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DS3501 - I2C POT

General Description

The DS3501 is a 7-bit, nonvolatile (NV) digital potentiometer featuring an output voltage range of up to 15.5V.

Programming is accomplished by an I2C-compatible interface, which can operate at speeds of up to 400kHz.

Key Features

  • 128 Wiper Tap Points.
  • Full-Scale Resistance: 10kΩ.
  • On-Chip Temperature Sensor and ADC.
  • 36-Byte Lookup Table (LUT).
  • I2C-Compatible Serial Interface.
  • Address Pins Allow Up to Four DS3501s to Share the Same I2C Bus.
  • Digital Operating Voltage: 2.7V to 5.5V.
  • Analog Operating Voltage: 4.5V to 15.5V.
  • Operating Temperature: -40°C to +100°C.
  • Pin and Software Compatible with ISL95311 (Default Mode).
  • 10-Pin.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Rev 0; 1/07 High-Voltage, NV, I2C POT with Temp Sensor and Lookup Table General Description The DS3501 is a 7-bit, nonvolatile (NV) digital potentiometer featuring an output voltage range of up to 15.5V. Programming is accomplished by an I2C-compatible interface, which can operate at speeds of up to 400kHz. External voltages are applied at the RL and RH inputs to define the lowest and highest potentiometer outputs. The DS3501 contains an on-chip temperature sensor and associated analog-to-digital converter (ADC). The ADC output addresses a 36-word NV lookup table (LUT). The LUT output can drive the pot directly or be added to an NV initial-value register (IVR) to drive the pot.