ADC12030CIWM National Semiconductor, ADC12030CIWM Datasheet - Page 26

• Manufacturer Part Number: ADC12030CIWM
• Description: Self-Calibrating 12-Bit Plus Sign Serial I/O A/D Converters with MUX and Sample/Hold
• Manufacturer: National Semiconductor

www.national.com
ADC12038
ADC12034
ADC12030
ADC12032
DI0
DI0
H
H
H
H
L
L
L
L
Note: ADC12030 and ADC12H030 do not have A/DIN1, A/DIN2, MUXOUT1 and MUXOUT2 pins.
H
H
Tables
L
L
Address
and
MUX
Address
MUX
DI1
H
H
H
H
L
L
L
L
DI1
H
H
L
L
(Continued)
See Tables 2, 3 or Table 4
See Tables 2, 3 or Table 4
See Tables 2, 3 or Table 4
See Tables 2, 3 or Table 4
See Tables 2, 3 or Table 4
See Tables 2, 3 or Table 4
DI2
DI0
DI0
DI0
H
H
H
H
L
L
L
L
H
L
L
L
L
L
L
L
L
CH0
+
−
+
CH0
with A/DIN1 tied to MUXOUT1
and A/DIN2 tied to MUXOUT2
DI1
DI1
DI1
Analog Channel Addressed
+
−
+
L
L
L
L
L
L
L
L
L
with A/DIN1 tied to MUXOUT1
and A/DIN2 tied to MUXOUT2
Analog Channel Addressed
and Assignment
DI2
DI2
CH1
L
L
L
L
L
L
L
L
L
−
+
+
and Assignment
TABLE 4. ADC12032 and ADC12030 Multiplexer Addressing
CH1
−
+
+
DI3
CH2
L
L
L
L
L
L
L
L
L
+
−
+
TABLE 3. ADC12034 Multiplexer Addressing
DI4
DI3
DI2
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
CH3
−
+
+
TABLE 5. Mode Programming
DI5
DI4
DI3
COM
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
−
−
COM
−
−
−
−
DI6
DI5
DI4
H
H
H
H
H
H
L
L
L
L
L
L
L
L
L
DI7
DI6
DI5
A/DIN1
A/DIN1
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
26
+
−
+
+
Assignment
+
+
−
−
+
+
+
+
Assignment
A/D Input
A/D Input
Polarity
Polarity
12 Bit Conversion of Full-Scale
12 Bit Conversion of Offset
A/DIN2
A/DIN2
Data Out without Sign
Read Status Register
Data Out with Sign
12 Bit Conversion
12 Bit Conversion
12 Bit Conversion
12 Bit Conversion
−
+
−
−
−
−
+
+
−
−
−
−
8 Bit Conversion
8 Bit Conversion
Mode Selected
Power Down
Auto Zero
Power Up
(Current)
Auto Cal
MUXOUT1
MUXOUT1
CH0
CH0
CH0
CH1
CH0
CH2
CH0
CH2
CH0
CH2
CH1
CH3
Assignment
Assignment
Multiplexer
Multiplexer
Channel
Channel
Output
Output
MUXOUT2
MUXOUT2
COM
COM
COM
COM
COM
COM
CH1
CH3
CH1
CH3
CH1
CH1
12 or 13 Bit MSB First
16 or 17 Bit MSB First
12 or 13 Bit MSB First
12 or 13 Bit LSB First
16 or 17 Bit LSB First
12 or 13 Bit LSB First
8 or 9 Bit MSB First
8 or 9 Bit LSB First
(next Conversion
DO Format
No Change
No Change
No Change
No Change
No Change
No Change
No Change
Single-Ended
Cycle)
Single-Ended
Differential
Differential
Mode
Mode