參數(shù)資料
型號: ST52513F3
廠商: STMICROELECTRONICS
元件分類: 微控制器/微處理器
英文描述: MICROCONTROLLER, PDSO20
封裝: ROHS COMPLIANT, SOP-20
文件頁數(shù): 31/136頁
文件大小: 2791K
代理商: ST52513F3
16.15 10-BIT ADC CHARACTERISTICS
Operating Conditions: VDD=2.8 V to 5.5 V, TA=-40
° to 85° C, unless otherwise specified.
Notes:
1. Data by design. They are given only as design guidelines and are not tested.
2. When VREF is selected as Internal it corresponds to VDD. When Vref is External it must be <= VDD and >=VSS, and
Channel 0 cannot be used because AIN0 pin is the Input for VREF.
3. Any added external serial resistor will downgrade the ADC accuracy. Data by design, not tested in production.
4. Approximated value corresponding to about 20 conversion cycles, that is recommended at A/D start-up to ensure a
correct conversion.
Table 16.18 ADC Accuracy with VDD=5.0 V
Notes:
1. Data based on characterization results over the whole temperature range, monitored in production.
Symbol
Parameter
Conditions
Min
Typ 1)
Max
Unit
fADC
ADC clock frequency
Min=slow mode Max=fast
mode,
TA=25
°
foscint /12
foscint / 6
MHz
VREF
External reference voltage 2)
VSS
VDD
V
RAIN
External input resistor
400 3)
Ω
RADC
Internal input resistor
1.0
k
Ω
CADC
Internal sample and hold capacitor
9
pF
tSTAB
Stabilization time after ADC enable
Slow mode = 800 kHz
400 4)
μs
tLOAD
Sample capacitor loading time
600
ns
tCONV
Conversion time
20
μs
tSTAB
Stabilization time after ADC enable
Fast mode = 1600 kHz
200 4)
μs
tLOAD
Sample capacitor loading time
600
ns
tCONV
Conversion time
10
μs
Symbol
Parameter
Conditions
Typ
Max
Unit
|ET|
Total unadjusted error 1)
VDD=5V, TA=-40
° to 85° C
Typical values at
TA=25
° C
4.5
LSB
EO
Offset error 1)
11.8
|EG|
Gain Error 1)
35
|ED|
Differential linearity error 1)
2.5
3.5
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