ACRA CONTROL
KAD/ADC/011
48-channel S/E analog-to-digital converter
Description
The KAD/ADC/011 is used to condition and digitize up to 48 S/E analog channels. At the heart of the KAD/ADC/011 is a hard-wired state machine that over-samples all channels and digitally filters any noise above the user-programmable cutoff frequency. This is achieved using cascaded, half-band, decimate by 2, 15-tap, finite-impulse-response (FIR) filters with 32-bit coefficients.
The signal conditioning on KAD/ADC/011 consists of unity gain buffer with the optional attenuation resistor at the input stage such that the input options are ±10V or ±40V.
Secondary gain and offset are achieved digitally according to requested input range.
Features
- 48 Single Ended (S/E) input channels
- 14-bit sampling on all channels
- Simultaneous sampling on channels 0 to 23, and 24 to 47
- Programmable secondary gain, offset and filter cutoff for each channel
- Input ranges: ±10V or ±40V
- ±0.3% FSR total error from all sources (no input attenuation)
- ±0.55% FSR total error from all sources (with input attenuation)
- Short to ground on any channel does not affect others
- Up to 8500 samples per second per channel
- Up to 0.66kHz bandwidth
Applications
- Analog signal acquisition
- FTI, OLM, HUMS
First of 48 channels on the KAD/ADC/011