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STPMS2L-PUR Fiches technique(PDF) 1 Page - STMicroelectronics |
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STPMS2L-PUR Fiches technique(HTML) 1 Page - STMicroelectronics |
1 / 33 page October 2011 Doc ID 16525 Rev 3 1/33 33 STPMS2 Smart sensor II dual-channel 1-bit, 4 MHz, second-order sigma-delta modulator with embedded PGLNA Features ■ VCC supply range 3.2 V - 5.5 V ■ Two second-order sigma-delta (ΣΔ) modulators ■ Programmable chopper-stabilized low noise and low offset amplifier ■ Supports 50-60 Hz, EN 50470-1, EN 50470-3, IEC 62053-21, IEC 62053-22 and IEC 62053- 23 standards specs for class 1, class 0.5 and class 0.2 AC watt meters ■ STPM02H: less than 0.5% error over 1:10000 range ■ STPM02L: less than 0.5% error over 1:5000 range ■ Precision voltage reference: 1.23 V with programmable TC (STPMS2L only) ■ Internal low drop regulator @ 3 V (typ.) Applications ■ Power metering ■ Motor control ■ Industrial process control ■ Weight scales ■ Pressure transducers Description The STPMS2, also called “smart sensor” devices, are ASSPs designed for effective measurement in power line systems utilizing Rogowski coil, current transformer, Hall or shunt sensors. These devices are designed as building blocks for single-phase or multi-phase energy meters along with the STPMC1 device, a digital signal processor designed for energy measurement. This device can be used in medium and high resolution measurement applications where single or double inputs must be monitored at the same time. The STPMS2 are mixed signal ICs consisting of an analog and digital section. The analog section consists of a programmable gain, low noise choppered amplifier, two second-order ΔΣ modulator blocks, a band-gap voltage reference, a low-drop voltage regulator and DC buffers, while the digital section consists of a clock generator and output multiplexer. QFN16 (4 x 4) Table 1. Device summary Order codes Package Packaging STPMS2H-PUR QFN16 (4 x 4 mm) 4500 parts per reel STPMS2L-PUR QFN16 (4 x 4 mm) 4500 parts per reel www.st.com |
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