8- and 4-Channel, 3 ꢀ ꢁREF
Multirange Inputs, Serial 14-Bit ADCs
Table 6. Range-Select Bits
DIF/
SGL
R2
R1
R0
MODE
TRANSFER FUNCTION
0
0
0
0
No Range Change*
Single-Ended
—
Bipolar (-3 x V
Full-Scale Range (FSR) = (3 x V
)/4 to (+3 x V
)/4
0
0
0
0
0
0
0
0
0
1
1
1
0
1
1
0
0
1
1
0
1
0
1
0
Figure 12
Figure 13
Figure 14
Figure 12
Figure 13
Figure 14
REF
REF
)/2
REF
Single-Ended
Unipolar (-3 x V
)/2 to 0
REF
FSR = (3 x V
)/2
REF
Single-Ended
Unipolar 0 to (+3 x V
)/2
REF
FSR = (3 x V
)/2
REF
Single-Ended
Bipolar (-3 x V
)/2 to (+3 x V )/2
REF
REF
2/MAX103
FSR = 3 x V
REF
Single-Ended
Unipolar (-3 x V
)/2 to 0
REF
FSR = 3 x V
REF
Single-Ended
Unipolar 0V to (+3 x V
)/2
REF
FSR = 3 x V
REF
DEFAULT SETTING
Single-Ended
0
1
1
1
Figure 12
Bipolar (-3 x V
) to (+3 x V
)
REF
REF
REF
FSR = 6 x V
1
1
0
0
0
0
0
1
No Range Change**
Differential
—
Bipolar (-3 x V
)/2 to (+3 x V
)/2
Figure 12
REF
REF
REF
FSR = 3 x V
1
1
0
0
1
1
0
1
Reserved
Reserved
—
—
Differential
Bipolar 3 x V
to +3 x V
REF
1
1
0
0
Figure 12
REF
FSR = 6 x V
REF
1
1
1
1
0
1
1
0
Reserved
Reserved
—
—
Differential
1
1
1
1
Bipolar -6 x V
FSR = 12 x V
to +6 x V
Figure 12
REF
REF
REF
*Conversion-Start Byte (see Table 3).
**Mode-Control Byte (see Table 3).
20 ______________________________________________________________________________________
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
