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PGA300

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PGA300 Signal Conditioner and Transmitter for Pressure Sensors

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Data sheet

PGA300

ACTIVE
Data sheet Order now

Product details

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 mm × 6 mm)
  • Analog features:
    • Analog front-end for resistive bridge sensors
    • Accommodates sensor sensitivities from 1mV/V to 135mV/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: <220µs
    • 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
    • Current-loop output: 4mA to 20mA
    • Ratiometric and absolute voltage output
  • Power supply:
    • On-chip power management accepts wide power-supply voltage from 3.3V to 30V
    • 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 1mV/V to 135mV/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: <220µs
    • 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
    • Current-loop output: 4mA to 20mA
    • Ratiometric and absolute voltage output
  • Power supply:
    • On-chip power management accepts wide power-supply voltage from 3.3V to 30V
    • 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 to simplify the system calibration process. An Integrated DAC supports absolute-voltage, ratiometric-voltage, and 4mA to 20mA 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 to simplify the system calibration process. An Integrated DAC supports absolute-voltage, ratiometric-voltage, and 4mA to 20mA current-loop outputs.
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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet PGA300 Signal Conditioner and Transmitter for Pressure Sensors datasheet (Rev. D) PDF | HTML Feb 18, 2025
Application note Connecting PGA900 Instrumentation Amplifier to Resistive Bridge Sensor (Rev. A) May 23, 2019
Application brief PGA900, PGA300 and PGA305 Use Case for the Pressure Transmitter Applications May 2, 2017
Application brief PGA900, PGA300 and PGA305 Use Case for HVAC Applications May 2, 2017
Application brief PGA900, PGA300 and PGA305 Use Case for Weight Scale (Load Cell) Applications May 1, 2017
User guide PGA300 GUI User's Guide Jun 17, 2016
Analog design Journal Analog Applications Journal 3Q 2015 Jul 24, 2015
Analog design Journal Design tips for a resistive-bridge pressure sensor in industrial process-control Jul 24, 2015
Application note System Noise Analysis of a Resistive Bridge Pressure Sensor Connected to the PGA Jul 7, 2015
Application note Understanding Open Loop Output Impedance of the PGA900 DAC Gain Amplifier (Rev. A) May 19, 2015
Application note PGA900 as 4- to 20-mA Current Loop Transmitter May 7, 2015
Analog design Journal Analog Applications Journal 2Q 2015 Apr 28, 2015
Analog design Journal Two-step calibration of sensor signal conditioners Apr 28, 2015
Application note Understanding Open Loop Gain of the PGA900 DAC Gain Amplifier Apr 2, 2015
Application note PGA900 DAC Output Stability Application Note Mar 4, 2015

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Simulation model

PGA900 PSpice Model

SLDM004.ZIP (167 KB) - PSpice model
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Simulation model

PGA900 TINA-TI Reference Design, Current Mode

SLDM005.TSC (652 KB) - TINA-TI reference design
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Simulation model

PGA900 TINA-TI Reference Design, Voltage Mode

SLDM007.TSC (509 KB) - TINA-TI reference design
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Simulation model

PGA900 TINA-TI Spice Model

SLDM006.ZIP (5 KB) - TINA-TI Spice model
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Calculation tool

PGA3XX-COEFF-CALC — Temperature and nonlinearity coefficient calculator for the PGA300 and PGA305

Design calculator for computing EEPROM coefficients
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Reference design

TIDA-00788 — Industrial Current-Output Pressure Sensor Transmitter, IEC61000-4 Tested Reference Design

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 (...)
Supported products & hardware
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VQFN (RHH) 36 Ultra Librarian
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