Rainbow Electronics MAX1400 - Manual (Page 18)

MAX1400
+5V, 18-Bit, Low-Power, Multichannel,
Oversampling (Sigma-Delta) ADC
18 ______________________________________________________________________________________
Table 8. Transfer-Function Register Mapping—Normal Mode (M1 = 0, M0 = 0)
Table 9. Transfer-Function Register Mapping—Offset-Cal Mode (M1 = 0, M0 = 1)
X = Don’t care
X = Don’t care
3
2
3
1
1
3
TRANSFER
FUNCTION REG.
2
1
2
2
1
1
2
2
1
AIN5–AIN6
AIN3–AIN4
AIN5–AIN6
AIN1–AIN2
AIN1–AIN2
AIN5–AIN6
CHANNEL
AIN3–AIN4
AIN1–AIN6
AIN3–AIN6
AIN4–AIN6
AIN2–AIN6
AIN1–AIN6
AIN3–AIN6
AIN4–AIN6
AIN2–AIN6
X
X
X
X
0
1
0
X
X
X
X
1
0
1
A0
0
1
1
1 X 1
X 1
1 X 1
X 0
0
0 1 1
0
SCAN
0 1
0 1
1
1
1 X 0
X 0
1 X 0
X 0
0
0
0 1 0
1 0
0 0 0
A1
0
DIFF
0
1 0 1 1
1 1 1 1
0
DIFF
0
A1
0 0 1 0
0 1
0 1 2 0
2
1
0
0
1 1
0 X 1 1
0 X
0 X 2 1
2
Do not use
1
0
1 0
1 0 2
SCAN
0
1 1
TRANSFER
FUNCTION REG.
3
1
0
0
0 X
0 X 3 1
0 X
1 X 1 1
3
3
1
1
0
A0
1
0
1
1
X
X
X
0
1
0
X
X
X
X
CALOFF+–CALOFF-
CALOFF+–CALOFF-
CALOFF+–CALOFF-
CALOFF+–CALOFF-
AIN2–AIN6
AIN4–AIN6
AIN3–AIN6
CALOFF+–CALOFF-
CHANNEL
CALOFF+–CALOFF-
CALOFF+–CALOFF-
CALOFF+–CALOFF-
AIN1–AIN2
CALGAIN+–CALGAIN-
AIN5–AIN6
1 X
1 X 3 1
1 X
1 X 3 1
3
2
1
1 X
X
X
X
AIN5–AIN6
CALGAIN+–CALGAIN-
CALOFF+–CALOFF-
AIN3–AIN4
Do Not Use
Do Not Use
0 X 1 1 X AIN1–AIN6
1 1 Do not use 1 1