AD8197 データシートの表示（PDF） - Analog Devices
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AD8197 Datasheet PDF : 32 Pages
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AD8197
Table 9. Dual Mode, 2× [8:1], High Speed Switch Mapping
HS_CH[3:0] O[3:2] O[1:0] Description
X000
A1
A0
The A0 and A1 high speed
channels switched to output
X001
A3
A2
The A2 and A3 high speed
channels switched to output
X010
B1
B0
The B0 and B1 high speed
channels switched to output
X011
B3
B2
The B2 and B3 high speed
channels switched to output
X100
C1
C0
The C0 and C1 high speed
channels switched to output
X101
C3
C2
The C2 and C3 high speed
channels switched to output
X110
D1
D0
The D0 and D1 high speed
channels switched to output
X111
D3
D2
The D2 and D3 high speed
channels switched to output
Table 10. Single Mode, 1× [16:1], High Speed Switch
Mapping
HS_CH[3:0] O[3:0] Description
0000
A0
High Speed Channel A0 switched to
output
0001
A1
High Speed Channel A1 switched to
output
0010
A2
High Speed Channel A2 switched to
output
0011
A3
High Speed Channel A3 switched to
output
0100
B0
High Speed Channel B0 switched to
output
0101
B1
High Speed Channel B1 switched to
output
0110
B2
High Speed Channel B2 switched to
output
0111
B3
High Speed Channel B3 switched to
output
1000
C0
High Speed Channel C0 switched to
output
1001
C1
High Speed Channel C1 switched to
output
1010
C2
High Speed Channel C2 switched to
output
1011
C3
High Speed Channel C3 switched to
output
1100
D0
High Speed Channel D0 switched to
output
1101
D1
High Speed Channel D1 switched to
output
1110
D2
High Speed Channel D2 switched to
output
1111
D3
High Speed Channel D3 switched to
output
Preliminary Technical Data
AUXILIARY DEVICE MODES REGISTER
AUX_EN: Auxiliary (Low Speed) Switch Enable Bit
Table 11. AUX_EN Description
AUX_EN
Description
0
Auxiliary switch off, no low speed input/output
to low speed common input/output
connection
1
Auxiliary switch on
AUX_SM[1:0]: Auxiliary (Low Speed) Switching Mode
Select Bus
Table 12. AUX_SM[1:0] Description
AUX_SM[1:0] Description
00
Quad Mode, 4× [4:1]
01
Dual Mode, 2× [8:1]
10
Single Mode, 1× [6:1]
11
Illegal value; previous value of AUX_SM[1:0]
retained
AUX_CH[3:0]: Auxiliary (Low Speed) Switch Source
Select Bus
Table 13. Quad Mode, 4× [4:1], Auxiliary Switch Mapping
AUX_CH[3:0] AUX_COM[3:0] Description
XX00
AUX_A[3:0]
Auxiliary Source A switched
to output
XX01
AUX_B[3:0]
Auxiliary Source B switched
to output
XX10
AUX_C[3:0]
Auxiliary Source C switched
to output
XX11
AUX_D[3:0]
Auxiliary Source D switched
to output
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