KAD/ADC/120

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The KAD/ADC/120 is used to condition and digitize up to twelve D/E analog channels.

At the heart of the KAD/ADC/120 is a hard-wired state machine that over-samples all channels at a rate between 48 ksps and 96 ksps and digitally filters any noise above the user-programmable cutoff frequency.

This is achieved using cascaded, half-band, Finite-Impulse-Response (FIR) filters followed by an 8th order Butterworth IIR filter with a default cutoff point set at one-quarter of the sampling frequency (fc = fs/4).

All signals are sampled simultaneously. Thus, when several channels are sampled at different sampling rates, at the start of an acquisition cycle all channels are aligned.

The KAD/ADC/120 is similar to the KAD/ADC/118 but does not support channel balancing. The KAD/ADC/120 is available with three different input ranges (±10V, ±1V, ±100mV). The input range must be specified when ordering.

Features

  • 112 full or ½-bridge, potentiometer or differential ended input channels
  • Ordering Input range (±100mV, ±1V, ±10V)
  • High accuracy (max. 0.12% FSR at unity gain)
  • Programmable voltage excitation per group of three channels
  • High impedance (>10MΩ/50kΩ) when on/off
  • Shorts only affect channels sharing excitation
  • 16-bit simultaneous sampling on each channel
  • Up to 12K samples per second per channel
  • Up to 3kHz Bandwidth (AAAF filter)

Applications

  • Analog signal Acquisition
  • Differential Ended
  • Full Bridge
  • Half Bridge
  • Potentiometer
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