Product details

Operating temperature range (C) -40 to 150 Vs (Min) (V) 3.3 Interface type OWI, Ratiometric Analog Voltage, 4-20mA Vs (Max) (V) 30 Resolution (Bits) 16 Rating Military
Operating temperature range (C) -40 to 150 Vs (Min) (V) 3.3 Interface type OWI, Ratiometric Analog Voltage, 4-20mA Vs (Max) (V) 30 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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Technical documentation

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Type Title Date
* Data sheet PGA300 Signal Conditioner and Transmitter for Pressure Sensors datasheet (Rev. B) 19 Jun 2020
Application note Connecting PGA900 Instrumentation Amplifier to Resistive Bridge Sensor (Rev. A) 23 May 2019
User guide PGAxxxEVM-034 User’s Guide (Rev. B) 01 Aug 2018
Application note PGA900, PGA300 and PGA305 Use Case for HVAC Applications 02 May 2017
Application note PGA900, PGA300 and PGA305 Use Case for the Pressure Transmitter Applications 02 May 2017
Application note PGA900, PGA300 and PGA305 Use Case for Weight Scale (Load Cell) Applications 01 May 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 May 2015
Application note PGA900 as 4- to 20-mA Current Loop Transmitter 07 May 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 Mar 2015
Technical article Get Connected: A new blog series 10 Jan 2014

Design & development

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

Evaluation board

PGA300EVM-034 — PGA300 Pressure Sensor Signal Conditioner 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 (...)
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Support software

PGA300 GUI (Rev. B)

SLDC013B.ZIP (65270 KB)
Simulation model

PGA900 PSpice Model

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

PGA900 TINA-TI Reference Design, Current Mode

SLDM005.TSC (652 KB) - TINA-TI Reference Design
Simulation model

PGA900 TINA-TI Spice Model

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

PGA900 TINA-TI Reference Design, Voltage Mode

SLDM007.TSC (509 KB) - TINA-TI Reference Design
Reference designs

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 (...)
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VQFN (RHH) 36 View options

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