STPMS1 Datasheet - ST Microelectronics

STPMS1 Dual-channel sigma-delta modulator

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 si.

STPMS1 Features

* VCC supply range: 3.2 V - 5.5 V

* Two 1st order sigma-delta modulators

* Programmable chopper-stabilized low noise and low offset amplifier

* Supports 50-60 Hz AC watt meters

* Internal low-drop regulator at 3 V (typ.)

* Precision voltage reference: 1.23 V and 30 ppm/°C (ty

STPMS1_STMicroelectronics.pdf