HX711 ADC Convertor

24‑Bit Precision Proc for Load‑Cell Measurement

The HX711 is a low‑power, 24‑bit sigma‑delta ADC with an internal instrumentation amplifier specifically engineered for high‑resolution load‑cell, strain gauge, and wheatstone bridge inputs. It delivers 32× or 64× programmable gain, a 10 Hz sample rate, and integrated temperature‑compensated internal reference, making it the ideal bridge between high‑impedance sensor nodes and microcontrollers. Its compact 4‑pin design (VDD, GND, DO, CLK) keeps board space minimal while ensuring low noise and high signal fidelity.

• Key Spec 1: 24‑bit resolution with 12.5 µV LSB on a 5 V supply
• Key Spec 2: Programmable gain (32 or 64) and configurable 10 Hz–80 Hz sampling
• Key Spec 3: Low power consumption – 120 µA in standby, 95 µA during conversion
• Common Use Case: Data logging and control in digital kitchen scales, industrial load cells, and precision balance systems