參數(shù)資料
型號: M308B8SGP
元件分類: 微控制器/微處理器
英文描述: 32-BIT, 32 MHz, MICROCONTROLLER, PQFP144
封裝: 20 X 20 MM, 0.50 MM PITCH, PLASTIC, LQFP-144
文件頁數(shù): 65/70頁
文件大?。?/td> 1150K
代理商: M308B8SGP
69
XMEGA D4 [DATASHEET]
8135P–AVR–01/2014
32.1.6 ADC characteristics
Table 32-8. Power supply, reference and input range.
Table 32-9. Clock and timing.
Symbol
Parameter
Condition
Min.
Typ.
Max.
Units
AVCC
Analog supply voltage
VCC- 0.3
VCC+ 0.3
V
VREF
Reference voltage
1
AVCC- 0.6
Rin
Input resistance
Switched
4.5
k
Cin
Input capacitance
Switched
5
pF
RAREF
Reference input resistance
(leakage only)
>10
M
CAREF
Reference input capacitance
Static load
7
pF
Vin
Input range
0
VREF
V
Conversion range
Differential mode, Vinp - Vinn
-VREF
VREF
Conversion range
Single ended unsigned mode, Vinp
-
V
VREF-V
Symbol
Parameter
Condition
Min.
Typ.
Max.
Units
ClkADC
ADC clock frequency
Maximum is 1/4 of peripheral clock
frequency
100
1800
kHz
Measuring internal signals
125
fClkADC
Sample rate
16
300
ksps
fADC
Sample rate
Current limitation (CURRLIMIT) off
300
CURRLIMIT = LOW
250
CURRLIMIT = MEDIUM
150
CURRLIMIT = HIGH
50
Sampling time
Configurable in steps of 1/2 ClkADC cycles
up to 32 ClkADC cycles
0.28
320
s
Conversion time (latency)
(RES+1)/2 + GAIN
RES (Resolution) = 8 or 12, GAIN=0 to 3
4.5
10
ClkADC
cycles
Start-up time
ADC clock cycles
12
24
ADC settling time
After changing reference or input mode
7
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