Gehäuseinformationen
| Gehäuse | Pins VQFN (RHH) | 36 |
| Betriebstemperaturbereich (°C) -40 to 150 |
| Gehäusemenge | Träger 2.500 | LARGE T&R |
Merkmale von PGA300
- 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
Beschreibung von PGA300
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.