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OA Introduction
16-3OA
Figure 16−1. OA Block Diagram
OAPMx
OAPx
0
1
1
OAFBRx
A12 ext. (OA0)
A13 ext. (OA1)
A14 ext. (OA2)
OAADC0
4R
4R
2R
2R
R
R
R
R
OAxOUT
R
BOTTOM
R
TOP
OAx
+
−
OAFCx={2 − 7}
OAFBRx > 0
OAADC1
OAFCx=0
OAFCx=1
R
BOTTOM
OAxTAP
OAFCx=6
OAxI0
OA0I1
Int. DAC12_0OUT
00
01
10
11
0
1
OANx=3
00
01
10
11
OAFCx
3
NA
000
001
100
011
010
111
110
101
000
001
100
011
010
111
110
101
3
OAPx=3
1
OAFCx={2,4,5,6}
1
1
OAFCx = {0,1,3}
OAFCx = 7
reserved
AV
CC
reserved
OANx
00
01
10
11
OANx
00
01
10
11
OAxI0
OAxI1
unused
OAxOUT
unused
OANx = 0
A1 int./ext., OA0O (OA0)
A3 int./ext., OA1O (OA1)
A5 int./ext., OA2O (OA2)
A12 int. (OA0)
A13 int. (OA1)
A14 int. (OA2)
Int. DAC12_1OUT
OAxI0
OAxI1
Int. DAC12_0OUT
Int. DAC12_1OUT
OA1R
BOTTOM
(OA0)
OA2R
BOTTOM
(OA1)
OA0R
BOTTOM
(OA2)
OA1TAP (OA0)
OA2TAP (OA1)
OA0TAP (OA2)
0
1
OAADC1
OA2OUT (OA0)
OA0OUT (OA1)
OA1OUT (OA2)