Description
The National Instruments PXI-7842 is a multifunction reconfigurable I/O module identified by part number 780338-01, which incorporates an onboard FPGA, the Virtex-5 LX50, for advanced data acquisition and signal processing capabilities. This module features 8 analog input (AI) channels with a 16-bit input resolution and a successive approximation ADC type, achieving a rapid A/D conversion time of 4 µs and a maximum sampling rate of 200 kS/s, while offering a small signal bandwidth of 1 MHz.
Furthermore, the PXI-7842 provides 8 analog output (AO) channels at 16-bit resolution, which are single-ended with a voltage output and support a substantial maximum update rate of 1 MS/s within a voltage range of +10V. With its 96 digital I/O (DIO) channels, the module caters to various logic levels, including 3.3 V TTL and 5 V TTL, and features an impressively minimal sampling time, making it a versatile solution for a wide array of applications in data acquisition and control systems.
| Feature | Specification |
|---|---|
| Product Name | National Instruments PXI-7842 PXI Multifunction Reconfigurable I/O Module |
| Part Number | 780338-01 |
| Onboard FPGA | Virtex-5 LX50 |
| Number of AI Channels | 8 |
| ADC Type | Successive Approximation |
| Input Resolution | 16 bits |
| A/D Conversion Time | 4 µs |
| Maximum Sampling Rate (AI) | 200 kS/s |
| Small Signal Bandwidth | 1 MHz |
| Number of AO Channels | 8 (16-bit) |
| AO Channel Properties | Single-ended, Voltage Output |
| Maximum Update Rate (AO) | 1 MS/s |
| Voltage Range (AO) | +10V |
| Number of DIO Channels | 96 |
| Supported Logic Levels (DIO) | 3.3 V TTL, 5 V TTL |
| Minimum Sampling Time (DIO) |




