Phidgets PhidgetEncoder HighSpeed USB 4-Input

PhidgetsSKU: RB-Phi-94
Manufacturer #: 1047_1B

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Sale price £73.77

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  • Functional with mechanical and optical encoders
  • Reads up to 4 encoders simultaneously
  • Time resolution of 1 µs
  • Maximum count rate: 250,000 counts/second

The Phidgets PhidgetEncoder HighSpeed USB 4-Input can be used with a wide assortment of mechanical and optical encoders. It reads four encoders simultaneously. The encoders are not powered up until all initialization of the device is complete. It is possible to enable some or all encoders, depending on how many of the channels are being used. This can also be used to reduce power consumption when certain encoders are not needed. It has the added ability to time the duration between a group of quadrature changes. The time is returned in microseconds. This time value can be used to calculate velocity and acceleration.

Both mechanical and optical encoders are available, with optical encoders dominating at > 100 counts per second. Review the data sheet for the encoder you are planning to use to ensure it is compatible with the PhidgetEncoder Highspeed 4-Input. Almost any incremental quadrature encoder will work but it is important to verify this before connecting it to the Phidget. Absolute encoders will not work with this device. Ideally, you should choose a quadrature encoder with a 5-pin output and the following pinout in order to be directly compatible with it.


  • Reads up to 4 encoders simultaneously
  • Time resolution of 1 µs
  • Includes 4 Digital Inputs for detecting the state of switches and sensors
  • Connects directly to a USB port on your PC
  • RoHS compliant
  • Phidgets PhidgetEncoder HighSpeed USB 4-Input

*Note: The kit does not include any cables.

PDF File

ZIP File


  • Maximum count rate: 250,000 counts/second
  • Internal output pull-up resistance: 10 kilo Ohms
  • Software update rate (typical): 8 ms
  • USB update rate: 125 samples/second
  • Time resolution: 1 µs


  • Max device current consumption (all channels enabled): 500 mA
  • Min device current consumption (all channels disabled): 30 mA
  • Maximum current consumption per encoder: 200 mA
  • Maximum current consumption for all encoders: 470 mA


  • Min/Max USB supply voltage: 4.75 - 5.25 VDC
  • Encoder input 0 voltage: < 1.4 V
  • Encoder input 1 voltage: > 1.8 V

Customer Reviews

Based on 2 reviews
Working fine

The drivers loaded with no problems. Using the library to create custom program to read position inputs of calibration devise.

Reordered product

A really good choice. High speed, and capacity for four inputs. I bought this product before in another shop, but it is much more easy to buy here from Spain.

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