PGA300
- 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.
技術文件
設計與開發
如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。
PGA3XX-COEFF-CALC — Temperature and nonlinearity coefficient calculator for the PGA300 and PGA305
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
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VQFN (RHH) | 36 | Ultra Librarian |
訂購與品質
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。