THS1007 Datasheet, PDF (23/36 Pages) Texas Instruments – 10-BIT, 4 ANALOG INPUT, 6-MSPS, SIMULATANEOUS SAMPLING ANALOG-TO-DIGITAL CONVERTER

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THS1007
SLAS286A – AUGUST 2000– REVISED DECEMBER 2002
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
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