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CJMCU-711 HX711 Electronic Weighing Sensor 24-bit A/D Converter Module
CJMCU-711 is a designed for high-precision electronic scales designed for 24-bit A / D converter chip. Compared with the same type of other chip that integrates the peripheral circuits including power supply£¬ on-chip clock oscillator with other types of chips needed£¬ high integration£¬ fast response£¬ strong anti-interference advantages. Reducing the overall cost of the electronic scale£¬ improving the overall performance and reliability. The chip with the rear end of the MCU chip interfaces and programming is very simple£¬ all control signals from the pin driver without internal chip registers. Input selector switch can select any channel A or channel B£¬ and its low-noise programmable internal amplifier is connected. A channel programmable gain of 128 or 64£¬ corresponding to the full amount of the differential input signal amplitude was ± 20mV or ± 40mV. Channel B£¬ compared with a fixed gain of 32 for the parameter detection system. Chip provided power supply can provide power directly to the A and external sensor chip A / D converter£¬ analog system board without additional power supply. Chip clock oscillator does not require any external components. Power-on reset function automatically simplifies the initialization boot. Two selectable differential inputs Rene-chip programmable low-noise amplifier£¬ selectable gain of 64 and 128 Rene-chip voltage regulator supplies power directly to the external sensor and on-chip A / D converter Rene-chip clock oscillator requires no external components£¬ if necessary£¬ may also be used an external crystal or clock Automatic power-on reset circuit Simple digital control and serial communication: All are controlled by input pins£¬ the chip registers without programming Choose 10Hz or 80Hz output data rates Simultaneous rejection of 50Hz and 60Hz power interference Power consumption (including power supply circuit): Typical operating current: <1.7mA£¬ shutdown current: <1μA Operating voltage range: 2.6~5.5V Operating temperature range: -20~+ 85¡æ SOP-16 16-pin package