ST STPMS1智能传感器解决方案

ST公司的STPMS1是嵌入PGA的双路1位2MHz1阶Sigma0Delta调制器,也称为智能传感器. STPMS1是混合信号器件,包括了模拟和数字部分, 模拟部分包括前置放大器和连个1阶Sigma0Delta调制器区块,能带隙基准电压,低压降稳压器和DC缓冲器;而数字部分包括时钟发生器和输出复接器.器件具有中等分辨率.VCC电源3.2V-5.5V,支持50-60Hz 交流电表,主要应用在电表,马达控制,工业过程控制,衡器和压力传感器.本文介绍了STPMS1主要特性,方框图, 应用电路图, 电表应用电路图和基于DSP的应用框图,以及多相演示板STEVAL-IPE010V1方框图,主板和子板电路图和相应的材料清单(BOM).

STPMS1: Dual-channel 1-bit, 2 MHz, 1st order sigma-delta modulator with embedded PGA

The STPMS1, also called a smart-sensor device, is an ASSP designed for effective measurement in power line systems utilizing the Rogowski coil, current transformer, or shunt principle. It is used in combination with the STPMC1 programmable poly-phase energy calculator IC, as a building block for single-phase or poly-phase energy meters. The STPMS1 is a mixed signal IC consisting of an analog and a digital section. The analog section consists of a pre-amplifier and two 1st order ΣΔ modulator blocks, band-gap voltage reference, a low-drop voltage regulator, and DC buffers, while the digital section consists of a clock generator and output multiplexer. This device is designed for use in medium resolution

STPMS1主要特性:

■ VCC supply range: 3.2 V - 5.5 V
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