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ADC12H030 Datasheet(PDF) 26 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part No. ADC12H030
Description  Self-Calibrating 12-Bit Plus Sign Serial I/O A/D Converters with MUX and Sample/Hold
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Maker  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
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ADC12H030 Datasheet(HTML) 26 Page - National Semiconductor (TI)

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TABLE 3. ADC12034 Multiplexer Addressing
Analog Channel Addressed
A/D Input
Multiplexer
Mode
MUX
and Assignment
Polarity
Output
Address
with A/DIN1 tied to MUXOUT1
Assignment
Channel
and A/DIN2 tied to MUXOUT2
Assignment
DI0
DI1
DI2
CH0
CH1
CH2
CH3
COM
A/DIN1
A/DIN2
MUXOUT1
MUXOUT2
L
L
L
+
+
CH0
CH1
L
L
H
+
+
CH2
CH3
Differential
L
H
L
+
+
CH0
CH1
L
H
H
+
+
CH2
CH3
H
L
L
+
+
CH0
COM
H
L
H
+
+
CH2
COM
Single-Ended
H
H
L
+
+
CH1
COM
H
H
H
+
+
CH3
COM
TABLE 4. ADC12032 and ADC12030 Multiplexer Addressing
Analog Channel Addressed
A/D Input
Multiplexer
Mode
MUX
and Assignment
Polarity
Output
Address
with A/DIN1 tied to MUXOUT1
Assignment
Channel
and A/DIN2 tied to MUXOUT2
Assignment
DI0
DI1
CH0
CH1
COM
A/DIN1
A/DIN2
MUXOUT1
MUXOUT2
L
L
+
+
CH0
CH1
Differential
L
H
+
+
CH0
CH1
H
L
+
+
CH0
COM
Single-Ended
H
H
+
+
CH1
COM
Note: ADC12030 and ADC12H030 do not have A/DIN1, A/DIN2, MUXOUT1
and MUXOUT2 pins.
TABLE 5. Mode Programming
ADC12038
DI0
DI1
DI2
DI3
DI4
DI5
DI6
DI7
Mode Selected
(Current)
DO Format
(next Conversion
Cycle)
ADC12034
DI0
DI1
DI2
DI3
DI4
DI5
DI6
ADC12030
and
DI0
DI1
DI2
DI3
DI4
DI5
ADC12032
See Tables 2, 3 or Table 4
LLLL
12 Bit Conversion
12 or 13 Bit MSB First
See Tables 2, 3 or Table 4
L
L
L
H
12 Bit Conversion
16 or 17 Bit MSB First
See Tables 2, 3 or Table 4
L
L
H
L
8 Bit Conversion
8 or 9 Bit MSB First
L
L
L
L
L
L
H
H
12 Bit Conversion of Full-Scale
12 or 13 Bit MSB First
See Tables 2, 3 or Table 4
L
H
L
L
12 Bit Conversion
12 or 13 Bit LSB First
See Tables 2, 3 or Table 4
L
H
L
H
12 Bit Conversion
16 or 17 Bit LSB First
See Tables 2, 3 or Table 4
L
H
H
L
8 Bit Conversion
8 or 9 Bit LSB First
L
L
L
L
L
H
H
H
12 Bit Conversion of Offset
12 or 13 Bit LSB First
L
L
L
L
H
L
L
L
Auto Cal
No Change
L
L
L
L
H
L
L
H
Auto Zero
No Change
L
L
L
L
H
L
H
L
Power Up
No Change
L
L
L
L
H
L
H
H
Power Down
No Change
L
L
L
L
H
H
L
L
Read Status Register
No Change
L
L
L
L
H
H
L
H
Data Out without Sign
No Change
H
L
L
L
H
H
L
H
Data Out with Sign
No Change
L
L
L
L
H
H
H
L
Acquisition Time — 6 CCLK Cycles
No Change
L
H
L
L
H
H
H
L
Acquisition Time — 10 CCLK Cycles
No Change
H
L
L
L
H
H
H
L
Acquisition Time — 18 CCLK Cycles
No Change
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