V241-ZA41 DynamicSignals 96-Channel High-Level Scanning Multiplexer

The Model V241 is a single-width, C-size, register-based, VXIbus module that is a front-end multiplexer for the V207 ADC or V208 MUX-bus compatible ADC. This multiplexer is intended for medium to high channel count applications with high-level signals (±10.24 V). The V241 provides up to 96 high-level, differentially-received input channels. Up to three V241s can be used with the V207 for a maximum of 256 active channels. The V241 utilizes the Kinetic Systems MUX-bus concept which allows cableless analog signal transfer by way of the VXI Local Bus. A Scan RAM table on each module in the system provides the necessary multiplexing and synchronization mechanisms to transfer analog signals from MUX-bus source modules (V241, V252, V246, etc.) to MUX-bus sink modules (V207, V208).

On the V241, two calibration channels are provided for each block of 6 input channels on a common multiplexer. One of each pair is internally set to analog ground (0 V differentially) while the other receives the MUX-bus system calibration voltage from the ADC card (+10 V differentially). This method allows end-to-end calibration of the V241 and V207or V208.

Alternatively, if no MUX-bus reference exists, the V241 injects its own reference to these calibration channels. This facilitates a completely independent serf-test procedure onboard the module which ensures that each multiplexer is responding to a scanning address and its output is switching between its two calibration inputs. In addition, the power-up or software-initiated self-test checks the operational registers of the device and its MUX-bus capabilities.

The V241 utilizes a two-stage multiplexing strategy to maximize channel count and minimize bandwidth limiting capacitance. The front end includes current and voltage protection (to ±35 V) and the intermediate signals are buffered by operational amplifiers for high accuracy and signal integrity.

The V241 supports both static and dynamic configuration. It may be accessed using A24/A16, D16 data transfers.

Legacy Model Number Breakdown:
Model V241-ZA11: 24-channel, High-level, Scanning MUX
Model V241-ZA21: 48-channel, High-level, Scanning MUX
Model V241-ZA31: 72-channel, High-level, Scanning MUX
Model V241-ZA41: 96-channel, High-level, Scanning MUX