The NPA Series of Surface-Mount Pressure Sensors offers a cost-effective solution for applications requiring calibrated performance in a miniature size. These sensors are designed for printed circuit board mounting and are delivered in tape and reel form for simplified manufacturing. Available in gauge, absolute, and differential pressure ranges, the NPA Series supports various output options including amplified analog, digital serial (14-bit), digital I2C, and uncalibrated mV. An on-chip temperature sensor is included in digital modes. The sensors are suitable for a wide operating temperature range of -40C to 125C and feature a total error band of less than 1.5% FSO.
| Parameter | Value | Units | Notes |
| General NPA Specifications |
| Operating Temperature Range | -40 to +125 | C | -40 to +257F |
| Compensated Temperature Range | 0 to 60 | C | +32 to +157F |
| Storage Temperature Range | -40 to +125 | C | -40 to +257F |
| Weight | ~1 | grams | |
| Media Compatibility (Negative differential ports) | Dry gases only |
| Common Parameters | | | |
| Accuracy (Total Error Band) | -1.5 to 1.5 | %FSO | |
| Proof Pressure (10H2O to 1 psi) | 5 | psi | |
| Proof Pressure (5 psi to 30 psi) | 60 | psi | |
| Maximum Package Pressure | 60 | psi | |
| Pressure Ranges | 10 H2O to 30 psi | | |
| Excitation Voltage |
| NPA-100 (Uncompensated, mV) | 1.5 | mA | |
| NPA-300 (Compensated, low power amplified analog) | 3.135 to 3.465 | V | @ 3.3V |
| NPA-500 (Compensated, amplified analog) | 4.75 to 5.25 | V | @ 5.0V |
| NPA-600 (Compensated, digital serial) | 4.75 to 5.25 | V | @ 5.0V |
| NPA-700 (Compensated, digital I2C) | 4.75 to 5.25 | V | @ 5.0V |
| NPA-730 (Compensated, digital I2C) | 3.135 to 3.465 | V | @ 3.3V |
| Analog Performance Parameters (5 volt Excitation) |
| Offset | 0.44 to 0.56 | Volts | |
| Span (Absolute/Gauge) | 4 | Volts | |
| Analog Performance Parameters (3.3 volt Excitation) |
| Offset | 0.46 to 0.54 | Volts | |
| Span (Absolute/Gauge) | 2.5 | Volts | |
| Digital Performance (Serial/I2C) |
| Resolution (ADC) | 14 | bit | 16383 steps |
| Sampling Rate (Serial) | | kHz | 1 |
| Sampling Rate (I2C) | | kHz | 2 |
| I2C Bit Rate | 100 to 400 | kbits/s | |
| I2C Slave Address | 0x28 | | |
| Uncalibrated mV Performance |
| Pressure Range (10H2O to 1 psi) | 0.36 to 1 | psi | 10H2O = 2.5KPa |
| Pressure Range (5 psi to 30 psi) | 5 to 30 | psi | |
| Excitation (10H2O to 1 psi) | 1.5 | mA | 10 VDC Maximum |
| Excitation (5 psi to 30 psi) | 1.0 | mA | 10 VDC Maximum |
| Zero Offset | 75 | mV | |
| Full Scale Output (10H20) | 40 to 120 | mV | |
| Full Scale Output (1 psi) | 75 to 135 | mV | |
| Full Scale Output (5 psi to 30 psi) | 100 to 166 | mV | |
| Linearity | 0.25 | %FSO | BFSL |
| Pressure Hysteresis | 0.20 | %FSO | (10H2O to 1 psi) |
| Pressure Hysteresis | 0.15 | %FSO | (5 psi to 30 psi) |
| Temperature Coefficient of Zero | 30 | V/ V / C | |
| Temperature Coefficient of Resistance | 0.29 to 0.38 | % /C | |
| Temperature Coefficient of Sensitivity | -0.2 | %FSO/C | (10H2O to 1 psi) |
| Temperature Coefficient of Sensitivity | -0.19 | %FSO/C | (5 psi to 30 psi) |
| Thermal Hysteresis of Zero | 0.15 | %FSO | (10H2O to 1 psi) |
| Thermal Hysteresis of Zero | 0.2 | %FSO | (5 psi to 30 psi) |
| Position Sensitivity | 0.2 | %FSO | (10H2O to 1 psi) |
| Position Sensitivity | N/A | %FSO | (5 psi to 30 psi) |
| Packaging & Quantity |
| Qty/Tube | 42 | Units | Dual/Single Barb, Manifold, No Port |
| Qty/Reel | 300 | Units | Barb Port |
| Qty/Reel | 448 | Units | Manifold |
| Qty/Reel | 896 | Units | No Port |
| Qty/Carton | 1800 | Units | Barb Port |
| Qty/Carton | 2688 | Units | Manifold |
| Qty/Carton | 5376 | Units | No Port |
| Model Code | Description |
| 100 | mV Output, Ratiometric Uncalibrated Sensor |
| 300 | Analog Amplified Output, 3.3Vdc Excitation, Calibrated Sensor |
| 500 | Analog Amplified Output, 5Vdc Excitation, Calibrated Sensor |
| 600 | Zacwire Digital Serial Output, Calibrated Sensor, 2 byte |
| 601 | Zacwire Digital Serial Output, Calibrated Sensor, 3 byte |
| 700 | I2C - Digital Output, 5Vdc Excitation, Calibrated Sensor, 2 byte |
| 730 | I2C - Digital Output, 3.3Vdc Excitation, Calibrated Sensor, 2 byte |