VXIBus - V216
16-channel, 24-bit Sigma-Delta ADC |
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ABOUT V216
The Model V216 is a single-width, C-size, register-based, VXIbus module that functions as either a single-scan or continuously active 16-channel Sigma-Delta ADC. Sigma-Delta conversion is a technique which attains its very high accuracy by digitally decimating and filtering the output of a fast, single-bit converter. This eliminates the need for expensive tracking filter, sample/hold, and gain functions allowing a simple ADC-per-channel structure.
This further eliminates the need to multiplex inputs to a common ADC and thereby reduces crosstalk effects to negligible levels. Another important consequence of the digital filtering is that filter notches are produced which can be made to coincide with 60 Hz (or 50 Hz) power line frequencies and their harmonics. Thus, even in environments with severe signal corruption due to power line noise, very good results are possible.
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