ATSAM3U-EK Atmel, ATSAM3U-EK Datasheet - Page 1058
ATSAM3U-EK
Manufacturer Part Number
ATSAM3U-EK
Description
KIT EVAL FOR AT91SAM3U CORTEX
Manufacturer
Atmel
Type
MCUr
Datasheets
1.ATSAM3U-EK.pdf
(2 pages)
2.ATSAM3U-EK.pdf
(61 pages)
3.ATSAM3U-EK.pdf
(1171 pages)
4.ATSAM3U-EK.pdf
(53 pages)
Specifications of ATSAM3U-EK
Contents
Board
Processor To Be Evaluated
SAM3U
Data Bus Width
32 bit
Interface Type
RS-232, USB
Operating Supply Voltage
3 V
Silicon Manufacturer
Atmel
Core Architecture
ARM
Core Sub-architecture
Cortex - M3
Silicon Core Number
SAM3U4E
Silicon Family Name
SAM3U
Kit Contents
Board CD Docs
Rohs Compliant
Yes
For Use With/related Products
AT91SAM3U
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATSAM3U-EK
Manufacturer:
Atmel
Quantity:
10
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41.5.5
1058
SAM3U Series
Input Gain and Offset
Table 41-4.
Table 41-5.
The ADC12B has a built in Programmable Gain Amplifier (PGA) and Programmable Offset.
The Programmable Gain Amplifier can be set to gains of 1/2, 1, 2 and 4. The Programmable
Gain Amplifier can be used either for single ended applications or for fully differential
applications.
The gain is configurable through the GAIN bit as shown in
Table 41-6.
To allow full range, analog offset of the ADC12B can be configured by the OFFSET bit. The Off-
set can only be changed in single ended mode. In fully differential mode the offset is always set
to Vrefin/2.
Table 41-7.
Input Pins
AD12B0
AD12B1
AD12B2
AD12B3
AD12B4
AD12B5
AD12B6
AD12B7
Input Pins
AD12B0-AD12B1
AD12B2-AD12B3
AD12B4-AD125B
AD12B6-AD12B7
OFFSET Bit
GAIN<0:1>
00
01
10
11
0
1
Input Pins and Channel Number in Single Ended Mode
Input Pins and Channel Number In Differential Mode
Gain of the Sample and Hold Unit: GAIN Bits and DIFF Bit.
Offset of the Sample and Hold Unit: OFFSET DIFF and Gain (G)
OFFSET (DIFF = 0)
GAIN (DIFF = 0)
Vrefin/2G
Vrefin/2
1
1
2
4
Channel Number
CH0
CH2
CH4
CH6
Channel Number
CH0
CH1
CH2
CH3
CH4
CH5
CH6
CH7
Table
41-6.
OFFSET (DIFF = 1)
GAIN (DIFF = 1)
Vrefin/2
0.5
6430D–ATARM–25-Mar-11
1
2
2
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