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Temperature Drift ±5ppm/°C Weight Scale Load Cell Amplifier HX711 Common Mode Input GND 1.2v VCC -1.3V

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Temperature Drift ±5ppm/°C Weight Scale Load Cell Amplifier HX711 Common Mode Input GND 1.2v VCC -1.3V

Name: Temperature Drift 5ppmC Weight Scale Load Cell Amplifier HX711 Common Mode Input GND 12v VCC 13V
Brand: Sensorcon
Price: 3 USD

Quality Temperature Drift ±5ppm/°C Weight Scale Load Cell Amplifier HX711 Common Mode Input GND 1.2v VCC -1.3V for sale

Place of Origin : Fujian, China

Brand Name : Sensorcon

Model Number : HX711

Product Completion Type : Accessory

Mounting Type : Fixed installation

Description : HX711

Name : Load Cell Amplifier HX711

Voltage : 2.6 to 5.5 VDC

Nominal Current : 1.5mA

Power Down Current : 0.5 uA

Common Mode Input : GND +1.2v VCC -1.3V

Output Settling Time : 400ms

Input Offset Drift : 0.2mV

Temperature Drift : ±5ppm/°C

Input Common Mode Rejection : 100 dB

application : weight sensor scale

Price : $3/units

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Weight Scale Load Cell Amplifier HX711

Temperature Drift ±5ppm/°C Weight Scale Load Cell Amplifier HX711 Common Mode Input GND 1.2v VCC -1.3V

Weight Scale Load Cell Amplifier HX711

FEATURES

Single Channel
24-bit Analog to Digital Converter
Programmable Gain of 64 and 128
10Hz Default Data Rate (80Hz optional)
2.6 – 5.5 VDC Supply Voltage
Low Power Operation with Power Down Mode
Small Form Factor
Simple Connection (4/5 pin Connector)

INTERFACE
4 Wire SPI

APPLICATIONS
Weighing Scales
Industrial Process Control
Portable Instrumentation
Smart Transmitters

AVIALABLE ACCESORIES
5 pin Sensor Cable
4 pin Data Cable
Mounting Hardware

Weight Scale Load Cell Amplifier HX711

ELECTRICAL PARAMETERS

Parameter	Value	Unit
Power Supply Voltage (VCC)	2.6 – 5.5	V
Nominal Current	1.5	mA
Power Down Current	0.5	uA
Common Mode Input	GND + 1.2	V
Common Mode Input	VCC – 1.3	V
Output Settling Time	400	ms
Input Offset Drift	0.2	mV
(Gain = 128)	0.2	mV
Temperature Drift	±5	ppm/°C
(Gain = 128)	±5	ppm/°C
Input Common Mode Rejection (Gain = 128)	100	dB
Input Common Mode Rejection (Gain = 128)	100	dB
Power Supply Rejection (Gain = 128)	100	dB

CONNECTION

RED	Excitation +	RED	VCC
BLACK	Excitation -	WHITE	DOUT
WHITE	Output -	GREEN	SCK
GREEN	Output +	BLACK	GND
YELLOW	Shield

In most applications, the Shield cable is left open and not connected to the load cell. However, when operating in environments with heavy machinery and high electromagnetic interference, connecting the Shield improves stability and EMC performance.

COMMUNICATIONS

The HX711-S utilizes a simple two-wire interface which can be connected directed to a microcontroller.
When data is not ready, DOUT is kept high and SCK is low. When data is ready DOUT set low. Data can then be retrieved by clocking in 25-27 clock pulses on the SCK pin. Each clock pulse shifts out one bit starting with the MSB until all 24 bits are shifted. The 25th clock pulse will pull DOUT back to high.
The last clock cycles indicates the Gain selection for the next conversion cycle. The Gain can be selected as shown in the table below. There must be no less than 25 and no more than 27 clock pulses in one conversion cycle to ensure proper operation of the serial interface. The first conversion after Reset will always be with a Gain of 128.

SCK Clock Pulses	Gain
25	128
27	64

Third party libraries are available for simple communication for HX711-S amplifier. Please contact our sales representative for references

POWER DOWN MODE

The HX711-S can be placed into power down mode by keeping SCK pin high for more than 60us. By returning the SCK to low, the amplifier will reset and resume normal operation. During low power mode, the external bridge sensor and the amplifier for minimal power consumption.

Temperature Drift ±5ppm/°C Weight Scale Load Cell Amplifier HX711 Common Mode Input GND 1.2v VCC -1.3V Images

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