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AS5245 Datasheet with Chat AI
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  • Part No.AS5245
    ManufacturerAMSCO
    Size1Mb
    Pages32 pages
    DescriptionProgrammable 360 Magnetic Angle Encoder with Absolute SSI and PWM Output
    Datasheet Summary with AI

    1. Power Supply and General Operating Conditions

    ️· Supply Voltage (VDD5V):
    - 3.0 to 3.6V (for 3V operation)
    - 4.5 to 5.5V (for 5V operation)
    ️· Ambient Temperature (TAMB): -40 to +150°C
    ️· Fast Mode: MODE = 1
    ️· Slow Mode: MODE = 0 or open

    2. Electrical Characteristics (Key Voltages & Currents)

    ️· VOH (High-Level Output Voltage): VDD5V - 0.5V (for various outputs - A, B, Index, DO, Tri-state DO)
    ️· VOL (Low-Level Output Voltage): VSS + 0.4V (for various outputs - A, B, Index, DO, Tri-state DO)
    ️· IO (Output Current): 4mA (at VDD5V = 4.5V, for various outputs – A, B, Index, DO, Tri-state DO) – 2mA (at VDD5V = 3V for the same outputs).
    ️· IOZ (Tri-state leakage current): 1µA (for Tri-state DO)

    3. Timing Specifications

    ️· tPwrUp (Power-up Time):
    - Fast Mode: 20 ms (until status bit OCF = 1)
    - Slow Mode: 80 ms (until status bit OCF = 1)
    ️· tdelay (System Propagation Delay):
    - Fast Mode: 96 µs (absolute output)
    - Slow Mode: 384 µs (absolute output)
    ️· CLK/SEL (Read-out Frequency): Maximum 1 MHz

    4. Input Specifications (Performance)

    ️· Resolution: 0.088 degrees (12-bit)
    ️· INLopt (Integral Non-linearity, Optimum): ±0.5 degrees (centered magnet, TAMB = 25°C, no calibration)
    ️· INLtemp (Integral non-linearity, Temperature): ±0.9 degrees (centered magnet, no calibration, TAMB = -40 to +150°C)
    ️· INL (Integral non-linearity): ±1.4 degrees (over displacement tolerance with 6mm magnet, no calibration, TAMB = -40 to +150°C)
    ️· DNL (Differential Non-linearity): ±0.044 degrees
    ️· TN (Transition Noise):
    - Fast Mode: 0.06 degrees RMS
    - Slow Mode: 0.03 degrees RMS
    ️· fS (Internal Sampling Rate):
    - Fast Mode: 9.90 - 11.46 kHz (depending on temperature)
    - Slow Mode: 2.35 - 2.87 kHz (depending on temperature)

    Important Notes:

    ️· This is a summary of *excerpts*. The full datasheet contains many more specifications, including details on digital interfaces (SPI, etc.), status registers, magnetic sensor characteristics, and more.
    ️· Context Matters: The specific values and conditions (e.g., TAMB, magnet position, mode) significantly impact the performance. Always refer to the complete datasheet for accurate interpretation.
    ️· "Unless Otherwise Noted": Many specifications are qualified with "unless otherwise noted." This means the listed values may vary under different conditions.
    ️· OCF: The OCF status bit indicates power-up completion. It's crucial for proper initialization.

    1. Power Supply and General Operating Conditions

    ️· Supply Voltage (VDD5V):
    - 3.0 to 3.6V (for 3V operation)
    - 4.5 to 5.5V (for 5V operation)
    ️· Ambient Temperature (TAMB): -40 to +150°C
    ️· Fast Mode: MODE = 1
    ️· Slow Mode: MODE = 0 or open

    2. Electrical Characteristics (Key Voltages & Currents)

    ️· VOH (High-Level Output Voltage): VDD5V - 0.5V (for various outputs - A, B, Index, DO, Tri-state DO)
    ️· VOL (Low-Level Output Voltage): VSS + 0.4V (for various outputs - A, B, Index, DO, Tri-state DO)
    ️· IO (Output Current): 4mA (at VDD5V = 4.5V, for various outputs – A, B, Index, DO, Tri-state DO) – 2mA (at VDD5V = 3V for the same outputs).
    ️· IOZ (Tri-state leakage current): 1µA (for Tri-state DO)

    3. Timing Specifications

    ️· tPwrUp (Power-up Time):
    - Fast Mode: 20 ms (until status bit OCF = 1)
    - Slow Mode: 80 ms (until status bit OCF = 1)
    ️· tdelay (System Propagation Delay):
    - Fast Mode: 96 µs (absolute output)
    - Slow Mode: 384 µs (absolute output)
    ️· CLK/SEL (Read-out Frequency): Maximum 1 MHz

    4. Input Specifications (Performance)

    ️· Resolution: 0.088 degrees (12-bit)
    ️· INLopt (Integral Non-linearity, Optimum): ±0.5 degrees (centered magnet, TAMB = 25°C, no calibration)
    ️· INLtemp (Integral non-linearity, Temperature): ±0.9 degrees (centered magnet, no calibration, TAMB = -40 to +150°C)
    ️· INL (Integral non-linearity): ±1.4 degrees (over displacement tolerance with 6mm magnet, no calibration, TAMB = -40 to +150°C)
    ️· DNL (Differential Non-linearity): ±0.044 degrees
    ️· TN (Transition Noise):
    - Fast Mode: 0.06 degrees RMS
    - Slow Mode: 0.03 degrees RMS
    ️· fS (Internal Sampling Rate):
    - Fast Mode: 9.90 - 11.46 kHz (depending on temperature)
    - Slow Mode: 2.35 - 2.87 kHz (depending on temperature)

    Important Notes:

    ️· This is a summary of *excerpts*. The full datasheet contains many more specifications, including details on digital interfaces (SPI, etc.), status registers, magnetic sensor characteristics, and more.
    ️· Context Matters: The specific values and conditions (e.g., TAMB, magnet position, mode) significantly impact the performance. Always refer to the complete datasheet for accurate interpretation.
    ️· "Unless Otherwise Noted": Many specifications are qualified with "unless otherwise noted." This means the listed values may vary under different conditions.
    ️· OCF: The OCF status bit indicates power-up completion. It's crucial for proper initialization.

    Part No.AS5245
    ManufacturerAMSCO
    Size1Mb
    Pages32 pages
    DescriptionProgrammable 360 Magnetic Angle Encoder with Absolute SSI and PWM Output
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