The DS3001/DS3002 Incremental Encoder Interface Boards are designed for precise position control. Typical application areas are robotics and drive control.
The DS3001 is designed for position control applications with sensors providing digital phase information. The board comprises five parallel input channels, each providing everything needed to connect an incremental encoder and process its output signals: a regulated encoder power supply with sense lines, differential or single-ended inputs for the encoder’s two phase lines, and an index input.
If digital encoder information cannot provide the desired position accuracy, or if you want to employ encoders with fewer lines, sinusoidal position sensor signals can significantly increase accuracy and resolution. The DS3002‘s six channels capture sinusoidal encoder signals and subdivide them up to 4096 times. Each channel has its own 32-bit position counter that can also be used for digital signals.
DS3001 | DS3002 | |
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Number of channels | 5 | 6 |
Position counter | 24 bit | 32 bit |
Max. input frequency | 1.25 MHz | 750 kHz |
Incremental encoder signal types | Digital (differential RS422, single-ended TTL) | Digital (differential RS422, single-ended TTL) and sinusoidal (11 μApp or 1 Vpp) |
Resolution | 4-fold subdivision | 4-fold subdivision (digital) or 4096-fold subdivision (analog) between encoder lines |
Parameter | Specification | |
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General |
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Interrupt controller |
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Encoder signal types |
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Position counters |
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Encoder power supply lines |
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Index detection |
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Encoder interface |
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Physical connections |
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Host interface |
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Physical characteristics | Physical size |
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Ambient temperature |
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Power supply |
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Parameter | Specification | |
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General |
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Encoder signal types |
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Position counters |
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Encoder power supply lines |
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Input performance | ADC |
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Offset error (PHI0, PHI90) |
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ADC nonlinearity |
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Gain match (PHI0, PHI90) |
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Common mode rejection ratio (PHI0, PHI90 in 1 Vpp mode only) |
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Sinusoidal signal capture |
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Physical connections |
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Host interface |
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Physical characteristics | Physical size |
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Ambient temperature |
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Power supply |
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