CDI12100 – 12-Channel Sensor Analog Front End

CDI12100 - 12-CHANNEL SENSOR ANALOG FRONT END

Description

The CDI12100 is composed of 12 channels, each containing an amplifier, a rectifier and a filter.

The CDI12100 is available in a 48pin 6x6mm QFN.

Features
  • 12 amplifier, rectifier and filter channels
  • Carrier output signal (CLK/128) used to drive the excitation source
  • Built-in phase detector and rectifier
  • Accepts internal or external rectified signal
  • 14 programmable gains (27dB -> 93dB)
  • Good matching between filters (<1%)
  • Adjustable filter frequency and bandwidth using external clock (250kHz - 4MHz)
  • Operates at up to +/- 10V power supply
  • Low power (< 240mW overall power dissipation [20mW/channel])
Functional Block Diagram

asic-diagram-2

Datasheet

CDI12100 datasheet (PDF)

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