Datasheet

Do Not Use
MAX1403
+3V, 18-Bit, Low-Power, Multichannel,
Oversampling (Sigma-Delta) ADC
20 ______________________________________________________________________________________
Table 8. Transfer-Function Register Mapping—Normal Mode (M1 = 0, M0 = 0)
Table 9. Transfer-Function Register Mapping—Offset-Calibration Mode (M1 = 0, M0 = 1)
3
2
3
1
1
3
TRANSFER-
FUNCTION REGISTER
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 X1
X1
1 X1
X0
0
0 11
0
SCAN
01
01
1
1
1 X0
X0
1 X0
X0
0
0
0 10
10
0 00
A1
0
DIFF
0
Do Not Use11 11
AIN1–AIN6X1 1X0
AIN3–AIN4
CALOFF+–CALOFF-
CALGAIN+–CALGAIN-
AIN5–AIN6
X
X
X
X1
1
2
3
1 3X1
X1
1 3X1
X1
AIN5–AIN6
CALGAIN+–CALGAIN-
AIN1–AIN2
CALOFF+–CALOFF-
CALOFF+–CALOFF-
CALOFF+–CALOFF-
CHANNEL
CALOFF+–CALOFF-
Do Not Use
AIN3–AIN6
AIN4–AIN6
AIN2–AIN6
CALOFF+–CALOFF-
CALOFF+–CALOFF-
CALOFF+–CALOFF-
CALOFF+–CALOFF-
X
X
X
X
0
1
0
X
X
X
1
1
0
1
A0
0
1
1
3
3
1 1X1
X0
1 3X0
X0
0
0
1
3
TRANSFER-
FUNCTION REGISTER
11
0
SCAN
201
01
0
1 2
1 2X0
X0
1 1X0
11
0
0
1
2
0 210
10
0 100
A1
0
DIFF
0
Do Not Use11 11
Do Not Use10 11
X = Don’t care