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    SD6505

    Operating Voltage

    2.4~3.6V

    2.4~3.6V

    Operating Current

    1.5mA

    1.5mA

    ADC ENOB

    19.3bits@8sps
    Gain = 128

    19.3bits@8sps
    Gain = 128

    Peripherals

    DAC

    DAC

    Package

    SSOP24

    SSOP24
    IC Introduction

            SD6505 has built-in 24 bits ADC, LED driver, and two-wire communication circuits.
            The LED driver circuit can drive up to 56 common cathode LEDs with a maximum drive current of 14 mA, which ensures sufficient brightness from white LEDs.
            A host computer can read and edit all the registers in the IC through the two-wire communication circuit.
            The IC supports timing measurement comparison mode. After entering this mode, host is turned on after successful data comparison. The host can also 
    turn on the IC independently.

            The IC has built-in sine wave generator, temperature sensor, 8 bits DAC, etc., to meet the requirements of various applications.

    IC Features
    • High precision ADC, ENOB=19.3 bits@8sps, 4 differential or 8 single- ended inputs

    • Low noise, high input impedance preamplifier with selectable gain:1, 4, 8, 16, 32, 64, 128, or 256

    • Internal 8MHz and 32kHz RC oscillator

    • Two-wire communication interface, maximum speed at 1.1MHz

    • Built-in LED driver, provide 8 LED drive ports, maximum drive current 14mA, drive up to 56 common cathode LEDs, optional drive waveform duty cycle

    • Built-in sine wave generator and rectifier circuit, frequency selectable at 5kHz, 50kHz, 100kHz, or 200kHz, support four electrodes body fat measuring function

    • Built-in 8 bits DAC, supports two outputs

    • Built-in temperature sensor, support single point calibration

    • Hardware timing comparison measurement function

    • Flexible battery voltage detection: 2.0~3.3V

    • Built-in sensor excitation output, output voltage options: 2.4V, 2.7V, 3.0V and 3.3V

    • Low voltage detection and power on reset circuit

    • Operating voltage range: 2.4~3.6V

    • Operating temperature range: -40~85℃

    IC Block Diagram
    Application area

    Cash Register Scale

    Four Electrodes AC Health Scale

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