Cypress MB95310L Series, Руководство пользователя

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MB95310L/370L Series
Document Number: 002-07519 Rev. *A Page 65 of 80
the zero transition point (“00 0000 0000”

“00 0000 0001”) of a device to
the full-scale transition point (“11 1111 1111”

“11 1111 1110”) of the same device.
■
Differential linear error (unit: LSB)
It indicates how much the input voltage required to change the output code by 1 LSB deviates from an ideal value.
■
Total error (unit: LSB)
It indicates the difference between an actual value and a theoretical value. The error can be caused by a zero transition error, a
full-scale transition errors, a linearity error, a quantum error, or noise.
(Continued)
V
FST
Ideal I/O characteristics
001
H
002
H
003
H
004
H
3FD
H
3FE
H
3FF
H
Digital output Digital output
2 LSB
V
OT
1 LSB
0.5 LSB
Total error
Analog input Analog input
001
H
002
H
003
H
004
H
3FD
H
3FE
H
3FF
H
Actual conversion
characteristic
Ideal characteristic
Actual conversion
characteristic
N
V
NT
: A/D converter digital output value
: Voltage at which the digital output transits from (N - 1)
H
to N
H
{1 LSB
×
(N-1) + 0.5 LSB}
V
NT
Total error of
digital output N
V
NT
- {1 LSB
×
(N - 1) + 0.5 LSB}
1 LSB
[LSB] =
V
CC
- V
SS
1024
(V) 1 LSB =
V
SS
V
CC
V
SS
V
CC