MMLP57F tmr linear sensor page 1 nanjing nanjing nanjing nanjing ouzhuo ouzhuo ouzhuo ouzhuo technology technology technology technology co., co., co., co., ltd ltd ltd ltd www.ohhall.com www.zbling.com tel 86- 25-52312738 86-25- 83247886 fax: 86-25-52312738 e-mail: ohhall@163.com general general general general description description description description the MMLP57F linear sensor utilizes a unique push-pull wheatstone bridge composed of four unshielded tmr sensor elements. the unique bridge design provides a high sensitivity differential output that is linearly proportional to a magnetic field applied parallel to the surface of the sensor package, and it provides superior temperature compensation of the output. the MMLP57F is available in a 6 mm 5 mm 1.7 mm sop8 package. features features features features and and and and benefits benefits benefits benefits n tunneling magnetoresistance (tmr) technology n compatible with wide range of supply voltages n extremely low power consumption n excellent thermal stability n very low hysteresis absolute absolute absolute absolute maximum maximum maximum maximum ratings ratings ratings ratings parameter symbol limit unit supply voltage vcc 7 v storage temperature tstg -50 ~ 150 c magnetic field b 2000 oe1 esd level 4000 v specification specification specification specification (v (v (v (v cc cc cc cc =1.0v, =1.0v, =1.0v, =1.0v, ta ta ta ta =25 =25 =25 =25 c, c, c, c, differential differential differential differential output) output) output) output) parameter symbol conditions min typ max unit supply voltage vcc 1 5 v supply current icc 10 a resistance r 100 2 kohm sensitivity sen fit @ 30 oe 6 mv/v/oe dynamic range 70 oe linearity range 1% non-linearity 30 oe offset voltage vo 5 mv/v hysteresis hys fit @ 30 oe 0.2 % offset temperature drift vot h = 0 oe 0.01 mv/v/ c tcov -0.1 %/ c operation temperature ta -40 125 c note: 1 oe (oersted) = 1 gauss in air = 0.1 millitesla = 79.8 a/m 2 custom sensor resistance may be available upon request. please contact multi-dimension technology for more details. applications applications applications applications n magnetic field sensing n current sensors n displacement sensing n rotary position sensors
MMLP57F tmr linear sensor page 2 nanjing nanjing nanjing nanjing ouzhuo ouzhuo ouzhuo ouzhuo technology technology technology technology co., co., co., co., ltd ltd ltd ltd www.ohhall.com www.zbling.com tel 86- 25-52312738 86-25- 83247886 fax: 86-25-52312738 e-mail: ohhall@163.com transfer transfer transfer transfer curve curve curve curve the following figure shows the response of the MMLP57F to an applied magnetic field in the range of 30 oe (left) and 200 oe (right) when the MMLP57F is biased at 1 v. at low fields the MMLP57F response is highly linear, and it is not harmed when the sensor is driven into saturation. block block block block diagram diagram diagram diagram n pin pin pin pin configuration configuration configuration configuration top view (top view) pin no. pin name pin function 1, 2, 7, 8 n/a not connected 3 gnd ground 4 v- analog differential output 2 5 v+ analog differential output 1 6 vcc supply voltage
MMLP57F tmr linear sensor page 3 nanjing nanjing nanjing nanjing ouzhuo ouzhuo ouzhuo ouzhuo technology technology technology technology co., co., co., co., ltd ltd ltd ltd www.ohhall.com www.zbling.com tel 86- 25-52312738 86-25- 83247886 fax: 86-25-52312738 e-mail: ohhall@163.com package package package package information information information information tmr tmr tmr tmr sensor sensor sensor sensor position position position position
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