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.
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℃