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PCAN0603E49R9BST5  
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数据转换器
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型号PCAN0603E49R9BST5
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Texas Instruments ADS1216Y

The ADS1216 is a precision, wide dynamic range, delta-sigma, Analog-to-Digital (A/D) converter with 24-bit resolution operating from 2.7V to 5.25V supplies. The delta-sigma A/D converter provides up to 24 bits of no-missing-code performance and an effective resolution of 22 bits.

The eight input channels are multiplexed. Internal buffering can be selected to provide a very high input impedance for direct connection to transducers or low-level voltage signals. Burnout current sources are provided that allow for the detection of an open or shorted sensor. An 8-bit Digital-to-Analog Converter (DAC) provides an offset correction with a range of 50% of the FSR (Full-Scale Range).

The PGA (Programmable Gain Amplifier) provides selectable gains of 1 to 128 with an effective resolution of 19 bits at a gain of 128. The A/D conversion is accomplished with a second-order delta-sigma modulator and programmable sinc filter. The reference input is differential and can be used for ratiometric cancellation. The onboard current DACs operate independently with the maximum current set by an external resistor.

The serial interface is SPI-compatible. Eight bits of digital I/O are also provided that can be used for input or output. The ADS1216 is designed for high-resolution measurement applications in smart transmitters, industrial process control, weight scales, chromatography, and portable instrumentation.

德克萨斯仪器ads1216y
ADS1216是一种高精度,动态范围宽,Δ-∑,模数(A/D)与24位的分辨率从2.7V至5.25V电源转换器的操作。Δ∑A / D转换器提供多达24位的无丢失的代码性能和22位的有效分辨率。
八个输入通道被多路复用。内部缓冲可以选择提供一个非常高的输入阻抗直接连接到传感器或低电平电压信号。提供了允许检测开路或短路传感器的烧毁电流源。一个8位数字到模拟转换器(DAC)提供了一个偏置校正与一系列的FSR 50%(满量程范围)。
PGA(可编程增益放大器)提供1至128的可选增益,有效分辨率为19位,增益为128。A/D转换采用二阶Δ∑调制器和可编程的sinc滤波器实现。参考输入差分可用于比例取消。板载电流DAC独立操作由一个外部电阻的最大电流设置。
串行接口是SPI兼容的。还提供了八位数字I/O,可用于输入或输出。ADS1216是专为智能变送器的高分辨率测量的应用,工业过程控制,体重秤,色谱法和便携式仪器。
¥ 43.00 (RMB)/PCS
 
 
 

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