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PGA300

現行

適用於壓力感測器的 PGA300 訊號調節器和發射器

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產品規格表

PGA300

現行
產品規格表 立即訂購

產品詳細資料

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 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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類型 標題 日期
* Data sheet PGA300 Signal Conditioner and Transmitter for Pressure Sensors datasheet PDF | HTML 2024年 8月 14日
Application note Connecting PGA900 Instrumentation Amplifier to Resistive Bridge Sensor (Rev. A) 2019年 5月 23日
Application brief PGA900, PGA300 and PGA305 Use Case for HVAC Applications 2017年 5月 2日
Application brief PGA900, PGA300 and PGA305 Use Case for the Pressure Transmitter Applications 2017年 5月 2日
Application brief PGA900, PGA300 and PGA305 Use Case for Weight Scale (Load Cell) Applications 2017年 5月 1日
User guide PGA300 GUI User's Guide 2016年 6月 17日
Analog Design Journal Analog Applications Journal 3Q 2015 2015年 7月 24日
Analog Design Journal Design tips for a resistive-bridge pressure sensor in industrial process-control 2015年 7月 24日
Application note System Noise Analysis of a Resistive Bridge Pressure Sensor Connected to the PGA 2015年 7月 7日
Application note Understanding Open Loop Output Impedance of the PGA900 DAC Gain Amplifier (Rev. A) 2015年 5月 19日
Application note PGA900 as 4- to 20-mA Current Loop Transmitter 2015年 5月 7日
Analog Design Journal Analog Applications Journal 2Q 2015 2015年 4月 28日
Analog Design Journal Two-step calibration of sensor signal conditioners 2015年 4月 28日
Application note Understanding Open Loop Gain of the PGA900 DAC Gain Amplifier 2015年 4月 2日
Application note PGA900 DAC Output Stability Application Note 2015年 3月 4日

設計與開發

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模擬型號

PGA900 PSpice Model

SLDM004.ZIP (167 KB) - PSpice Model
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模擬型號

PGA900 TINA-TI Reference Design, Current Mode

SLDM005.TSC (652 KB) - TINA-TI Reference Design
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模擬型號

PGA900 TINA-TI Reference Design, Voltage Mode

SLDM007.TSC (509 KB) - TINA-TI Reference Design
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模擬型號

PGA900 TINA-TI Spice Model

SLDM006.ZIP (5 KB) - TINA-TI Spice Model
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參考設計

TIDA-00788 — 通過 IEC61000-4 測試的工業電流輸出壓力感測器發送器參考設計

PGA300 是一款用於壓力感測器系統的一體化系統單晶片 (SoC)，利用三階壓力和溫度補償演算法進行線性化。PGA300 也會驅動 4 至 20-mA 電流迴路，並為電阻橋感測器提供激磁電壓。由於高度整合的 PGA300，此參考設計可將壓力感測器發送器的一般元件數量和電路板尺寸降到最低，同時還兼顧了準確度與性能。此設計也包含適用業界標準 IEC61000-4 EMC 與 EMI 測試套件的典型保護電路。
Design guide: PDF
電路圖: PDF
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VQFN (RHH) 36 Ultra Librarian
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