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STPMS2L-PUR Fiches technique(PDF) 1 Page - STMicroelectronics

No de pièce STPMS2L-PUR
Description  Smart sensor II dual-channel 1-bit, 4 MHz, second-order sigma-delta modulator with embedded PGLNA
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STPMS2L-PUR Fiches technique(HTML) 1 Page - STMicroelectronics

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October 2011
Doc ID 16525 Rev 3
1/33
33
STPMS2
Smart sensor II dual-channel 1-bit, 4 MHz,
second-order sigma-delta modulator with embedded PGLNA
Features
VCC supply range 3.2 V - 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 standards specs for class 1, class 0.5 and
class 0.2 AC watt meters
STPM02H: less than 0.5% error over 1:10000
range
STPM02L: less than 0.5% error over 1:5000
range
Precision voltage reference: 1.23 V with
programmable TC (STPMS2L only)
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” devices,
are ASSPs designed for effective measurement in
power line systems utilizing Rogowski coil, current
transformer, Hall or shunt sensors. These devices
are designed as building blocks 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 are mixed signal ICs consisting of an
analog and digital section. The analog section
consists of a programmable gain, low noise
choppered amplifier, two second-order
ΔΣ
modulator blocks, a band-gap voltage reference,
a low-drop voltage regulator and DC buffers, while
the digital section consists of a clock generator
and output multiplexer.
QFN16 (4 x 4)
Table 1.
Device summary
Order codes
Package
Packaging
STPMS2H-PUR
QFN16 (4 x 4 mm)
4500 parts per reel
STPMS2L-PUR
QFN16 (4 x 4 mm)
4500 parts per reel
www.st.com


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