STPMS1 datasheet(1/23 Pages) STMICROELECTRONICS

部件名	STPMS1

功能描述	Dual-channel 1-bit, 2 MHz, 1st order Dual-channel 1-bit, 2 MHz, 1st order

PDF	23 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

1 / 23 page

October 2010

Doc ID 16524 Rev 2

1/23

23

STPMS1

Dual-channel 1-bit, 2 MHz, 1st order

sigma-delta modulator with embedded PGA

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 (typ.)

Applications

■ 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

1st 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

measurement applications when single or double

inputs must be monitored at the same time.

QFN16 (3 x 3 mm.)

Table 1.

Device summary

Order code

Package

Packaging

STPMS1BPQR

QFN16 (3 x 3 mm)

2500 parts per reel

www.st.com

类似零件编号 - STPMS1

制造商	部件名	数据表	功能描述
STMicroelectronics	STPMS1	695Kb / 23P	Dual-channel 1-bit, 2 MHz, 1st order sigma-delta modulator with embedded PGA 07-Oct-2010

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