DBS8710 Analogic 16-Bit, 16-Channel Multiplexer

The Analogic DBS8710 16-Bit, 16-Channel Multiplexer is a high speed, high precision multiplexer that combines 16 very accurate sample-and-hold (S/H) channels with a 400 kHz aggregate sampling rate in a VXI C size module. Compatible with VXI specification Rev. 1.3 regarding the P2 connector, this 16-channel, differential, simultaneous S/H multiplexer occupies a single slot in a VXI chassis. The DBS8710 is designed to meet the stringent demands of fast and accurate measurements associated with multichannel, simultaneous sampling in applications such as vibration analysis, rotating machinery testing, automotive and jet engine testing, and analysis of large mechanical structures and other complex mechanisms. Sixteen shielded, differential inputs are provided with both voltage and current protection and a passive, one-pole, low-pass filter. Each pair of inputs is buffered via an instrumentation amplifier with an excellent common mode rejection ratio (CMRR) into a 16-bit accuracy, superior performance, S&H circuit. All input channels are simultaneously switched from sampling (track) mode to hold mode. The simultaneous clocking of all S/H circuits and the addressing of multiplexers are performed by the digital subsection of DBS8710 that buffers and decodes the control signals received from an associated DBS 8700/8701 digitizer. All digital controls are exchanged via VXI lines located on the P2 connector. For self-test purposes, a reference and/or a ground voltage can be switched into two S/H inputs. The status of the pass/fail test may be displayed by a green/red light emitting diode (LED) indicator mounted on the front panel of the module. The same panel provides two 8-channel input connectors and two output connectors. A 3-position address DIP switch is located inside the module.