Description
The device with the part number 778745-4220 is a high-performance, 2-channel data acquisition card that boasts a 16-Bit resolution, ensuring precise data capture across a wide range of applications. It offers an impressive maximum sample rate of 333 kS/s, enabling users to capture high-speed signals without losing fidelity.
It supports various bridge sensor configurations including Full-, Quarter-, and Half-Bridge, providing flexibility for different types of sensors and applications. The excitation voltage can be adjusted via software on Pins 2 and 7, allowing for easy setup and calibration of sensors directly from the software interface.
The device features a lowpass filter with a cutoff frequency that can be set to 10 or 100 Hz and 1 kHz or 10 kHz, which is software selectable. This, combined with a 4-pole Butterworth filter per channel, ensures that signals are accurately captured with minimal noise interference.
An external time base can be provided via the PXI Trigger Bus or an internal 20 MHz source. The PXI Trigger Bus includes 1 x Star Trigger and 6 x Trigger Lines, offering extensive options for synchronization in complex measurement systems.
The input impedance is exceptionally high at >1 GΩ DC, and the input bias current is minimized to ±20 nA max, reducing error and improving accuracy in measurements. This device is compatible with several software platforms, including NIDAQmx (Version 7.0 or Later), LabVIEW, LabWindows/CVI, and Measurement Studio, making it versatile for a wide range of applications and environments.
Its physical dimensions are 6.3 x 3.9 x 0.79 in., making it compact and suitable for integration into various systems without requiring much space. This device is designed to meet the needs of engineers and scientists who require high accuracy, flexibility, and performance in their data acquisition tasks.
| Specification | Details |
|---|---|
| Part Number | 778745-4220 |
| Channels | 2-Channel |
| Resolution | 16-Bit |
| Maximum Sample Rate | 333 kS/s |
| Bridge Sensor Support | Full-, Quarter-, and Half-Bridge |
| Excitation Voltage Adjustment | Software Adjustable on Pins 2 and 7 |
| Lowpass Filter Cutoff Frequency | 10 or 100 Hz and 1 kHz or 10 kHz (Software Selectable) |
| Filter Type | 4-pole Butterworth per Channel |
| Time Base | External via PXI Trigger Bus or Internal 20 MHz |
| PXI Trigger Bus | 1 x Star Trigger, 6 x Trigger Lines |
| Input Impedance | >1 GΩ DC |
| Input Bias Current | ±20 nA max |
| Software Compatibility | NIDAQmx (Version 7.0 or Later), LabVIEW, LabWindows/CVI, Measurement Studio |
| Physical Dimensions | 6.3 x 3.9 x 0.79 in. |
