MAX1323ECM-T Maxim Integrated, MAX1323ECM-T Datasheet - Page 15

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MAX1323ECM-T

Manufacturer Part Number
MAX1323ECM-T
Description
Analog to Digital Converters - ADC
Manufacturer
Maxim Integrated
Datasheet
maximum voltage ratings of the analog inputs when
choosing MSV. Determine the input voltage as a func-
tion of V
using the following equation:
Figure 6. ±10V Bipolar Transfer Function
Figure 7. ±5V Bipolar Transfer Function
0x1FFD
0x1FFC
0x1FFD
0x1FFC
0x1FFF
0x1FFE
0x0001
0x0000
0x3FFF
0x2003
0x2002
0x2001
0x2000
0x1FFF
0x1FFE
0x0001
0x0000
0x3FFF
0x2003
0x2002
0x2001
0x2000
REF
V
-8192 -8190
-8192 -8190
CH
, V
_
MSV
=
______________________________________________________________________________________
INPUT VOLTAGE (V
INPUT VOLTAGE (V
, and the output code in decimal
LSB
×
8 x V
4 x V
CODE
-1 0 +1
-1 0 +1
(MSV)
(MSV)
REFADC
REFADC
CH_
CH_
- V
- V
10
MSV
MSV
1 LSB =
1 LSB =
IN LSBs)
IN LSBs)
+
V
+8189
+8189
MSV
8 x V
4 x V
14-Bit, Parallel-Interface ADCs
2
2
REFADC
REFADC
14
14
+8191
+8191
8 x V
4 x V
REFADC
REFADC
526ksps, Single-Channel,
Table 2. ±10V Bipolar Code Table
Table 3. ±5V Bipolar Code Table
BINARY OUTPUT CODE
BINARY OUTPUT CODE
TWO’S COMPLEMENT
TWO’S COMPLEMENT
01 1111 1111 1111 ➔
01 1111 1111 1110 ➔
00 0000 0000 0001 ➔
00 0000 0000 0000 ➔
11 1111 1111 1111 ➔
10 0000 0000 0001 ➔
10 0000 0000 0000 ➔
01 1111 1111 1111 ➔
01 1111 1111 1110 ➔
00 0000 0000 0001 ➔
00 0000 0000 0000 ➔
11 1111 1111 1111 ➔
10 0000 0000 0001 ➔
10 0000 0000 0000 ➔
0x1FFE
0x1FFE
0x1FFF
0x0001
0x0000
0x3FFF
0x2001
0x2000
0x1FFF
0x0001
0x0000
0x3FFF
0x2001
0x2000
EQUIVALENT
EQUIVALENT
DECIMAL
(CODE
DECIMAL
(CODE
OUTPUT
OUTPUT
-8191
-8192
-8191
-8192
8191
8190
8191
8190
-1
-1
1
0
1
0
10
10
)
)
VOLTAGE (V)
(V
VOLTAGE (V)
(V
V
V
REF
-10.0000
REF
MSV
MSV
-0.0012
-9.9988
-0.0006
-4.9994
-5.0000
9.9988
9.9976
0.0012
INPUT
INPUT
4.9994
4.9988
0.0006
0
0
= 2.5V,
= 2.5V,
= 0V)
= 0V)
15

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