VXIBus - V200
16/32-channel, 16-bit, 200,000 Sample/s/channel Sigma-Delta ADC |
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ABOUT V200
The V200 is a single-width, C-size, register-based, VXIbus module that provides 16 or 32-channels of 16-bit resolution analog-to-digital conversion at sample rates up to 200 ksamples/s per channel. The sigma-delta architecture provides inherent filtering and synchronous sampling without the need for sample/hold amplifiers or sophisticated analog filters. A simple, 3-pole pre-filter assures no frequency aliasing. The module is divided into two channel groups, allowing one half of the channels to be operated at one clock rate, while the other half are operated at another clock rate. The groups can also be combined, operating the entire module at one clock rate.
Each channel has independently programmable input spans from +/-10 mV to +/-10 V provided by an Instrumentation amplifier front end. AC/DC coupling can also be programmed on a channel-by-channel basis. Channel calibration and self-test are performed automatically on command by the embedded DSPs. These DSPs also allow programmable level and slope limit checking.
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