参数资料
型号: TSC80C31-20CHR
厂商: ATMEL CORP
元件分类: 微控制器/微处理器
英文描述: 8-BIT, 20 MHz, MICROCONTROLLER, CQCC44
封装: LCC-44
文件页数: 117/143页
文件大小: 4602K
代理商: TSC80C31-20CHR
75
XMEGA A3BU [DATASHEET]
8362F–AVR–02/2013
37.6
ADC characteristics
Table 37-8.
Power supply, reference and input range.
Table 37-9. 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
4.0
k
Cin
Input capacitance
Switched
4.4
pF
RAREF
Reference input resistance
(leakage only)
>10
M
CAREF
Reference input capacitance
Static load
7
pF
VIN
Input range
-0.1
AVCC+0.1
V
Conversion range
Differential mode, Vinp - Vinn
-VREF
VREF
VIN
Conversion range
Single ended unsigned mode, Vinp
-
V
VREF-V
ΔV
Fixed offset voltage
190
LSB
Symbol
Parameter
Condition
Min.
Typ.
Max.
Units
ClkADC
ADC Clock frequency
Maximum is 1/4 of Peripheral clock
frequency
100
2000
kHz
Measuring internal signals
100
125
fclkADC
Sample rate
Current limitation (CURRLIMIT) off
100
2000
ksps
CURRLIMIT = LOW
100
1500
CURRLIMIT = MEDIUM
100
1000
CURRLIMIT = HIGH
100
500
Sampling Time
1/2 ClkADC cycle
0.25
5
s
Conversion time (latency)
(RES+2)/2+(GAIN !=0)
RES (Resolution) = 8 or 12
5
8
ClkADC
cycles
Start-up time
ADC clock cycles
12
24
ClkADC
cycles
ADC settling time
After changing reference or input mode
7
After ADC flush
1
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