SDA9205-2 Infineon Technologies Corporation, SDA9205-2 Datasheet - Page 20
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SDA9205-2
Manufacturer Part Number
SDA9205-2
Description
Triple 8-bit Analog-to-digital-converter
Manufacturer
Infineon Technologies Corporation
Datasheet
1.SDA9205-2.pdf
(31 pages)
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Output Coding for Binary/Two’s Complement Mode
Binary or two’s complement output coding is selectable for each separate output port (A, B, C) via
control inputs DTA, DTB, DTC. This coding is independent from selected formats (8:8:8, 8:4:4,
8:2:2, 8:1:1, 4:8:8, 4:4:4, 4:2:2, 4:1:1).
Table 1
Output Coding for Formats 8:8:8, 8:4:4, 8:2:2, 8:1:1, 4:8:8, 4:4:4, 4:2:2, 4:1:1
Table 1 is valid for
Step
Underflow
0
1
.
.
.
.
254
255
Overflow
V
V
In output format 4:2:2 a special suppression of code 0 and code 255 is provided in the binary output
mode.
Semiconductor Group
CA
CB, C
= ext. clamping level during CLAMP high pulse at
= ext. clamping level during CLAMP high pulse at
VIN
Converter
A
<
.
.
.
.
>
V
V
V
V
V
V
CA
CA
CA
CA
CA
CA
– 0.125 V
– 0.117 V
+ 1.867 V
+ 1.875 V
– 0.125 V
+ 1.875 V
V
REFL
= 0.5 V and
VIN
Converter
B, C
<
.
.
.
.
>
V
V
V
V
V
V
CB, C
CB, C
CB, C
CB, C
CB, C
CB, C
V
REFH
– 1 V
– 1 V
– 0.992 V
+ 0.992 V
+ 1 V
+ 1 V
= 2.5 V
20
OFL
Bit
0
0
0
.
.
.
.
.
0
1
C
C
UFL
Bit
1
0
0
.
.
.
.
.
0
0
ext cl
ext cl
on channel AINA.
on channel AINB and AINC.
Binary
Output
7 6 5 4 3 2 1 0
0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 1
.
.
.
.
1 1 1 1 1 1 1 0
1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1
Two’s
Complement
7 6 5 4 3 2 1 0
1 0 0 0 0 0 0 0
1 0 0 0 0 0 0 0
1 0 0 0 0 0 0 1
.
.
.
.
0 1 1 1 1 1 1 0
0 1 1 1 1 1 1 1
0 1 1 1 1 1 1 1
SDA 9205-2