Description
The 781068-01, 785040-01, 781068-02, 199272C-01L are part numbers for the C Series Voltage and Current Input Module, a product of National Instruments. This module is specifically designed to accommodate 16 analog input channels, making it versatile for a wide range of applications.
The voltage range of the module is ±10.2 V, and it can handle a current range of ±21.5 mA. It offers a resolution of 52ms high resolution for detailed data acquisition and 2ms high speed for applications requiring rapid data processing. The voltage input impedance is notably high at >1 GΩ, ensuring minimal loading on the circuit being measured. In contrast, the current input impedance is approximately 85 Ω, optimized for current sensing applications.
The module’s maximum sample rate is 500 samples per second (S/s), providing a balance between speed and accuracy for data collection. It is also designed with a 50/60 Hz rejection feature, which helps in minimizing noise from power lines, thereby ensuring cleaner data acquisition.
Connection to the module is facilitated through a 37-pin DSUB and a 36-pin spring terminal, offering flexibility in wiring. It supports a wire gauge range from 26 AWG to 16 AWG, accommodating various wire sizes for different applications. The module’s weight varies slightly depending on the connection type, being 5.1 oz for the DSUB connection and 5.7 oz for the spring terminal connection.
Designed to operate in harsh environments, the module has an operating temperature range of -40 to 70 °C, ensuring reliability and performance stability in extreme conditions.
| Feature | Description |
|---|---|
| Part Numbers | 781068-01, 785040-01, 781068-02, 199272C-01L |
| Module Type | C Series Voltage and Current Input Module |
| Manufacturer | National Instruments |
| Channels | 16 analog input channels |
| Voltage Range | ±10.2 V |
| Current Range | ±21.5 mA |
| Resolution | 52ms high resolution, 2ms high speed |
| Voltage Input Impedance | >1 GΩ |
| Current Input Impedance | ~85 Ω |
| Maximum Sample Rate | 500 S/s |
| 50/60 Hz Rejection | Yes |
| Connection Type | 37-pin DSUB, 36-pin spring terminal |
| Wire Gauge Range | 26 AWG to 16 AWG |
| Weight (DSUB/Spring Terminal) | 5.1 oz / 5.7 oz |
| Operating Temperature Range | -40 to 70 °C |


