CAM502

The CAM502 is a high-speed processor IC for resonant inductive position sensing.  It can measure a single sensor at 5000 samples per second.

Measurements can be synchronised to a host SPI interface so that results are delivered to the host with as small as possible Group Delay.

Features

  • Resonant inductive position sensing engine
  • Fully ratiometric measurements
  • Pipeline measurement...
    • For high-speed operation, and
    • For minimising Group Delay from physical position to SPI read
  • SPI communications (slave device, up to 10Mbit/s)
  • User IOs for sample indicators
  • Internal software upgradable over SPI
  • Works with one Type 2 or one Type 6 sensor
  • External crystal controlled timing

Performance

  • Group Delay from physical position to SPI ready ≤ 140µs
  • Noise Free Resolution...
    • 12…15 bits at typical gap, depending on sensor
    • Up to 3 more bits available from optional on-chip filtering, at the expense of additional Group Delay
  • Automatic tuning to resonators across ±7% frequency range
  • Maximum update rate 5100 independent samples per second
  • Single 3.0...3.6V supply
  • -40°C to +125°C (CAM502BE)

The CAM502 is a high-speed processor IC for resonant inductive position sensing.  It can measure a single sensor at 5000 samples per second.

Measurements can be synchronised to a host SPI interface so that results are delivered to the host with as small as possible Group Delay.

Features

  • Resonant inductive position sensing engine
  • Fully ratiometric measurements
  • Pipeline measurement...
    • For high-speed operation, and
    • For minimising Group Delay from physical position to SPI read
  • SPI communications (slave device, up to 10Mbit/s)
  • User IOs for sample indicators
  • Internal software upgradable over SPI
  • Works with one Type 2 or one Type 6 sensor
  • External crystal controlled timing

Performance

  • Group Delay from physical position to SPI ready ≤ 140µs
  • Noise Free Resolution...
    • 12…15 bits at typical gap, depending on sensor
    • Up to 3 more bits available from optional on-chip filtering, at the expense of additional Group Delay
  • Automatic tuning to resonators across ±7% frequency range
  • Maximum update rate 5100 independent samples per second
  • Single 3.0...3.6V supply
  • -40°C to +125°C (CAM502BE)
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CambridgeIC

Founded in 2007, CambridgeIC has developed single chip processors and a set of standard sensor designs and integration tools. These help customers embed resonant inductive sensing inside their products, by drawing on modular and well proven components.

Contact

Cambridge Integrated Circuits Ltd
21 Sedley Taylor Road
Cambridge
CB2 8PW
UK
+44 (0) 1223 413500
info@cambridgeic.com