HX711 Module Purple Version High-Precision Electronic Scale Weighing Sensor Dual-Channel 24-bit A/D ConverterItem NO.: HX711 Purple

HX711 Module Purple Version

Product Introduction:

HX711 is a 24-bit A/D converter chip designed for high-precision electronic scales. Compared with other chips of the same type, the chip integrates the peripheral circuits required by other chips of the same type, including the regulated power supply, the on-chip clock oscillator, and has the advantages of high integration, fast response speed, and strong anti-interference. The overall cost of the electronic scale is reduced, and the overall performance and reliability are improved. The interface and programming between the chip and the back-end MCU chip is very simple. All control signals are driven by pins, and there is no need to program registers inside the chip. The input selector switch can select either channel A or channel B, and is connected to its internal low noise programmable amplifier. The programmable gain of channel A is 128 or 64, and the corresponding full-scale differential input signal amplitude is ± 20mV or ± 40mV respectively. Channel B is a fixed 32 gain for system parameter detection. The regulated power supply provided in the chip can directly supply power to the external sensor and the A/D converter in the chip. No additional analog power supply is required on the system board. The clock oscillator in the chip does not need any external devices. The power-on automatic reset function simplifies the initialization process of power-on.

Size: 30.3mm * 22.6mm

Product Features:

● Two selectable differential inputs

● On-chip low noise programmable amplifier with optional gain of 64 and 128

● On-chip voltage stabilizing circuit can directly supply power to external sensors and on-chip A/D converters

● The on-chip clock oscillator does not need any external devices, and external crystal oscillator or clock can also be used when necessary

● Power-on automatic reset circuit

● Simple digital control and serial communication: all controls are input by pins, and registers in the chip need not be programmed

● Output data rate of 10Hz or 80Hz can be selected

● Synchronous suppression of 50Hz and 60Hz power interference

● Power consumption (including regulated power supply circuit): typical working current:<1.7mA, outage current:<1 μ A

● Working voltage range: 2.6~5.5V

● Operating temperature range: - 20~+85 ℃

● 16-pin SOP-16 package