encoder-photo-IC encoder-photo-IC

Optical encoding with photo ICs

Customization

Hamamatsu offers customization of photo ICs according to the specifications of the encoder the customer will manufacture. Below are examples of Hamamatsu’s initiatives and customizations of photo ICs for reflective encoders.

  • Monolithic structure of photodiode and peripheral circuit ⇒ Helps reduce the number of parts and mounting space in the customer's encoder
  • Multifunctionalization using I2C ⇒ Enables multifunctionalization such as electron volume
  • Built-in LED and LED driver ⇒ Enables light receiving and emitting photo ICs with LEDs placed in the center of the chip
  • Compensation for variations in reference values (current, voltage) by trimming
 
Example 1: Example photo IC in which the photodiode and LED are integrated (monolithic structure)

Example block diagram of a customized photo IC that combines a photodiode, LED, and peripheral circuits.

 Image of LED mounting (cross section).

External appearance of a customized photo IC that combines a photodiode, LED and peripheral circuits.

Example 2: Example of instrumentation amplifier (1/f noise, thermal noise considered)

We reduced noise with a circuit structure that considers 1/f noise and thermal noise.

Recommended products

Photo IC for encoder

Customization possible, please contact us for further information.

Encoder module

Customization possible, please contact us for further information.

Contact us for more information.

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