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MB91F467DA датащи(PDF) 92 Page - Cypress Semiconductor

номер детали MB91F467DA
подробное описание детали  32-bit RISC, load/store architecture, five-stage pipeline
PDF  137 Pages
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производитель  CYPRESS [Cypress Semiconductor]
домашняя страница  http://www.cypress.com
Logo CYPRESS - Cypress Semiconductor

MB91F467DA датащи(HTML) 92 Page - Cypress Semiconductor

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Document Number: 002-04613 Rev. *A
Page 92 of 137
MB91460D Series
(Continued)
*1 : Supply current at AVCC5, if A/D converter and ALARM comparator are not operating,
(VDD5 = AVCC5 = AVRH = 5.0 V)
*2 : Input current at AVRH5, if A/D converter is not operating, (VDD5 = AVCC5 = AVRH = 5.0 V)
Sampling Time Calculation
Tsamp = ( 2.6 kOhm + REXT) × 11pF × 7; for 4.5V  AVCC5  5.5V
Tsamp = (12.1 kOhm + REXT) × 11pF × 7; for 3.0V  AVCC5  4.5V
Conversion Time Calculation
Tconv = Tsamp + Tcomp
Definition of A/D converter terms
• Resolution
Analog variation that is recognizable by the A/D converter.
• Nonlinearity error
Deviation between actual conversion characteristics and a straight line connecting the zero transition point
(00 0000 0000B 00 0000 0001B) and the full scale transition point (11 1111 1110B 11 1111 1111B).
• Differential nonlinearity error
Deviation of the input voltage from the ideal value that is required to change the output code by 1 LSB.
• Total error
This error indicates the difference between actual and theoretical values, including the zero transition error, full scale transition
error, and nonlinearity error.
Parameter
Symbol
Pin name
Value
Unit
Remarks
Min
Typ
Max
Reference voltage range
AVRH
AVRH5
0.75 ×
AVCC5
—AVCC5V
AVRL
AVSS5AVSS5—
AVCC5 × 0.25
V
Power supply current
IA
AVCC5—
2.5
5
mA
A/D Converter ac-
tive
IAH
AVCC5—
—
5
μA
A/D Converter not
operated *1
Reference voltage current
IR
AVRH5
—
0.7
1
mA
A/D Converter ac-
tive
IRH
AVRH5
—
—
5
μA
A/D Converter not
operated *2



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