|
MAX1401_02 Datasheet, PDF (20/36 Pages) Maxim Integrated Products – +3V, 18-Bit, Low-Power, Multichannel, Oversampling (Sigma-Delta) ADC | |||
|
◁ |
+3V, 18-Bit, Low-Power, Multichannel,
Oversampling (Sigma-Delta) ADC
Table 8. Transfer-Function Register MappingâNormal Mode (M1 = 0, M0 = 0)
SCAN
DIFF
A1
A0
CHANNEL
TRANSFER-
FUNCTION REGISTER
0
0
0
0
0
0
0
1
0
0
1
0
0
0
1
1
0
1
0
0
0
1
0
1
0
1
1
0
0
1
1
1
1
0
X
X
1
0
X
X
1
0
X
X
1
0
X
X
1
0
X
X
1
1
X
X
1
1
X
X
1
1
X
X
1
1
1
1
AIN1âAIN6
1
AIN2âAIN6
1
AIN3âAIN6
2
AIN4âAIN6
2
AIN1âAIN2
1
AIN3âAIN4
2
AIN5âAIN6
3
Do Not Use
AIN1âAIN6
1
AIN2âAIN6
1
AIN3âAIN6
2
AIN4âAIN6
2
AIN5âAIN6
3
AIN1âAIN2
1
AIN3âAIN4
2
AIN5âAIN6
3
Do Not Use Do Not Use
X = Donât care
Table 9. Transfer-Function Register MappingâOffset-Calibration Mode (M1 = 0, M0 = 1)
SCAN
DIFF
A1
0
0
0
0
0
0
0
0
1
0
0
1
0
1
0
0
1
0
0
1
1
0
1
1
1
0
X
1
0
X
1
0
X
1
0
X
1
0
X
1
0
X
1
0
X
1
1
X
1
1
X
1
1
X
1
1
X
1
1
X
1
1
1
A0
CHANNEL
TRANSFER-
FUNCTION REGISTER
0
CALOFF+âCALOFF-
1
1
CALOFF+âCALOFF-
1
0
CALOFF+âCALOFF-
2
1
CALOFF+âCALOFF-
2
0
CALOFF+âCALOFF-
1
1
CALOFF+âCALOFF-
2
0
CALOFF+âCALOFF-
3
1
Do Not Use
X
AIN1âAIN6
1
X
AIN2âAIN6
1
X
AIN3âAIN6
2
X
AIN4âAIN6
2
X
AIN5âAIN6
3
X
CALOFF+âCALOFF-
3
X
CALGAIN+âCALGAIN-
3
X
AIN1âAIN2
1
X
AIN3âAIN4
2
X
AIN5âAIN6
3
X
CALOFF+âCALOFF-
3
X
CALGAIN+âCALGAIN-
3
1
Do Not Use Do Not Use
X = Donât care
20 ______________________________________________________________________________________
|
▷ |