MAX11047_11 Datasheet, PDF (20/25 Pages) Maxim Integrated Products – 4-/6-/8-Channel, 16-/14-Bit, Simultaneous-Sampling ADCs

4-/6-/8-Channel, 16-/14-Bit,
Simultaneous-Sampling ADCs
7FFF
V_LSB =
FS
65536
FULL-SCALE
TRANSITION
7FFE
0001
0000
FFFF
FFFE
8001
8000
0
FS/2
+FS
INPUT VOLTAGE (LSB)
OUTPUT CODE = ^{VIN x 65536} - 32768, FS = ^{5 x VREF}
V_REFIO
x
5
4.096
4.096
Figure 8a. Two’s Complement Transfer Function for 16-Bit
Devices
1FFF
V_LSB =
FS
16384
FULL-SCALE
TRANSITION
1FFE
0001
0000
3FFF
3FFE
2001
2000
0
FS/2
+FS
INPUT VOLTAGE (LSB)
OUTPUT CODE = ^{VIN x 16384} - 8192,
V_REFIO
x
5
4.096
FS = ^{5 x VREF}
4.096
Figure 8b. Two’s Complement Transfer Function for 14-Bit
Devices
FFFF
V_LSB =
FS
65536
FULL-SCALE
TRANSITION
FFFE
3FFF
V_LSB =
FS
16384
FULL-SCALE
TRANSITION
3FFE
8001
2001
8000
2000
7FFF
1FFF
7FFE
1FFE
0001
0001
0000
0000
0
FS/2
+FS
INPUT VOLTAGE (LSB)
OUTPUT
CODE
=
V_IN x 65536
V_REFIO
x
5
4.096
,
FS =
5 x V_REF
4.096
0
FS/2
+FS
INPUT VOLTAGE (LSB)
OUTPUT
CODE
=
V_IN x 16384
V_REFIO
x
5
4.096
,
FS =
5 x V_REF
4.096
Figure 9a. Offset-Binary Transfer Function for 16-Bit Devices
Figure 9b. Offset-Binary Transfer Function for 14-Bit Devices
20 ______________________________________________________________________________________