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CAT5261 Datasheet with Chat AI
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  • # Example questions: ➢ What does 'lsb' represent in the context of absolute and relative linearity measurements?
    ➢ What is the typical resistance range for the potentiometer, considering the -00 and -50 options?
    ➢ What is the maximum permissible temperature coefficient (tcr) for the potentiometer resistance (rpot)?

  • Part No.CAT5261
    ManufacturerCATALYST
    Size95 Kbytes
    Pages15 pages
    DescriptionDual Digitally Programmable Potentiometer
    Datasheet Summary with AI

    1. Absolute Maximum Ratings

    ️· Voltage on any RH or RL Pin: GND to VCC (relative to ground).
    ️· Potentiometer Power Rating: 50 mW per potentiometer (at 25°C).
    ️· Wiper Current (IW): +3 mA
    ️· Wiper Resistance (RW): (Varies with VCC)
    - @ VCC = 3V: 200-300 Ω
    - @ VCC = 5V: 100-150 Ω

    2. Recommended Operating Conditions

    ️· VCC (Supply Voltage): Not explicitly stated, but implied by RW values (3V-5V range is suggested).
    ️· Temperature: Not explicitly stated, but relevant to TCR parameters.

    3. Electrical Characteristics (Potentiometer)

    ️· Potentiometer Resistance (RPOT):
    - -00 Version: 100 kΩ
    - -50 Version: 50 kΩ
    ️· Potentiometer Resistance Tolerance: +20%
    ️· RPOT Matching: 1%
    ️· Voltage on any RH or RL Pin: GND to VCC (relative to ground).
    ️· Noise: Not defined in a quantifiable way (nV/Hz).
    ️· Resolution: 0.4%
    ️· Absolute Linearity: +1 LSB (Least Significant Bit)
    ️· Relative Linearity: +0.2 LSB
    ️· TCRPOT (Temperature Coefficient of RPOT): +300 ppm/°C
    ️· TCRATIO (Ratiometric Temperature Coefficient): +20 ppm/°C
    ️· Potentiometer Capacitances: CH/CL/CW = 10/10/25 pF
    ️· Frequency Response: 0.4 MHz (at RPOT = 50 kΩ)

    4. Notes & Definitions (Important to Understand the Specs)

    ️· "Parameter tested initially and after design/process change": Some parameters are checked at the beginning and whenever the design or manufacturing process is altered.
    ️· Absolute Linearity: Measures how close the actual wiper voltage is to the *expected* voltage based on wiper position.
    ️· Relative Linearity: Measures the change in voltage between successive wiper positions. It's about the accuracy of the step size.
    ️· LSB (Least Significant Bit): Defined as RTOT / 255 or (RH - RL) / 255 for a single potentiometer. Crucial for understanding linearity specs.
    ️· ppm/°C (Parts per million per degree Celsius): A unit measuring temperature sensitivity.

    1. Absolute Maximum Ratings

    ️· Voltage on any RH or RL Pin: GND to VCC (relative to ground).
    ️· Potentiometer Power Rating: 50 mW per potentiometer (at 25°C).
    ️· Wiper Current (IW): +3 mA
    ️· Wiper Resistance (RW): (Varies with VCC)
    - @ VCC = 3V: 200-300 Ω
    - @ VCC = 5V: 100-150 Ω

    2. Recommended Operating Conditions

    ️· VCC (Supply Voltage): Not explicitly stated, but implied by RW values (3V-5V range is suggested).
    ️· Temperature: Not explicitly stated, but relevant to TCR parameters.

    3. Electrical Characteristics (Potentiometer)

    ️· Potentiometer Resistance (RPOT):
    - -00 Version: 100 kΩ
    - -50 Version: 50 kΩ
    ️· Potentiometer Resistance Tolerance: +20%
    ️· RPOT Matching: 1%
    ️· Voltage on any RH or RL Pin: GND to VCC (relative to ground).
    ️· Noise: Not defined in a quantifiable way (nV/Hz).
    ️· Resolution: 0.4%
    ️· Absolute Linearity: +1 LSB (Least Significant Bit)
    ️· Relative Linearity: +0.2 LSB
    ️· TCRPOT (Temperature Coefficient of RPOT): +300 ppm/°C
    ️· TCRATIO (Ratiometric Temperature Coefficient): +20 ppm/°C
    ️· Potentiometer Capacitances: CH/CL/CW = 10/10/25 pF
    ️· Frequency Response: 0.4 MHz (at RPOT = 50 kΩ)

    4. Notes & Definitions (Important to Understand the Specs)

    ️· "Parameter tested initially and after design/process change": Some parameters are checked at the beginning and whenever the design or manufacturing process is altered.
    ️· Absolute Linearity: Measures how close the actual wiper voltage is to the *expected* voltage based on wiper position.
    ️· Relative Linearity: Measures the change in voltage between successive wiper positions. It's about the accuracy of the step size.
    ️· LSB (Least Significant Bit): Defined as RTOT / 255 or (RH - RL) / 255 for a single potentiometer. Crucial for understanding linearity specs.
    ️· ppm/°C (Parts per million per degree Celsius): A unit measuring temperature sensitivity.

    Part No.CAT5261
    ManufacturerCATALYST
    Size95 Kbytes
    Pages15 pages
    DescriptionDual Digitally Programmable Potentiometer
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