PGA300

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PGA300 Signal Conditioner and Transmitter for Pressure Sensors

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Product details

Parameters

Operating temperature range (C) -40 to 150 Vs (Min) (V) 3.3 Vs (Max) (V) 30 Interface type OWI, Ratiometric Analog Voltage, 4-20mA Resolution (Bits) 16 Rating Catalog open-in-new Find other Signal conditioners

Package | Pins | Size

VQFN (RHH) 36 36 mm² 6 x 6 open-in-new Find other Signal conditioners

Features

  • 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

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Description

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

= Top documentation for this product selected by TI
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Type Title Date
* Datasheet PGA300 Signal Conditioner and Transmitter for Pressure Sensors datasheet (Rev. B) Jun. 19, 2020
Application notes Connecting PGA900 Instrumentation Amplifier to Resistive Bridge Sensor (Rev. A) May 23, 2019
User guides PGAxxxEVM-034 User’s Guide (Rev. B) Aug. 01, 2018
Application notes PGA900, PGA300 and PGA305 Use Case for HVAC Applications May 02, 2017
Application notes PGA900, PGA300 and PGA305 Use Case for the Pressure Transmitter Applications May 02, 2017
Application notes PGA900, PGA300 and PGA305 Use Case for Weight Scale (Load Cell) Applications May 01, 2017
User guides PGA300 GUI User's Guide Jun. 17, 2016
Technical articles SigCon Architect: The keys to your high-speed design Oct. 27, 2015
Application notes Analog Applications Journal 3Q 2015 Jul. 24, 2015
Application notes Design tips for a resistive-bridge pressure sensor in industrial process-control Jul. 24, 2015
Application notes System Noise Analysis of a Resistive Bridge Pressure Sensor Connected to the PGA Jul. 07, 2015
Application notes Understanding Open Loop Output Impedance of the PGA900 DAC Gain Amplifier (Rev. A) May 19, 2015
Application notes PGA900 as 4- to 20-mA Current Loop Transmitter May 07, 2015
Application notes Analog Applications Journal 2Q 2015 Apr. 28, 2015
Application notes Two-step calibration of sensor signal conditioners Apr. 28, 2015
Application notes Understanding Open Loop Gain of the PGA900 DAC Gain Amplifier Apr. 02, 2015
Application notes PGA900 DAC Output Stability Application Note Mar. 04, 2015
Technical articles Make signal conditioning easy with WEBENCH® Interface Designer Jan. 27, 2015
Technical articles Get Connected: Equalization Oct. 15, 2014
Technical articles One part for all: Multi-standard signal conditioners Mar. 07, 2014

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
199
Description
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 (...)
Features
  • Current mode evaluation
  • Voltage mode evaluation
  • OWI circuitry
  • This circuit design is tested and includes GUI and Getting Started guide

Software development

SUPPORT SOFTWARE Download
SLDC013B.ZIP (65270 KB)

Design tools & simulation

SIMULATION MODELS Download
SLDM004.ZIP (167 KB) - PSpice Model
SIMULATION MODELS Download
SLDM005.TSC (652 KB) - TINA-TI Reference Design
SIMULATION MODELS Download
SLDM006.ZIP (5 KB) - TINA-TI Spice Model
SIMULATION MODELS Download
SLDM007.TSC (509 KB) - TINA-TI Reference Design

Reference designs

REFERENCE DESIGNS Download
Industrial Current-Output Pressure Sensor Transmitter, IEC61000-4 Tested Reference Design
TIDA-00788 — The PGA300 is an all-in-one System on Chip (SoC) solution for Pressure Sensor Systems, utilizing a 3rd-order pressure and temperature compensation algorithm for linearization. The PGA300 also drives the 4- to 20-mA current loop, and provides the excitation voltage for the resistive bridge sensor (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
VQFN (RHH) 36 View options

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