描述 Description

HAL 85x補(bǔ)充了顯有的HAL 8xx霍爾效應(yīng)傳感器系列。產(chǎn)品提供任意輸出信號(hào)，以亞微CMOS技術(shù)生產(chǎn)。和一個(gè)旋轉(zhuǎn)或者移動(dòng)的磁鐵配合，產(chǎn)品可用于角度，距離和水平面測(cè)量，輸出脈寬調(diào)制信號(hào)或者串行雙相M信號(hào)。磁場(chǎng)范圍、輸出特性、輸出格式、敏感度、飄移（脈寬調(diào)制輸出占空比或者串行輸出字）、脈寬段區(qū)間、高低電流和溫度系數(shù)等主要特性，可以輕易地通過在非易失性內(nèi)存中編程來根據(jù)磁場(chǎng)調(diào)節(jié)（線性或者角度）。設(shè)置方法是9位32點(diǎn)標(biāo)定。產(chǎn)品將線性磁場(chǎng)轉(zhuǎn)換為任意輸出信號(hào)或者將非線性磁場(chǎng)轉(zhuǎn)換為線性輸出信號(hào)。有小尺寸含鉛TO-92UT封裝。

特性 Features

·High-precision linear Hall effect sensors with different output formats
·Various programmable magnetic characteristics with non-volatile memory
·Programmable output characteristic (32 setpoints with 9 bit resolution)
·Programmable output formats (PWM or serial Biphase-M)
·Programmable PWM Period
·Open-drain output for HAL 855
·Programmable output current source for HAL 856 (low and high current)
·Digital signal processing
·Temperature characteristics program-mable for matching all common magnetic materials
·Programming by modulation of the supply voltage
·Lock function and built-in redundancy for EEPROM memory
·Operates from –40 °C up to 150 °C ambient temperature
·Operates from 4.5 V up to 18 V supply voltage Operates with static magnetic fields and dynamic magnetic fields up to 2 kHz
·Choppered offset compensation
·Overvoltage protection on all pins
·Reverse-voltage protection on VDD pins
·Magnetic characteristics extremely robust against mechanical stress
·Short-circuit protected output
·EMC-optimized design