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STPMS2 - second-order sigma-delta modulator

General Description

The STPMS2 also called “smart sensor” device, is an ASSP designed for effective measurement in power line systems utilizing the Rogowski coil, current transformer and Hall or shunt sensors.

Key Features

  • VCC supply range 3.2 V to 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 standard specs for class 1, class 0.5 and class 0.2 AC watt meters.
  • STPMS2L-PUR: less than 0.5% error over 1:5000 range.
  • Precision voltage reference: 1.23 V with programmable TC.
  • Internal low drop regulator @ 3 V (typ. ) Applicat.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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STPMS2 Smart sensor II dual-channel 1-bit, 4 MHz, second-order sigmadelta modulator with embedded PGLNA Datasheet - production data Features  VCC supply range 3.2 V to 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 standard specs for class 1, class 0.5 and class 0.2 AC watt meters  STPMS2L-PUR: less than 0.5% error over 1:5000 range  Precision voltage reference: 1.23 V with programmable TC  Internal low drop regulator @ 3 V (typ.