ATxmega32D4 Atmel Corporation, ATxmega32D4 Datasheet - Page 39
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ATxmega32D4
Manufacturer Part Number
ATxmega32D4
Description
Manufacturer
Atmel Corporation
Specifications of ATxmega32D4
Flash (kbytes)
32 Kbytes
Pin Count
44
Max. Operating Frequency
32 MHz
Cpu
8-bit AVR
# Of Touch Channels
16
Hardware Qtouch Acquisition
No
Max I/o Pins
34
Ext Interrupts
34
Usb Speed
No
Usb Interface
No
Spi
4
Twi (i2c)
2
Uart
2
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
12
Adc Resolution (bits)
12
Adc Speed (ksps)
200
Analog Comparators
2
Resistive Touch Screen
No
Temp. Sensor
Yes
Crypto Engine
No
Sram (kbytes)
4
Eeprom (bytes)
1024
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
Yes
Temp. Range (deg C)
-40 to 85
I/o Supply Class
1.6 to 3.6
Operating Voltage (vcc)
1.6 to 3.6
Fpu
No
Mpu / Mmu
no / no
Timers
4
Output Compare Channels
14
Input Capture Channels
14
Pwm Channels
14
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATxmega32D4-AU
Manufacturer:
Atmel
Quantity:
123
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Quantity:
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Part Number:
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Manufacturer:
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Manufacturer:
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1 910
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23. ADC - 12-bit Analog to Digital Converter
23.1
23.2
8135J–AVR–12/10
Features
Overview
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XMEGA D4 devices have one Analog to Digital Converter (ADC), see
The ADC converts analog voltages to digital values. The ADC has 12-bit resolution and is
capable of converting up to 200K samples per second. The input selection is flexible, and both
singleended and differential measurements can be done. For differential measurements an
optional gain stage is available to increase the dynamic range. In addition several internal signal
inputs are available. The ADC can provide both signed and unsigned results.
ADC measurements can either be started by application software or an incoming event from
another peripheral in the device. The latter ensure the ADC measurements can be started with
predictable timing, and without software intervention. The ADC has one channel, meaning there
is one input selection (MUX selection) and one result register available.
Both internal and external analog reference voltages can be used. A very accurate internal
1.00V reference is available.
An integrated temperature sensor is available and the output from this can be measured with the
ADC. A VCC/10 signal and the Bandgap voltage can also be measured by the ADC.
One ADC with 12-bit resolution
200 ksps sample rate
Signed and Unsigned conversions
12 single ended inputs
8x4 differential inputs
3 internal inputs:
Software selectable gain of 2, 4, 8, 16, 32 or 64
Software Selectable accuracy of 8- or 12-bit.
Internal or External Reference selection
Event triggered conversion for accurate timing
Interrupt/Event on compare result
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Integrated Temperature Sensor
VCC voltage divided by 10
Bandgap voltage
Figure 23-1 on page
XMEGA D4
40.
39