0', 12 bits of
With M0 set to '1' and M1 = '0', the ADS7863
conversion results, and another '00'.
automatically cycles between the differential inputs
(ignoring the SDI register bits C[1:0]) while offering
the conversion result of CHAx on SDOA and the
conversion result of CHBx on SDOB (see Figure 34).
Figure 34. Mode III Timing Diagram (M0 = 1; M1 = 0)
Copyright © 2007–2011, Texas Instruments Incorporated Submit Documentation Feedback 21
Product Folder Link(s): ADS7863