參數(shù)資料
型號(hào): ATTINY84A-CCU
廠商: Atmel
文件頁數(shù): 119/135頁
文件大小: 0K
描述: IC MCU 8BIT 8K FLASH 15UFBGA
標(biāo)準(zhǔn)包裝: 490
系列: AVR® ATtiny
核心處理器: AVR
芯體尺寸: 8-位
速度: 20MHz
連通性: USI
外圍設(shè)備: 欠壓檢測/復(fù)位,POR,PWM,溫度傳感器,WDT
輸入/輸出數(shù): 12
程序存儲(chǔ)器容量: 8KB(4K x 16)
程序存儲(chǔ)器類型: 閃存
EEPROM 大?。?/td> 512 x 8
RAM 容量: 512 x 8
電壓 - 電源 (Vcc/Vdd): 1.8 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 8x10b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 15-UFBGA
包裝: 托盤
MB91470/480 Series
83
Definition of 8/10-bit A/D Converter Terms
Resolution
: Analog variation that is recognized by the A/D converter.
Linearity error
: Deviation between the line connecting zero transition point
(0000000000
←→0000000001) and full-scale transition point
(1111111110
←→1111111111) and actual conversion characteristics.
Differential linear error : Deviation from the ideal value of input voltage necessary to change the output code
by ILSB.
Total Error
: This error is the difference between actual and ideal values, including the zero
transition error/full-scale transition error/linearity error.
(Continued)
FFFH
FFEH
FFDH
004H
003H
002H
001H
AVSS
AVRH
{1 LSB (N
1) + VOT}
AVSS
AVRH
(N
2)H
(N
1)H
NH
(N
+ 1)H
Actual conversion
characteristic
VFST
(Measurement
value)
VNT
VOT
V(N+1)T
VNT
Actual conversion
characteristic
Actual conversion
characteristic
Actual conversion
characteristic
(Measurement
value)
(Measurement value)
(Measurement
value)
(Measurement value)
Ideal characteristic
Linearity error
Differential linear error
Digital
output
Digital
output
Analog input
N
: A/D converter digital output value
VOT
: Voltage at which digital output changes from 000H to 001H.
VFST : Voltage at which digital output changes from 3FEH to 3FFH.
VNT
: Voltage at which digital output changes from (N
1) H to NH.
Linear error in digital output N
=
VNT
{1 LSB × (N 1) + VOT}
[LSB]
1 LSB
Differential linear error in digital output N
=
V (N+1) T
VNT
1 [LSB]
1 LSB
=
VFST
VOT
1022
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