支持4~20mA输出的工业变送器信号处理专用芯片

NSA2860（X）是一颗为4~20mA电流输出或者0~5V/0~10V电压输出的工业变送器专门开发的ASSP芯片。NSA2860（X）其内部集成电桥驱动，双路恒流源驱动，PGA和24位高精度ADC，可方便的用于接口电桥型压力传感器或者RTD/TC等温度传感器。芯片内部集成客户可编程数字校准逻辑，也提供方便的OWI接口可以通过4~20mA的模拟线路直接进行通信，使得客户可以方便的进行传感器装配后标定和标定系数的保存。另外, NSA2860（X）也集成外部JFET控制器，可以在24V的标准工业环路供电应用条件下直接使用而无需额外的电源控制器。过去几年中，这颗芯片已经在工业压力变送器，工业温度变送 •集成电桥驱动，高精度PGA，24位高精度ADC，同时支持比例测量法，支持应变片类型或者电阻桥式传感器输入\n•集成双路恒流源输出，支持三线制或者四线制RTD温度传感器输入\n•集成外部JFET控制器，支持24V工业环路供电方式直接供电\n•支持4~20mA输出或者0~5V/0~10V模拟量输出方式\n•支持SPI总线或者I2C数字接口，也可以做数字型变送器的模拟前端使用\n•OWI接口，可以在两线制4~20mA接线的情况下支持客户装配后标定\n•数字传感器标定方式，支持高达三阶的传感器非线性拟合校准和二阶温度系数校准\n•静态电流低，1.5mA的工作电流完美支持4~20mA环路供电\n•供电;

Novosense

纳芯微电子

Digital Receiver OC-192/STM-64

Description The R2860A receiver module incorporates a highspeed planar PIN diode and a GaAs PHEMT preamplifier to provide exceptionally high performance. The unit provides high bandwidth and sensitivity to operate with long, dispersive fibers, plus wide dynamic range for operation over a variety

文件：83.76 Kbytes 页数：6 Pages

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R2860D Digital Receiver OC-192/STM-64

Description The R2860D receiver module incorporates a highspeed planar PIN diode and an HBT preamplifier to provide exceptionally high linearity. The receiver is designed to provide very clean pulse response at 10 Gbits/s that results in high-quality eye patterns (see Figure 1). Features ■ Line

文件：107.02 Kbytes 页数：6 Pages

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R2860E Digital Receiver OC-192/STM-64

Description The R2860E receiver module incorporates a highspeed planar PIN diode and a GaAs PHEMT preamplifier to provide exceptionally high performance. The unit provides high bandwidth and sensitivity to operate with long, dispersive fibers, plus wide dynamic range for operation over a variety

文件：84.26 Kbytes 页数：6 Pages

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