参数资料
型号: PPC5604BCLL64
厂商: Freescale Semiconductor
文件页数: 76/109页
文件大小: 0K
描述: MCU 32BIT 512K 64MHZ
标准包装: 90
系列: MPC56xx Qorivva
核心处理器: e200z0h
芯体尺寸: 32-位
速度: 64MHz
连通性: CAN,I²C,LIN,SCI,SPI
外围设备: POR,PWM,WDT
输入/输出数: 79
程序存储器容量: 512KB(512K x 8)
程序存储器类型: 闪存
EEPROM 大小: 4K x 16
RAM 容量: 32K x 8
电压 - 电源 (Vcc/Vdd): 3 V ~ 3.6 V
数据转换器: A/D 28x10b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 100-LQFP
包装: 托盘
Package pinouts and signal descriptions
MPC5604B/C Microcontroller Data Sheet, Rev. 11.1
Freescale Semiconductor
69
3.26
ADC electrical characteristics
3.26.1
Introduction
The device provides a 10-bit Successive Approximation Register (SAR) analog-to-digital converter.
Figure 19. ADC characteristic and error definitions
3.26.2
Input impedance and ADC accuracy
In the following analysis, the input circuit corresponding to the precise channels is considered.
To preserve the accuracy of the A/D converter, it is necessary that analog input pins have low AC impedance. Placing a capacitor
with good high frequency characteristics at the input pin of the device can be effective: the capacitor should be as large as
(2)
(1)
(3)
(4)
(5)
Offset error (EO)
Gain error (EG)
1 LSB (ideal)
1023
1022
1021
1020
1019
1018
5
4
3
2
1
0
7
6
1
2
3
4
5
6
7
1017 1018 1019 1020 1021 1022 1023
(1) Example of an actual transfer curve
(2) The ideal transfer curve
(3) Differential non-linearity error (DNL)
(4) Integral non-linearity error (INL)
(5) Center of a step of the actual transfer curve
1 LSB ideal = VDD_ADC / 1024
Vin(A) (LSBideal)
code out
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