Tables – Rainbow Electronics ADC12138 User Manual
Page 25
Tables
(Continued)
TABLE III ADC12130 and ADC12132 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
a
b
a
b
CH0
CH1
Differential
L
H
b
a
b
a
CH0
CH1
H
L
a
b
a
b
CH0
COM
Single-Ended
H
H
a
b
a
b
CH1
COM
Note
ADC12130 do not have A DIN1 A DIN2 MUXOUT1 and MUXOUT2 pins
TABLE IV Mode Programming
ADC12138
DI0
DI1
DI2
DI3
DI4
DI5
DI6
DI7
Mode Selected
(Current)
(next Conversion
DO Format
Cycle)
ADC12130
and
DI0
DI1
DI2
DI3
DI4
DI5
ADC12132
See Tables II or III
L
L
L
L
12 Bit Conversion
12 or 13 Bit MSB First
See Tables II or III
L
L
L
H
12 Bit Conversion
16 or 17 Bit MSB First
See Tables II or III
L
H
L
L
12 Bit Conversion
12 or 13 Bit LSB First
See Tables II or III
L
H
L
H
12 Bit Conversion
16 or 17 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 (LSB First)
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
H
H
L
L
H
H
H
L
Acquisition Time
34 CCLK Cycles
No Change
L
L
L
L
H
H
H
H
User Mode
No Change
H
X
X
X
H
H
H
H
Test Mode
No Change
(CH1 – CH7 become Active Outputs)
Note
The A D powers up with no Auto Cal no Auto Zero 10 CCLK acquisition time 12-bit
a
sign conversion power up 12- or 13-bit MSB First and user mode
X
e
Don’t Care
TABLE V Conversion Read Data Only Mode Programming
CS
CONV
PD
Mode
L
L
L
See Table IV for Mode
L
H
L
Read Only (Previous DO Format) No Conversion
H
X
L
Idle
X
X
H
Power Down
X
e
Don’t Care
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