Datasheet > STPMS2

STPMS2

更新时间： 2024-11-29 14:58:15

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		传感器
页数	文件大小	规格书
36页	1854K
描述
具有嵌入式PGA的智能传感器II双通道2阶ΣΔ调制器

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STPMS2 数据手册

STPMS2

Smart sensor II dual-channel 1-bit, 4 MHz, second-order sigma-

delta modulator with embedded PGLNA

Datasheet - production data

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.

This device is designed as a building block for

single-phase or multi-phase energy meters along

with the STPMC1 device, a digital signal

processor designed for energy measurement.

Features



V_CCsupply range 3.2 V to 5.5 V

Two second-order sigma-delta (ΣΔ)

modulators

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 is a mixed signal IC

consisting of an analog and digital section. The

analog section consists of a programmable gain,

low noise chopper amplifier, two second-order ΔΣ

modulator blocks, a bandgap voltage reference, a

low drop voltage regulator and DC buffers, while

the digital section consists of a clock generator

and output multiplexer.



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.)



Table 1: Device summary

Oder code

Package

Packing

4500

pieces per

reel

STPMS2L-PUR

QFN16 (4x4 mm)

Applications



Power metering

Motor control

Industrial process control

Weight scales

Pressure transducers

March 2016

DocID16525 Rev 5

1/36

www.st.com

This is information on a product in full production.

12 3 4 5 6 7...36

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