This module uses 24 high-precision A / D converter chip hx711, is designed for high-precision electronic scale and design, with two analog channel input, the internal integration of a gain programmable amplifier 128. Input circuit can be configured to provide an electrical bridge bridge voltage (such as pressure, weight) sensor model is an ideal high-precision, low-cost sampling front-end module.
1. Two selectable differential input channels 2. On-chip active low noise PGA with selectable gain of 32, 64 and 128 3. On-chip power supply regulator for load-cell and ADC analog power supply 4. On-chip oscillator requiring no external component with optional external crystal 5. On-chip power-on-reset 6. Simple digital control and serial interface: pin-driven controls, no programming needed 7. Selectable 10SPS or 80SPS output data rate 8. Simultaneous 50 and 60Hz supply rejection 9. Current consumption including on-chip analog power supply regulator: normal operation < 1.5mA, power down < 1uA 10. Operation supply voltage range: 2.6 ~ 5.5V 11. Operation temperature range: -40 ~ +85℃