STPMS2 datasheet(1/36 Pages) STMICROELECTRONICS

部件名	STPMS2

功能描述	Programmable chopper-stabilized low noise and low offset amplifier

PDF	36 Pages

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制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

1 / 36 page

March 2016

DocID16525 Rev 5

1/36

This is information on a product in full production.

www.st.com

STPMS2

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

delta 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.)

Applications



Power metering



Motor control



Industrial process control



Weight scales



Pressure transducers

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.

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.

Table 1: Device summary

Oder code

Package

Packing

STPMS2L-PUR

QFN16 (4x4 mm)

4500

pieces per

reel

类似零件编号 - STPMS2

制造商	部件名	数据表	功能描述
STMicroelectronics	STPMS2H-PUR	2Mb / 33P	Smart sensor II dual-channel 1-bit, 4 MHz, second-order sigma-delta modulator with embedded PGLNA 11-Oct-2011
STMicroelectronics	STPMS2L-PUR	2Mb / 33P	Smart sensor II dual-channel 1-bit, 4 MHz, second-order sigma-delta modulator with embedded PGLNA 11-Oct-2011

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