Description
The SCXI-1140 is a high-performance, 8-Channel Simultaneously Sampling Differential Amplifier designed for versatility and efficiency in a wide range of testing and measurement scenarios. The part number for this specific model is 776572-40, positioning it within the SCXI & Legacy category, which is known for its reliability and advanced technology.
This model boasts 8 channels, enabling it to handle multiple signals simultaneously, making it an ideal choice for complex data acquisition tasks. The SCXI-1140 is compatible with NI-DAQmx, NB Series data acquisition boards, LabVIEW for Macintosh, and NI-DAQ for Macintosh, offering a broad range of options for integration into existing systems.
Key technical specifications include a Channel Output Slew Rate of 15 V/μsec, ensuring rapid response to signal changes. The Input Noise Spectral Density is rated at 12 nV/√Hz, while the Output Noise Spectral Density is slightly higher at 75 nV/√Hz, providing a clear indication of the device’s sensitivity and noise handling capabilities. Furthermore, the Maximum Output Voltage of ±10 V allows for a wide range of signal amplitudes to be accommodated.
For customization and optimization of performance, the device includes dedicated jumpers (W11, W13, W14), permitting users to tailor its operation to specific requirements. The SCXI-1140 supports both Single module parallel and Multiplexed scanning modes, enhancing its versatility. Additionally, its input protection features a 1 kΩ resistor in series, safeguarding the device against potential damage from external signals.
From a technical standpoint, the SCXI-1140 is equipped with a Four-byte, Read-only ID Register and a 32-bit, Write-only Configuration Register, facilitating easy identification and configuration of the module
| Specification | Detail |
|---|---|
| Part Number | 776572-40 |
| Category | SCXI & Legacy |
| Model | SCXI-1140 |
| Description | 8-Ch. Simultaneously Sampling Differential Amplifier |
| Channels | 8 |
| Compatibility | NI-DAQmx, NB Series data acquisition boards, LabVIEW for Macintosh, NI-DAQ for Macintosh |
| Channel Output Slew Rate | 15 V/μsec |
| Input Noise Spectral Density | 12 nV/√Hz |
| Output Noise Spectral Density | 75 nV/√Hz |
| Maximum Output Voltage | ±10 V |
| Dedicated Jumpers | W11, W13, W14 |
| Scanning Modes | Single module parallel, Multiplexed scanning |
| Input Protection | 1 kΩ resistor in series |
| ID Register | Four-byte, Read-only |
| Configuration Register | 32-bit, Write-only |



