描述 Description

HAL 810和HAL 817是可編程線性霍爾傳感器，可用于角度或者距離測量。主要參數(shù)是在非易失內(nèi)存中進(jìn)行編程的。HAL 817有比例輸出特性。輸出電壓與磁通量和供電電壓成比例。HAL 810提供脈寬調(diào)制輸出。產(chǎn)品有帶斬波偏置補(bǔ)償?shù)臏囟妊a(bǔ)償霍爾片，交流直流轉(zhuǎn)換器，為標(biāo)定數(shù)據(jù)而設(shè)的冗余和鎖定功能，以及各引腳的保護(hù)裝置。數(shù)據(jù)信號處理，模擬偏置，溫度飄移和機(jī)械應(yīng)力都不會降低傳感器的精確性。傳感器、磁場和機(jī)械位置形成的偏差可以由客戶／用戶在最后裝配時通過編程來補(bǔ)償。這是對近來需要機(jī)械調(diào)整或者激光修正來標(biāo)定的各種應(yīng)用的低成本替代方案。HAL 810和HAL 817設(shè)計適用于惡劣環(huán)境下的汽車和工業(yè)應(yīng)用，供電電壓5伏，溫度從?40 °C 到 170 °C注：HAL 817替代以前版本的HAL 805和HAL 815。封裝是小尺寸含鉛TO92UT。

特性 Features

·Sensitivity drift over temperature less than ±400 ppm/K
·Offset drift over temperature less than ±10 μT/K
·Integral non-linearity error of output signal ±0.5% of VDD
·Ratiometric error of output signal ±0.5%
·Low output noise of 6 mV RMS
·Wire break detection
·Programmable magnetic ranges between ±30 and ±150 mT
·Five programmable 3 dB filter frequencies
·Programmable sensitivity, offset (VOQ) and clamping
·12-bit ratiometric analog output
·Digital signal processing
·Temperature characteristics programmable to match all common magnetic materials
·Programming by modulation of the supply voltage
·Operates with static magnetic fields and dynamic magnetic fields up to 2 kHz
·Short-circuit protected push-pull output
·Overvoltage and reverse-voltage protection at all pins
·Operates from –40 °C up to 170 °C junction temperature
·Operates from 4.5 V up to 5.5 V supply voltage
·Magnetic characteristics extremely robust against mechanical stress