Datasheet

ADC12030, ADC12032, ADC12034
ADC12038, ADC12H030, ADC12H032
ADC12H034, ADC12H038
www.ti.com SNAS080K –JULY 1999–REVISED MARCH 2013
Table 3. ADC12034 Multiplexer Addressing
Analog Channel Addressed
and Assignment ADC Input Polarity Multiplexer Output Channel
MUX Address
with A/DIN1 tied to MUXOUT1 Assignment Assignment
Mode
and A/DIN2 tied to MUXOUT2
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
and Assignment ADC Input Polarity Multiplexer Output
MUX Address Mode
with A/DIN1 tied to MUXOUT1 Assignment Channel Assignment
and A/DIN2 tied to MUXOUT2
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
(1)
ADC12038 DI0 DI1 DI2 DI3 DI4 DI5 DI6 DI7
ADC12034 DI0 DI1 DI2 DI3 DI4 DI5 DI6 DO Format
Mode Selected
(next Conversion
ADC12030
(Current)
Cycle)
and DI0 DI1 DI2 DI3 DI4 DI5
ADC12032
See Table 2, Table 3, or
L L L L 12 Bit Conversion 12 or 13 Bit MSB First
Table 4
See Table 2, Table 3, or
L L L H 12 Bit Conversion 16 or 17 Bit MSB First
Table 4
See Table 2, Table 3, or
L L H L 8 Bit Conversion 8 or 9 Bit MSB First
Table 4
L L L L L L H H 12 Bit Conversion of Full-Scale 12 or 13 Bit MSB First
See Table 2, Table 3, or
L H L L 12 Bit Conversion 12 or 13 Bit LSB First
Table 4
See Table 2, Table 3, or L H L H 12 Bit Conversion 16 or 17 Bit LSB First
Table 4
See Table 2, Table 3, or
L H H L 8 Bit Conversion 8 or 9 Bit LSB First
Table 4
(1) The ADC powers up with no Auto Cal, no Auto Zero, 10 CCLK acquisition time, 12-bit + sign conversion, power up, 12- or 13-bit MSB
first, and user mode.
X = Don't Care
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ADC12H038