ADC0808-N
具有 8 通道多路复用器的 A/D 转换器,兼容 8 位微处理器
制造商:TI
产品信息
描述 The ADC0808, ADC0809 data acquisition component is a monolithic CMOS device with an 8-bit analog-to-digital converter, 8-channel multiplexer and microprocessor compatible control logic. The 8-bit A/D converter uses successive approximation as the conversion technique. The converter features a high impedance chopper stabilized comparator, a 256R voltage divider with analog switch tree and a successive approximation register. The 8-channel multiplexer can directly access any of 8-single-ended analog signals.The device eliminates the need for external zero and full-scale adjustments. Easy interfacing to microprocessors is provided by the latched and decoded multiplexer address inputs and latched TTL TRI-STATE outputs.The design of the ADC0808, ADC0809 has been optimized by incorporating the most desirable aspects of several A/D conversion techniques. The ADC0808, ADC0809 offers high speed, high accuracy, minimal temperature dependence, excellent long-term accuracy and repeatability, and consumes minimal power. These features make this device ideally suited to applications from process and machine control to consumer and automotive applications. For 16-channel multiplexer with common output (sample/hold port) see ADC0816 data sheet. (See AN-247 (Literature Number SNOA595) for more information.)特性Easy Interface to All Microprocessors Operates Ratiometrically or with 5 VDC or Analog Span Adjusted Voltage Reference No Zero or Full-Scale Adjust Required 8-Channel Multiplexer with Address Logic 0V to VCC Input Range Outputs meet TTL Voltage Level Specifications ADC0808 Equivalent to MM74C949 ADC0809 Equivalent to MM74C949-1 Key Specifications Resolution: 8 Bits Total Unadjusted Error: ±½ LSB and ±1 LSB Single Supply: 5 VDC Low Power: 15 mW Conversion Time: 100 μs All trademarks are the property of their respective owners.
2023-01-09
2024-10-21
adc0808引脚图及功能ADC0808 是含8 位A/D 转换器、8 路多路开关,以及与微型计算机兼容的控制逻辑的CMOS组件,其转换方法为逐次逼近型。ADC0808的精度为 1/2LSB。在AD 转换器内部有一个高阻抗斩波稳定比较器,一个带模拟开关树组的256 电阻分压器,以...
2021-07-12
使用ADC0808构建的模数转换器电路模数转换器电路在数字系统中非常有用,其中将原始模拟信号转换为数字数据位具有显着意义。ADC在几种微控制器中也非常熟悉,但是在微控制器中使用ADC需要编程技能,并不是每个人都喜欢编程。上面显示的电路将为那些没有任何编程技能的人提供解决方案。
2023-06-30
基于51单片机的全自动洗衣机设计系统使用的模块有AT89C51单片机+LCD1602+矩阵键盘+MM74C922译码器+L298N电机驱动+电机+ADC0808模数转换+74LS373锁存器+蜂鸣器+小灯。
2022-09-29
基于AT89C51单片机的雨量数码管显示设计系统使用AT89C51单片机作为主控,通过ADC0808和电位器模拟雨量的变化,单片机会将采集到的雨量数据处理并将其显示在数码管上,雨量的上限和下限通过程序进行了设定,分别是130和120,当雨量超过120后电机就会运转,当雨量超过130运转速度加快。
2022-09-28
详解ADC的信噪比公式其中N是ADC的位数,比如对于一个10bit的ADC,N=10,当ADC采集一个满量程的正弦波时,那么信噪比SNR=6.02*10+1.76=61.96dB,那么这个公式是怎么来的呢?
2022-09-07
基于ADC0808的模数转换器电路图这是一个基于8位模数转换器ADC0808的非常简单的模数转换器电路。通常,模数转换器(A/D 转换器/ADC)需要通过微处理器进行接口,以将模拟信息转换为数字格式。这需要额外的硬件和适当的软件,从而导致更多的复杂性和总成本。
2022-07-02