Smart sensor Dual channel 1st order ΣΔ modulator with embedded PGA

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  • 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 1storder 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 measurement applications when single or double inputs must be monitored at the same time.

    Key Features

    • VCCsupply 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 (typ.)

Circuit Diagram

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Part Number
Package
Packing Type
Temperature (°C) Autoshutdown
Marketing Status
Budgetary Price (US$)*
Quantity
More info
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min
max
STPMS1BPQR VFQFPN 16 3x3x0.9 Tape And Reel - - -
Active
1.135 1000
MORE INFO

ECCN (US):

EAR99

Country of Origin:

MALAYSIA

No availability of distributors reported, please contact our sales office

STPMS1BPQR

Package

VFQFPN 16 3x3x0.9

Packing Type

Tape And Reel

Unit Price (US$)

1.135*

Operating Temperature (°C)

(min)

-

(max)

-

Autoshutdown

-

Marketing Status

Active

Unit Price (US$)

1.135

Quantity

1000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

Evaluation Tools

    • Part Number

      IEC 61334-5-1 compliant smart meter system for AMI application based on STM32, ST7570 PLM and STPMC1/STPMS1 chipset

00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DS6545
      Dual-channel 1-bit, 2 MHz, 1st order sigma-delta modulator with embedded PGA
      2.1
      707.48 KB
      PDF
      DS6545

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

Presentations & Training Material

    • Description Version Size Action
      ST products and solutions for solar energy 5.1
      2.09 MB
      PDF

      ST products and solutions for solar energy

Publications and Collaterals

    • Description Version Size Action
      Electric vehicle (EV) ecosystem 1.1
      1.28 MB
      PDF
      Smart grid distribution and smart meters - Energy-efficient solutions 2.0
      1.58 MB
      PDF

      Electric vehicle (EV) ecosystem

      Smart grid distribution and smart meters - Energy-efficient solutions

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STPMS1BPQR
Active
VFQFPN 16 3x3x0.9 Industrial Ecopack2

STPMS1BPQR

Package:

VFQFPN 16 3x3x0.9

Material Declaration**:

Marketing Status

Active

Package

VFQFPN 16 3x3x0.9

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.