Regarding Our Magnetic Encoders: If I Supply 3.3V to the Encoder, Will Its "High-Level Output Voltage" Be Equal to or Lower Than 3.3V?

Our magnetic encoders generally operate with an input voltage range of 3.3V to 5V.

Below are the standard parameters of our typical magnetic encoder:

• Output Circuit Type: Differential
• Encoder Type: Magnetic Incremental
• Encoder Resolution: 1000 PPR (4000 CPR)
• Output Signal Channels: 3 channels
• Supply Voltage Min: 3.3V
• Supply Voltage Max: 5.5V
• Output Current: 20mA
• Output High Voltage: 5V
• Output Low Voltage: 0.2V
• Output Frequency Max: 400 kHz

When powered with 3.3V, the high-level output signal of the encoder will be slightly lower than 3.3V. The encoder does not have a voltage-boosting function, so some voltage drop is expected.

This is completely normal and is a common characteristic of almost all encoders.

When powered by 3.3V, the typical high-level output of the encoder is usually above 2.9V, which is approximately 90% of the supply voltage. Under normal conditions, this voltage is sufficient to be reliably recognized as a "high level" by downstream 3.3V chips, ensuring stable system operation. If there are concerns about compatibility, it is recommended to consult the chip manufacturer regarding specific operational requirements.

Updated on: 30/01/2026