ATAVRDISPLAYX Atmel, ATAVRDISPLAYX Datasheet - Page 300
ATAVRDISPLAYX
Manufacturer Part Number
ATAVRDISPLAYX
Description
KIT EVAL XMEGA DISPLAY
Manufacturer
Atmel
Specifications of ATAVRDISPLAYX
Main Purpose
*
Embedded
*
Utilized Ic / Part
*
Primary Attributes
*
Secondary Attributes
*
Silicon Manufacturer
Atmel
Silicon Family Name
ATxmega
Kit Contents
Board
Features
Temperature Sensor, Mono Speaker Via Audio Amplifier
Svhc
No SVHC (15-Dec-2010)
Core Architecture
AVR
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATAVRDISPLAYX
Manufacturer:
Atmel
Quantity:
135
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25.10 ADC Input Model
8077H–AVR–12/09
Figure 25-18. ADC timing for free running mode
An analog voltage input must be able to charge the sample and hold (S/H) capacitor in the ADC
in order to achieve maximum accuracy. Seen externally the ADC input consists of a input chan-
nel (R
300
Figure 25-19. ADC input for single ended measurements
Figure 25-20. ADC input for differential measurements and differential measurements with gain
In order to achieve n bit accuracy, the source output resistance, R
ADC input resistance on a pin:
GAINSTAGE AMPLIFY
START CH0, wo/GAIN
START CH1, wo/GAIN
GAINSTAGE SAMPLE
START CH0, w/GAIN
START CH1, w/GAIN
CONV COMPLETE
Negative
and
Positive
Positive
ADC SAMPLE
input
input
input
channel
CLK
Figure 25-20 on page 300
ADC
) and the switch (R
1
0
2
switch
2
1
R
R
R
3
channel
channel
shows the ADC input channels.
channel
) resistance, and the S/H capacitor.
2
3
2
4
3
3
5
R
R
R
switch
switch
switch
0
6
2
1
7
source
2
, must be less than the
3
2
Figure 25-19 on page
8
C
C
C
Sample
3
Sample
Sample
XMEGA A
3
0
9
VCC/2
VCC/2
0
1
10
300
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