optek technology inc. ? 1645 wallace drive, carrollton, texas 75006 phone: (972) 323-2200 or (800) 341-4747 fax: (972) 3 23-2396 sensors@optekinc .com www. optekinc.com issue a 01/07 page 1 of 3 optical comparator array opr5011 optek reserves the right to make changes at any time in or der to improve design and to s upply the best product possible. description: each opr5011 device is a hybrid sensor array that consists of three channels of the optek opc8332 differential optical comparator (?tri-doc?) ic. the single chip c onstruction ensures very tight dimensional tolerances between active areas. specifically designed for high-speed/hi gh-resolution encoder applications, the open collector output switches based on the comparison of the input photodiode?s light cu rrent levels. logarithmic amplification of the input signals facilitates operation over a wide range of light levels. the surface-mountable opaque polyimide package shields the photodiodes from stray light and can withstand multiple exposures to the most demanding soldering conditions, while the gold-plated wraparound contacts provide exceptional storage and wetting characteristics. features: ? precise active area location ? surface mountable ? ttl compatible output ? wide supply voltage range ? wide operating temperature range applications: ? high-speed applications ? high-resolution applications ? applications requiring a wide range of light levels rohs part number sensor # of elements icc (ma) typ / max optical hysteresis (%) typical optical offset (%) min / max opr5011 differential optical comparator 3 9 / 20 40.00 -40/+40 ordering information note: see page 2 for application circuit. inches [millimeters] dimensions are in: pin # description pin # description 1 b - output 5 n.c. 2 b - vcc 6 a - output 3 a + trim 7 a - vcc pin # description pin # description 9 z + trim 13 b + trim 10 z -trim 14 b -trim 11 z - output 4 a -trim 8 common 12 z - vcc
optical comparator array opr5011 optek technology inc. ? 1645 wallace drive, carrollton, texas 75006 phone: (972) 323-2200 or (800) 341-4747 fax: (972) 3 23-2396 sensors@optekinc .com www. optekinc.com issue a 01/07 page 2 of 3 optek reserves the right to make changes at any time in or der to improve design and to s upply the best product possible. application circuit - opr5011 notes: (1) the 74l2)4 is recommended as a means of isolating the ?doc? comparator circuitr y from transients induced by inductive and capacitive loads. (2) it is recommended that a decoupling capacitor be placed as close as po ssible to the device. block diagram - opc8332
optek technology inc. ? 1645 wallace drive, carrollton, texas 75006 phone: (972) 323-2200 or (800) 341-4747 fax: (972) 3 23-2396 sensors@optekinc .com www. optekinc.com issue a 01/07 page 3 of 3 optical comparator array opr5011 optek reserves the right to make changes at any time in or der to improve design and to s upply the best product possible. absolute maximum ratings (t a = 25 c unless otherwise noted) storage and operating temper ature -40 c to +100 c supply voltage 24 v solder reflow time within 5c of peak temperature is 20 to 40 seconds (1) 250 c power dissipation 500 mw output current 14 ma output voltage 24 v electrical characteristics (t a = 25 c unless otherwise noted) symbol parameter min typ max units test conditions i cc supply current - 9 20 ma v cc = 24 v v ol low level output voltage (2) - 0.3 0.4 v i ol = 14 ma, v cc = 4.5 v i oh high level output current (3) - 0.1 1 a v cc = v o = 20 v opt-hys optical hysteresis (4)(7) - 40 - % v cc = 5 v, i ol = 1 ma opt-off optical offset (4)(7) -40 10 +40 % v cc = 5 v, i ol = 1 ma f max frequency response (5) - 1 - mhz t lh output rise time (6) - 1 - s t hl output fall time (6) - 300 - ns v cc = 5 v notes: (1) solder time less than 5 seconds at temperature extreme. (2) pin (+) = 100.0 nw and pin (-) = 1.0 w . (3) pin (+) = 1.0 w and pin (-) = 100.0 nw. (4) pin (-) is held at 1.0 w while pin (+) is ra mped from 0.5 w to 1.5 w and back to 0.5 w. (5) pin (+) is modulated from 1.0 w to 2. 0 w. pin (-) is modulated from 1.0 w to 2.0 w with phase shifted 180 with respec t to pin (+). use 100 k ? trimpot to set the output signal to 50% duty cycle for maximum operating frequency. (6) measured between 10% and 90% points. (7) optical hysteresis and optical offset are found by placi ng 1.0 w of light on the inverting photodiode and ramping the ligh t intensity of the non-inverting input from 0.5 w up to 1.5 w and back down. this will produce two trigger points ? an upper t rigger point and lower trigger point. these points are used to calculate the optical hysteresis and offset. these are defined as: % optical hysteresis = 100 x (p rise - p fall) p in (-) % optical offset = 100 x (p average - p (-)) p in (-) where: p in (-) = light level incident upon the ?-? photodiode on the ic chip (pin) (-) = 1.0 w). p rise = value of light power level incident upon the ?+? pho todiode that his required to switch the digital output when the light level is an increasing level (rising edge). p fall = value of light power level incident upon the ?+? pho todiode that is required to switch the digital output when the light level is decreasing level (falling edge). p average = (p rise + p fall) 2
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