HJ31050 differential sensor signal conditioning circuit
隐藏域元素占位
- Product Description
-
- Commodity name: HJ31050 differential sensor signal conditioning circuit
- Commodity ID: 1311258087452725248
- 型号: HJ31050
- 产品概述: Features strong adaptability, low power consumption, wide applicability, and reverse connection protection.
- 关键参数: 16-bit calibration accuracy, suitable for 1 to 275 mV/V bridge sensors
- 工作电流 （IQ）: 4mA
- 电源电压范围(VDD/V): 2.7-5.5
- 工作温度(TA/℃): -55 to +125
- 封装 （Package）: D16S2,F16-01
HJ31050 is a CMOS integrated circuit used for high-precision amplification of bridge sensor signals and specific calibration of sensors. It employs a 16-bit RISC microprocessor to adjust the calibration algorithms stored in EEPROM, implementing digital compensation for sensor offset, sensitivity, temperature drift, and non-linearity. HJ31050 is suitable for various bridge sensors (such as pressure resistive sensors, ceramic thick-film sensors, or steel diaphragm sensors), and it also features an independent temperature sensor interface. To set the calibration coefficients into the chip's EEPROM, a digital interface (I2C, SPI, ZACwireTM) is used to simplify the PC-controlled single-wire calibration procedure. Combined with methods such as laser correction or potentiometer adjustment, these sensors and HJ31050 achieve digital matching: fast, precise, and cost-effective.
Product features include:
Digital compensation for sensor offset, sensitivity, temperature drift, and non-linearity. Suitable for all types of bridge sensors (signal range 1 to 275mV/V).
Digital one-time calibration: fast and accurate.
Optional compensation temperature T1 source: bridge, thermistor, built-in diode or external diode.
Output options: voltage (0…5V), current (4…20mA), PWM, I2C, SPI, ZACwireTM(Single wire interface), alarm.
Adjustable output resolution (up to 15 bits) by selecting the sampling rate (up to 3.9kHz).
Optional bridge excitation source: proportional voltage, constant voltage source or constant current source.
Sensor connection and general model check (secondary detection).
Operating temperature range: related to product category, -55℃ to +125℃ (rated value: -55℃ to +150℃).
Power supply voltage range: +2.7V….+5.5V.
previous page
next page