THS1007_14 Datasheet, PDF (23/34 Pages) Texas Instruments – 10-BIT, 4 ANALOG INPUT, 6-MSPS, SIMULTANEOUS SAMPLING ANALOG-TO-DIGITAL CONVERTER

www.ti.com
THS1007
SLAS286B − AUGUST 2000− REVISED DECEMBER 2010
ANALOG INPUT CHANNEL SELECTION
The analog input channels of the THS1007 can be selected via bits 3 to 7 of control register 0. One single
channel (single-ended or differential) is selected via bit 3 and bit 4 of control register 0. Bit 5 controls the
selection between single-ended and differential configuration. Bit 6 and bit 7 select the autoscan mode, if more
than one input channel is selected. Table 10 shows the possible selections.
Table 9. Analog Input Channel Configurations
BIT 7
SCAN
0
0
0
0
0
0
1
1
1
1
1
1
0
0
1
1
1
1
1
1
1
1
1
1
BIT 6
DIFF1
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
1
1
1
1
1
1
1
BIT 5
DIFF0
0
0
0
0
1
1
0
0
0
1
1
0
1
1
0
1
1
0
0
0
1
1
1
1
BIT 4
CHSEL1
0
0
1
1
0
0
0
1
1
0
1
0
1
1
0
0
1
0
1
1
0
0
1
1
BIT 3
CHSEL0
0
1
0
1
0
1
1
0
1
1
0
1
0
1
0
0
1
0
0
1
0
1
0
1
DESCRIPTION OF THE SELECTED INPUTS
Analog input AINP (single ended)
Analog input AINM (single ended)
Analog input BINP (single ended)
Analog input BINM (single ended)
Differential channel (AINP−AINM)
Differential channel (BINP−BINM)
Autoscan two single ended channels: AINP, AINM, AINP, …
Autoscan three single ended channels: AINP, AINM, BINP, AINP, …
Autoscan four single ended channels: AINP, AINM, BINP, BINM, AINP, …
Autoscan one differential channel and one single ended channel AINP,
(BINP−BINM), AINP, (BINP−BINM), …
Autoscan one differential channel and two single ended channel AINP,
AINM, (BINP−BINM), AINP, …
Autoscan two differential channels (AINP−AINM), (BINP−BINM),
(AINP−AINM), …
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
23