AT90PWM81-16SF Atmel, AT90PWM81-16SF Datasheet - Page 203
AT90PWM81-16SF
Manufacturer Part Number
AT90PWM81-16SF
Description
IC MCU AVR 8K FLASH ISP 20SOIC
Manufacturer
Atmel
Series
AVR® 90PWM Lightingr
Datasheet
1.AT90PWM81-16MN.pdf
(325 pages)
Specifications of AT90PWM81-16SF
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
SPI
Peripherals
Brown-out Detect/Reset, PWM, WDT
Number Of I /o
16
Program Memory Size
8KB (8K x 8)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b; D/A 1x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 105°C
Package / Case
20-SOIC (7.5mm Width)
For Use With
ATSTK600-SOIC - STK600 SOCKET/ADAPTER FOR SOIC
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
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Manufacturer
Quantity
Price
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Part Number:
AT90PWM81-16SF
Manufacturer:
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Quantity:
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17. Analog to Digital Converter - ADC
17.1
7734P–AVR–08/10
Features
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The AT90PWM81 features a 10-bit successive approximation ADC. The ADC is connected to an 15-
channel Analog Multiplexer which allows eleven single-ended input. The single-ended voltage inputs
refer to 0V (GND).
The device also supports 2 differential voltage input combinations which are equipped with a programma-
ble gain stage, providing amplification steps of 14dB (5x), 20 dB (10x), 26 dB (20x), or 32dB (40x) on the
differential input voltage before the A/D conversion. On the amplified channels, 8-bit resolution can be
expected.
The ADC contains a Sample and Hold circuit which ensures that the input voltage to the ADC is held at a
constant level during conversion. A block diagram of the ADC is shown in
The ADC has a separate analog supply voltage pin, AV
V
Internal reference voltages of nominally 2.56V or AV
be externally decoupled at the AREF pin by a capacitor for better noise performance.
CC
10-bit Resolution
0.5 LSB Integral Non-linearity
± 2 LSB Absolute Accuracy
8- 250 µs Conversion Time
Up to 120 kSPS at Maximum Resolution
11 Multiplexed Single Ended Input Channels
One Differential input channels with accurate (5%) programmable gain 5, 10, 20 and 40
Optional Left Adjustment for ADC Result Readout
0 - V
Selectable 2.56 V ADC Reference Voltage
Free Running or Single Conversion Mode
ADC Start Conversion by Auto Triggering on Interrupt Sources
Interrupt on ADC Conversion Complete
Sleep Mode Noise Canceler
Temperature sensor
. See the paragraph
CC
ADC Input Voltage Range
“ADC Noise Canceler” on page 209
CC
CC
are provided On-chip. The voltage reference may
. AV
on how to connect this pin.
CC
must not differ more than ± 0.3V from
Figure
AT90PWM81
17-1.
203
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