HX711 24Bit ADC For Weight Scales

Specification : HX711
Sales Price : RM7.20


HX711 is a precision 24-bit analogto-digital converter (ADC) designed for weigh scales and industrial control applications to interface directly with a bridge sensor.


Two selectable differential input channels
On-chip active low noise PGA with selectable gain of 32, 64 and 128
On-chip power supply regulator for load-cell and ADC analog power supply
On-chip power-on-reset
Selectable 10SPS or 80SPS output data rate
Simultaneous 50 and 60Hz supply rejection
Operation supply voltage range: 4.8 ~ 5.5VDC
Operation temperature range: -40 ~ +85°C
Current consumption < 1.5mA
Dimension: 36mmcm x 21mm x 5mm

Pin Definition - To MCU

Pin 'GND'Connect to MCU GND
Pin 'DT'Serial Data Output
Pin 'SCK'Serial Clock Input
Pin 'VCC'Connect to MCU VCC within 4.8 ~ 5.5VDC

Pin Definition - To Load Cell

Pin 'E+'Connect to Load Cell's Excitation '+'
Pin 'E-'Connect to Load Cell's Excitation '-'
Pin 'A-'Connect to Load Cell's Signal '-'
Pin 'A+'Connect to Load Cell's Signal '+'