这镍SCXI-1140(零件号:776572-40)是一个同步采样差分放大器模块。该模块具有8个通道和外部定时信号连接。该模块与NI-DAQmx测量服务软件兼容。因此，配置保持简单明了。该模块可与的数据采集板一起使用NB系列用LabVIEW for Macintosh。该设备也可以与麦金塔电脑的DAQ软件一起使用。

该器件的通道输出压摆率为15 V/μsec，输入噪声频谱密度为12 nV/√Hz，输出噪声频谱密度为75 nV/√Hz。这镍SCXI-1140最大输出电压可达10 V。这镍SCXI-1140配有三个专用跳线:W11、W13和W14，用于SCXIbus和数据采集板之间的通信。这SCXI-1140差分放大器模块配有DIP开关可编程仪表放大器、缓冲采样保持放大器、多路复用器和输出开关。

的输入保护国家仪器公司SCXI-1140具有1kω串联电阻。该模块的每个输入端子都受到保护。这SCXI-1140附带四种基本类型的扫描模式，如单模块并行和多路复用扫描。该模块有两个寄存器。ID寄存器是一个4字节的只读寄存器。另一方面，配置寄存器是一个32位只写寄存器。还有一个用户无法访问的配置寄存器。它是一个32位寄存器，旨在处理的控制和功能相关任务SCXI-1140。

SCXI-1140

This nickel SCXI-1140 (part number: 776572-40) is a synchronous sampling differential amplifier module. This module has 8 channels and external timing signal connections. This module is compatible with NI-DAQmx measurement service software. Therefore, the configuration remains simple and clear. This module can be used with the NB series LabVIEW for Macintosh data acquisition board. This device can also be used with the DAQ software of the Macintosh computer. The channel output voltage swing rate of this device is 15 V/ μ Sec, the input noise spectrum density is 12 nv/√ Hz, and the output noise spectrum density is 75 nv/√ Hz. The maximum output voltage of this nickel SCXI-1140 can reach 10 V. This nickel SCXI-1140 is equipped with three dedicated jumpers: W11, W13, and W14, for communication between SCXIbus and data acquisition board. This SCXI-1140 differential amplifier module is equipped with a DIP switch programmable instrument amplifier, buffered sampling and holding amplifier, multiplexer, and output switch. The input protection of National Instrument Company SCXI-1140 has 1k ω Series resistance. Each input terminal of this module is protected. This SCXI-1140 comes with four basic types of scanning modes, such as single module parallel and multiplexing scanning. This module has two registers. The ID register is a 4-byte read-only register. On the other hand, the configuration register is a 32-bit write only register. There is also a configuration register that users cannot access. It is a 32-bit register designed to handle control and function related tasks SCXI-1140.

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