Datasheet > STPMS1

STPMS1

更新时间： 2024-11-28 12:23:07

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		/
页数	文件大小	规格书
23页	695K
描述
Dual-channel 1-bit, 2 MHz, 1st order sigma-delta modulator with embedded PGA

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STPMS1 数据手册

STPMS1

Dual-channel 1-bit, 2 MHz, 1^storder

sigma-delta modulator with embedded PGA

Features

■ V

supply range: 3.2 V - 5.5 V

■ Two 1 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

QFN16 (3 x 3 mm.)

ppm/°C (typ.)

Applications

measurement applications when single or double

inputs must be monitored at the same time.

■ Power metering

■ Motor control

■ Industrial process control

■ Weight scale

■ Pressure transducers

Description

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

1 order 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

Table 1.

Device summary

Order code

Package

Packaging

STPMS1BPQR

QFN16 (3 x 3 mm)

Doc ID 16524 Rev 2

2500 parts per reel

October 2010

1/23

www.st.com

12 3 4 5 6 7...23

中文翻译

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