Product Overview
The NPA Low Pressure Series is a cost-effective solution for applications requiring calibrated performance in a miniature size. These surface-mountable pressure sensors are designed for printed circuit board mounting and are delivered in tape and reel form for simplified manufacturing handling. Available in Gauge or Differential pressure ranges, the NPA series offers amplified analog or digital serial (14-bit) and I2C outputs. Key features include an on-chip temperature sensor in digital mode and an operating temperature range of -40 to 125C. The series is suitable for applications requiring accurate low-pressure measurement.
Product Attributes
- Brand: Amphenol Advanced Sensors (NovaSensor)
- Package: SOIC14 pin surface mount
- Media Compatibility: Positive differential and gauge ports compatible with thermoset plastic, silicon, epoxy, RTV, Pyrex, and silicone gel. Negative differential ports for dry gasses only.
- Leadframe Material: Alloy 194, NiPdAu
- RoHS Compliance: RoHS:2010 compliant
- Warranty: 12 months from the date of shipment
Technical Specifications
| Specification | Value | Units | Notes |
|---|---|---|---|
| Pressure Range | 2 or 5 | In H2O | 498 or 1245 Pa |
| Maximum Overpressure | 140 | In H2O | Package Overpressure |
| Input Excitation | 3.3 or 5.0 | VDC | Electrical @ 25C unless otherwise stated |
| Operating Temperature Range | -40 to +125 | C | -40 to +257F |
| Compensated Temperature Range | 0 to +60 | C | +32 to +140F |
| Storage Temperature Range | -40 to +125 | C | -40 to +257F |
| Total Error Band (Accuracy) | +/-1.5 | % Span | 5H2O Full Scale |
| Total Error Band (Accuracy) | +/-2.5 | % Span | 2H2O Full Scale |
| Response Time | 2 | ms | 0.5 ms Typical |
| Typical Current Consumption | 1.2 | mA | Typical |
| Weight | ~1 | grams | |
| Series Excitation Voltage (NPA-300) | 3.3 | VDC | NPA amplified analog |
| Series Excitation Voltage (NPA-500) | 5.0 | VDC | NPA amplified analog |
| Series Excitation Voltage (NPA-730) | 3.3 | VDC | NPA digital I2C |
| Series Excitation Voltage (NPA-700) | 5.0 | VDC | NPA digital I2C |
| Analog Offset (5V Excitation, 2H2O) | 0.40 - 0.60 | Volts | |
| Analog Span (5V Excitation, 2H2O) | 4 | Volts | |
| Analog Offset (5V Excitation, 5H2O) | 0.44 - 0.56 | Volts | |
| Analog Span (5V Excitation, 5H2O) | 4 | Volts | |
| Analog Offset (3.3V Excitation, 2H2O) | 0.44 - 0.56 | Volts | |
| Analog Span (3.3V Excitation, 2H2O) | 2.5 | Volts | |
| Analog Offset (3.3V Excitation, 5H2O) | 0.46 - 0.54 | Volts | |
| Analog Span (3.3V Excitation, 5H2O) | 2.5 | Volts | |
| Digital Resolution (ADC) | 14 | bit | 16383 steps |
| I2C Slave Address | 0x28 | ||
| Sampling Rate | 2 | kHz | |
| I2C Bit Rate | 100 - 400 | kbits/s | |
| Digital Offset (3.3/5V Excitation, 2H2O) | 1311 - 1966 | Counts | |
| Digital Span (3.3/5V Excitation, 2H2O) | 13106 | Counts | |
| Digital Offset (3.3/5V Excitation, 5H2O) | 1442 - 1835 | Counts | |
| Digital Span (3.3/5V Excitation, 5H2O) | 13106 | Counts | |
| Model NPA-300 | Analog Amplified Output, 3.3Vdc Excitation, Calibrated sensor | ||
| Model NPA-500 | Analog Amplified Output, 5Vdc Excitation, Calibrated sensor | ||
| Model NPA-700 | I2C - Digital output, Calibrated Sensor, 2 byte, 5Vdc Excitation | ||
| Model NPA-730 | I2C - Digital output, Calibrated Sensor, 2 byte, 3.3Vdc Excitation | ||
| Port Type Code B | 2 barbed ports for Gauge and Differential pressure types | Recommended tubing size of 3/32 ID, 7/32 OD, 1/16 wall thickness | |
| Pressure Range Code 02W | 2H2O (0.5 KPa) | ||
| Pressure Range Code 05W | 5H2O (1.24 KPa) | ||
| Pressure Type Code G | Gauge | ||
| Pressure Type Code D | Differential |
2411200036_Amphenol-NPA-730B-05WD_C6721166.pdf
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