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PGA305

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Signalumformer zur Widerstandsmessung mit digitalen und analogen Ausgängen

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Datenblatt

PGA305

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, I2C, OWI, Ratiometric analog voltage Resolution (Bits) 24 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, I2C, OWI, Ratiometric analog voltage Resolution (Bits) 24 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
    • 24-Bit Sigma-Delta Analog-to-Digital Converter for Signal Channel
    • 24-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 Offset, Gain, and Nonlinearity Temperature Compensation
    • Diagnostic Functions
    • Integrated EEPROM for Device Operation, Calibration Data and User Data
  • Peripheral Features
    • I2C interface for Data Reading and Device Configuration
    • One-Wire Interface Enables Communication Through the Power Supply Pin Without Using Additional Lines
    • 4-mA to 20-mA Current Loop Interface
    • Ratiometric and Absolute Voltage Output
    • Power Management Control
    • Analog Low-Voltage Detect
  • General Features
    • Industrial Temperature Range: –40°C to 150°C
    • Power Supply:
      • On-Chip Power Management Accepts Wide Power-Supply Voltage From 3.3 V to 30 V
      • Integrated Reverse-Protection Circuit
  • 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
    • 24-Bit Sigma-Delta Analog-to-Digital Converter for Signal Channel
    • 24-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 Offset, Gain, and Nonlinearity Temperature Compensation
    • Diagnostic Functions
    • Integrated EEPROM for Device Operation, Calibration Data and User Data
  • Peripheral Features
    • I2C interface for Data Reading and Device Configuration
    • One-Wire Interface Enables Communication Through the Power Supply Pin Without Using Additional Lines
    • 4-mA to 20-mA Current Loop Interface
    • Ratiometric and Absolute Voltage Output
    • Power Management Control
    • Analog Low-Voltage Detect
  • General Features
    • Industrial Temperature Range: –40°C to 150°C
    • Power Supply:
      • On-Chip Power Management Accepts Wide Power-Supply Voltage From 3.3 V to 30 V
      • Integrated Reverse-Protection Circuit

The PGA305 device supplies an interface for piezoresistive and strain-gauge pressure-sense elements. The device is a full system-on-chip (SoC) solution that includes programmable analog front end (AFE), ADC, and digital signal processing that enable direct connection to the sense element. The PGA305 device also includes integrated voltage regulators and an oscillator to minimize the number of external components. The PGA305 device can employ third-order temperature and nonlinearity compensation to achieve high accuracy. The device can also use the integrated I2C interface or the one-wire serial interface (OWI) to achieve external communication and simplify the system calibration process. An Integrated DAC supports absolute-voltage, ratiometric-voltage, and 4-mA to 20-mA current-loop outputs.

The PGA305 device supplies an interface for piezoresistive and strain-gauge pressure-sense elements. The device is a full system-on-chip (SoC) solution that includes programmable analog front end (AFE), ADC, and digital signal processing that enable direct connection to the sense element. The PGA305 device also includes integrated voltage regulators and an oscillator to minimize the number of external components. The PGA305 device can employ third-order temperature and nonlinearity compensation to achieve high accuracy. The device can also use the integrated I2C interface or the one-wire serial interface (OWI) to achieve external communication and 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 PGA305 Signal Conditioner and Transmitter for Pressure Sensors datasheet PDF | HTML 29 Aug 2017
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

Design und Entwicklung

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Evaluierungsplatine

PGA305EVM-034 — PGA305 Signalumformer zur Widerstandsmessung – Evaluierungsmodul

The PGA305 evaluation module (EVM) evaluates all the features of the PGA300 in either voltage mode or current mode. 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 (...)
Benutzerhandbuch: PDF
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GUI für Evaluierungsmodul (EVM)

SLDC018 — PGA305EVM GUI

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PGA305 — Signalumformer zur Widerstandsmessung mit digitalen und analogen Ausgängen
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PGA305EVM-034 — PGA305 Signalumformer zur Widerstandsmessung – Evaluierungsmodul
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