封裝資訊
| 封裝 | 針腳 VQFN (RHH) | 36 |
| 操作溫度範圍 (°C) -40 to 150 |
| 包裝數量 | 運送業者 2,500 | LARGE T&R |
PGA300 的特色
- 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
PGA300 的說明
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.