The HX711 uses the patented technology of Haixin Technology IC, which 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 peripheral circuits required by other types of chips including a regulated power supply and an on-chip clock oscillator, and has the advantages of high integration, fast response, and strong anti-interference. The overall machine cost of the electronic scale is reduced, and the performance and reliability of the whole machine are improved.

　　 The interface and programming of the chip with the back-end MCU chip is very simple, all control signals are driven by pins, and there is no need to program the registers inside the chip. The input selector switch can be used to select either channel A or channel B to connect to its internal low noise programmable amplifier. Channel A has a programmable gain of 128 or 64, and the corresponding full-scale differential input signal amplitude is ±20mV or ±40mV, respectively. Channel B is a fixed 64-gain for system parameter detection. The regulated power supply provided on the chip can directly supply power to the external sensor and the A/D converter in the chip, and no additional analog power supply is required on the system board. The clock oscillator inside the chip does not require any external devices. The power-on auto-reset feature simplifies the boot process.

1, two-way selectable differential input

2. On-chip low noise programmable amplifier with selectable gains of 64 and 128

3. The on-chip voltage regulator circuit can directly supply power to external sensors and on-chip A/D converters.

4, the on-chip clock oscillator does not need any external devices, if necessary, you can also use an external crystal or clock

5, power-on automatic reset circuit

6, simple digital control and serial communication: all control is input by the pin, the chip internal registers do not need to be programmed

7, can choose 10Hz or 80Hz output data rate

8, synchronous suppression of 50Hz and 60Hz power interference

9, power consumption (including regulated power supply circuit): Typical operating current: "1.7mA, power off current: "1μA

10, working voltage range: 2.6 ~ 5.5V

11, working temperature range: -20 ~ +85 ° C

12- and 16-pin SOP-16 package

Waterproof Slip Ring

A waterproof slip ring is a type of sealant that can be used to create a watertight seal between two surfaces. This seal can be used in a variety of applications, including plumbing and automotive manufacturing. Waterproof slip rings are often used in conjunction with other types of seals to create a watertight system. It enables liquid and gas to flow freely between the two, without any leakage. This essential technology is used in a variety of industries, from automotive manufacturing to food processing.

Waterproof slip rings are mainly made of silicone rubber. They can be used in harsh environments and have a long life span. Silicon is an inert material and does not corrode in water or other liquids. It also has a low coefficient of friction, which makes it ideal for use in moving parts. Slip ring motors are typically used in high-power applications where large amounts of the current need to be transmitted. They are made of copper or aluminum to provide good electrical conductivity.

The Oubaibo waterproof slip ring is very popular on the market. It is made of high-quality materials and has a long lifespan. The slip ring is also very easy to use, and it can be connected to a wide range of devices. Additionally, the slip ring is Ethernet-enabled, which makes it perfect for industrial applications.

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