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PGA300

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PGA300 – Signalumformer und Transmitter für Drucksensoren

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PGA300

AKTIV
Datenblatt Jetzt bestellen

Produktdetails

Number of input channels 2 Operating temperature range (°C) -40 to 150 Vs (min) (V) 3.3 Vs (max) (V) 30 Interface type 4-20mA, OWI, Ratiometric analog voltage Resolution (Bits) 16 Rating Military
Number of input channels 2 Operating temperature range (°C) -40 to 150 Vs (min) (V) 3.3 Vs (max) (V) 30 Interface type 4-20mA, OWI, Ratiometric analog voltage Resolution (Bits) 16 Rating Military
VQFN (RHH) 36 36 mm² 6 x 6
  • Analog features:
    • Analog front-end for resistive bridge sensors
    • Accommodates sensor sensitivities from 1 mV/V to 135 mV/V
    • On-chip temperature sensor
    • Programmable gain
    • 16-bit sigma-delta analog-to-digital converter for signal channel
    • 16-bit sigma-delta analog-to-digital converter for temperature channel
    • 14-bit output DAC
  • Digital Features:
    • <0.1% FSO accuracy across temperature
    • System response time <220 µs
    • Third-order temperature and nonlinearity compensation
    • Diagnostic functions
    • Integrated EEPROM for device operation, calibration data, and user data
  • Peripheral features:
    • One-wire interface enables communication through the power-supply pin
    • 4-mA to 20-mA current-loop output
    • Ratiometric and absolute voltage output
  • Power supply:
    • On-chip power management accepts wide power-supply voltage from 3.3 V to 30 V
    • Integrated reverse voltage protection circuit
  • Industrial temperature range: –40°C to +150°C
  • Analog features:
    • Analog front-end for resistive bridge sensors
    • Accommodates sensor sensitivities from 1 mV/V to 135 mV/V
    • On-chip temperature sensor
    • Programmable gain
    • 16-bit sigma-delta analog-to-digital converter for signal channel
    • 16-bit sigma-delta analog-to-digital converter for temperature channel
    • 14-bit output DAC
  • Digital Features:
    • <0.1% FSO accuracy across temperature
    • System response time <220 µs
    • Third-order temperature and nonlinearity compensation
    • Diagnostic functions
    • Integrated EEPROM for device operation, calibration data, and user data
  • Peripheral features:
    • One-wire interface enables communication through the power-supply pin
    • 4-mA to 20-mA current-loop output
    • Ratiometric and absolute voltage output
  • Power supply:
    • On-chip power management accepts wide power-supply voltage from 3.3 V to 30 V
    • Integrated reverse voltage protection circuit
  • Industrial temperature range: –40°C to +150°C

The PGA300 provides an interface for piezoresistive and strain-gauge pressure-sense elements. The device is a full system-on-chip (SoC) solution that incorporates a programmable analog front-end (AFE), ADC, and digital signal processing that enable direct connection to the sense element. Further, the PGA300 includes integrated voltage regulators and an oscillator, thus minimizing the number of external components. The device achieves high accuracy by employing third-order temperature and nonlinearity compensation. External communication is achieved by using a one-wire serial interface (OWI) through the power-supply pin in order to simplify the system calibration process. An Integrated DAC supports absolute-voltage, ratiometric-voltage, and 4-mA to
20-mA current-loop outputs.

The PGA300 provides an interface for piezoresistive and strain-gauge pressure-sense elements. The device is a full system-on-chip (SoC) solution that incorporates a programmable analog front-end (AFE), ADC, and digital signal processing that enable direct connection to the sense element. Further, the PGA300 includes integrated voltage regulators and an oscillator, thus minimizing the number of external components. The device achieves high accuracy by employing third-order temperature and nonlinearity compensation. External communication is achieved by using a one-wire serial interface (OWI) through the power-supply pin in order to simplify the system calibration process. An Integrated DAC supports absolute-voltage, ratiometric-voltage, and 4-mA to
20-mA current-loop outputs.
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Technische Dokumentation

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Typ Titel Datum
* Data sheet PGA300 Signal Conditioner and Transmitter for Pressure Sensors datasheet (Rev. B) PDF | HTML 19 Jun 2020
Application note Connecting PGA900 Instrumentation Amplifier to Resistive Bridge Sensor (Rev. A) 23 Mai 2019
EVM User's guide PGAxxxEVM-034 User’s Guide (Rev. B) 01 Aug 2018
Application brief PGA900, PGA300 and PGA305 Use Case for HVAC Applications 02 Mai 2017
Application brief PGA900, PGA300 and PGA305 Use Case for the Pressure Transmitter Applications 02 Mai 2017
Application brief PGA900, PGA300 and PGA305 Use Case for Weight Scale (Load Cell) Applications 01 Mai 2017
User guide PGA300 GUI User's Guide 17 Jun 2016
Analog Design Journal Analog Applications Journal 3Q 2015 24 Jul 2015
Analog Design Journal Design tips for a resistive-bridge pressure sensor in industrial process-control 24 Jul 2015
Application note System Noise Analysis of a Resistive Bridge Pressure Sensor Connected to the PGA 07 Jul 2015
Application note Understanding Open Loop Output Impedance of the PGA900 DAC Gain Amplifier (Rev. A) 19 Mai 2015
Application note PGA900 as 4- to 20-mA Current Loop Transmitter 07 Mai 2015
Analog Design Journal Analog Applications Journal 2Q 2015 28 Apr 2015
Analog Design Journal Two-step calibration of sensor signal conditioners 28 Apr 2015
Application note Understanding Open Loop Gain of the PGA900 DAC Gain Amplifier 02 Apr 2015
Application note PGA900 DAC Output Stability Application Note 04 Mär 2015

Design und Entwicklung

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Evaluierungsplatine

PGA300EVM-034 — PGA300 Drucksensor-Signalaufbereiter – EVM

The PGA300EVM allows evaluating all the features of the PGA300 in either voltage mode or current mode. The PGA300EVM has a resistive bridge on board with a potentiometer allowing for differential input voltages to be adjusted by the user to emulate a pressure sense element. The EVM also includes (...)
Benutzerhandbuch: PDF
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GUI für Evaluierungsmodul (EVM)

SLDC013 — PGA300 GUI

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PGA300 — PGA300 – Signalumformer und Transmitter für Drucksensoren
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Evaluierungsplatine
PGA300EVM-034 — PGA300 Drucksensor-Signalaufbereiter – EVM
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Simulationsmodell

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SLDM004.ZIP (167 KB) - PSpice Model
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PGA900 TINA-TI Reference Design, Current Mode

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Simulationsmodell

PGA900 TINA-TI Reference Design, Voltage Mode

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Simulationsmodell

PGA900 TINA-TI Spice Model

SLDM006.ZIP (5 KB) - TINA-TI Spice Model
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Referenzdesigns

TIDA-00788 — Industrieller Druckmessumformer mit Stromausgang, IEC61000-4-geprüft – Referenzdesign

The PGA300 is an all-in-one System on Chip (SoC) for pressure sensor systems, utilizing a third-order pressure and temperature compensation algorithm for linearization. PGA300 also drives the 4- to 20-mA current loop and provides the excitation voltage for the resistive bridge sensor. Due to (...)
Design guide: PDF
Schaltplan: PDF
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