general description the max6607/max6608 precision, low-voltage, analog output temperature sensors are available in 5-pin sc70 and sot23 packages. the devices have a +1.8v to +3.6v supply voltage range and 8? supply current over the -20 c to +85 c temperature range. accuracy is ?.6? (typ) from t a = +20 c to +50 c and is ?.7 c (typ) from t a = 0 c to +70 c. the max6607/max6608 output voltage depends on its die temperature and has a slope of 10mv/ c and an offset of 500mv at 0 c. ________________________applications cellular phones digital cameras battery packs portable equipment gps equipment features operate down to 1.8v supply low current consumption (15a max) small sc70 and sot23 packages 2.0 c (max) accuracy from +20 c to +50 c optimized to drive capacitive loads up to 1000pf max6607/max6608 low-voltage analog temperature sensors in sc70 and sot23 packages ________________________________________________________________ maxim integrated products 1 out gnd 1nf gnd gnd adc in v cc v cc a v cc c max6607 max6608 c s = 0.2 f typical application circuit 19-2040; rev 1; 6/01 ordering information part temp. range pin-package max6607 ixk-t -20 c to +85 c 5-sc70-5 max6608 iuk-t -20 c to +85 c 5-sot23-5 pin configurations out v cc a 15 gnd n.c. max6607 sc70 top view 2 34 n.c. v cc a 15 out gnd max6608 sot23 2 34 for pricing, delivery, and ordering information, please contact maxim/dallas direct! at 1-888-629-4642, or visit maxim? website at www.maxim-ic.com.
max6607/max6608 low-voltage analog temperature sensors in sc70 and sot23 packages 2 _______________________________________________________________________________________ absolute maximum ratings electrical characteristics (v cc = +1.8v to +3.6v, c l = 1nf, t a = -20 c to +85 c, typical values are at t a = +25 c, unless otherwise noted.) (note 1) stresses beyond those listed under ?bsolute maximum ratings?may cause permanent damage to the device. these are stress rating s only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specificatio ns is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. note 1: all parameters are measured at t a = +25 c. specifications over temperature range are guaranteed by design. note 2: not production tested, guaranteed by design. v cc to gnd ..............................................................-0.3v to +6v out, a to gnd...........................................-0.3v to (v cc + 0.3v) esd protection (human body model) .............................>2000v current into any pin ............................................................10ma output short-circuit duration.....................................continuous continuous power dissipation (t a = +70 c) 5-pin sc70 (derate 3.1mw/ c above +70 c) ..............245mw 5-pin sot23 (derate 7.1mw/ c above +70 c)............571mw operating temperature range .........................-55 c to +125 c junction temperature ......................................................+150 c storage temperature range .............................-65 c to +150 c lead temperature (soldering, 10s) .................................+300 c parameter symbol conditions min typ max units t a = +20 c to +50 c -2.0 0.6 +2.0 t a = 0 c to +70 c -3.5 0.7 +3.5 t a = -10 c to +85 c -5.0 1.0 +5.0 temperature error v cc = +2.4v t a = -20 c to -10 c -6.0 1.5 +6.0 c supply voltage v cc 1.8 3.6 v t a = +70 c 1000 t a = +80 c 500 maximum rate of rise of supply voltage (note 2) v cc < 2.8v t a = +85 c 100 v/s supply current i q no load 8 15 a output voltage v out t a = 0 c 500 mv sensor gain (average slope) 10 mv/ c maximum capacitive load 1nf load regulation i out = -1.2a to +20a 0.15 0.2 c/a line regulation 0.3 0.9 c/v
max6607/max6608 low-voltage analog temperature sensors in sc70 and sot23 packages _______________________________________________________________________________________ 3 0 400 200 800 600 1200 1000 1400 -20 0 10 20 -10 30 40 50 60 70 80 output voltage vs. temperature max6607/08 toc01 temperature ( c) output voltage (mv) -1.0 -0.2 -0.6 0.6 0.2 1.0 -20 25 40 -5 10 55 70 85 temperature error vs. temperature max6607/08 toc02 temperature ( c) temperature error ( c) 0 4 2 8 6 12 10 14 023 145 supply current vs. supply voltage max6607/08 toc03 supply voltage (v) supply current ( a) t a = +25 c 5 7 6 9 8 11 10 12 -40 -10 5 -25 20 35 50 65 80 supply current vs. temperature max6607/08 toc4 temperature ( c) supply current ( a) v cc = +1.8v v cc = +3.3v 700 730 720 710 740 750 760 770 output voltage vs. supply voltage max6607/08 toc05 supply voltage (v) output voltage (mv) 023 1 456 t a = +25? 1s/div step response from +25 c to +80 c flourinert bath out 200mv/div max6607/08 toc06 0 typical operating characteristics (v cc = +1.8v, c s = 0.1f, c l = 1nf, unless otherwise noted.)
detailed description the max6607/max6608 analog output temperature sensors output voltage is a linear function of its die temperature. the slope of the output voltage is 10mv/ c, and there is a 500mv offset at 0 c to allow measurement of negative temperatures. the maximum supply current is 15 a, and the supply voltage range is from +1.8v to +3.6v for the -20 c to +85 c tempera- ture range. transfer function the temperature-to-voltage transfer function has an approximately linear positive slope and can be described by the equation: v out = 500mv + (t ? 10mv/ c) where t is the die temperature of the max6607/ max6608 in c. therefore: t ( c) = (v out - 500mv) / 10mv/ c applications information sensing circuit board and ambient temperatures temperature sensor ics like the max6607/max6608 that sense their own die temperatures must be mount- ed on, or close to, the object whose temperature they are intended to measure. because there is a good ther- mal path between the package s metal leads and the ic die, the max6607/max6608 can accurately measure the temper ature of the circuit board to which it is sol- dered. if the sensor is intended to measure the tempera- ture of a heat-generating component on the circuit board, it should be mounted as close as possible to that compo- nent and should share supply and ground traces (if they are not noisy) with that component where possible. this maximizes the heat transfer from the component to the sensor. the thermal path between the plastic package and the die is not as good as the path through the leads, so the max6607/max6608, like all temperature sensors in plas- tic packages, are less sensitive to the temperature of the surrounding air than they are to the temperature of their leads. they can be successfully used to sense ambient temperature if the circuit board is designed to track the ambient temperature. as with any ic, the wiring and circuits must be kept insu- lated and dry to avoid leakage and corrosion, especially if the part is operated at cold temperatures where conden- sation can occur. the error introduced by the part self-heating is negligible. chip information transistor count: 111 process: bicmos max6607/max6608 low-voltage analog temperature sensors in sc70 and sot23 packages 4 _______________________________________________________________________________________ pin description pin sc70 sot23 name function 1 5 out temperature sensor output 2 1 n.c. not connected 3 3 a must be connected to gnd. 44v cc supply input. decouple with a 0.1 f capacitor to gnd. 5 2 gnd ground
low-voltage analog temperature sensors in sc70 and sot23 packages max6607/max6608 package information sc70 , 5l.eps _______________________________________________________________________________________ 5
max6607/max6608 low-voltage analog temperature sensors in sc70 and sot23 packages maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a maxim product. no circu it patent licenses are implied. maxim reserves the right to change the circuitry and specifications without notice at any time. 6 _____________________maxim integrated products, 120 san gabriel drive, sunnyvale, ca 94086 408-737-7600 ? 2001 maxim integrated products printed usa is a registered trademark of maxim integrated products. package information (contnued)
e nglish ? ???? ? ??? ? ??? what's ne w p roducts solutions de sign ap p note s sup p ort buy comp any me mbe rs max6608 part number table notes: see the max6608 quickview data sheet for further information on this product family or download the max6608 full data sheet (pdf, 140kb). 1. other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales . 2. didn't find what you need? ask our applications engineers. expert assistance in finding parts, usually within one business day. 3. part number suffixes: t or t&r = tape and reel; + = rohs/lead-free; # = rohs/lead-exempt. more: see full data sheet or part naming c onventions . 4. * some packages have variations, listed on the drawing. "pkgc ode/variation" tells which variation the product uses. 5. part number free sample buy direct package: type pins size drawing code/var * temp rohs/lead-free? materials analysis max6608i/d rohs/lead-free: no max6608iuk+ sot-23;5 pin; dwg: 21-0057f (pdf) use pkgcode/variation: u5+2 * -40c to +85c rohs/lead-free: yes materials analysis max6608iuk sot-23;5 pin; dwg: 21-0057f (pdf) use pkgcode/variation: u5-2 * -40c to +85c rohs/lead-free: no materials analysis max6608iuk-t sot-23;5 pin; dwg: 21-0057f (pdf) use pkgcode/variation: u5-2 * -40c to +85c rohs/lead-free: no materials analysis max6608iuk+t sot-23;5 pin; dwg: 21-0057f (pdf) use pkgcode/variation: u5+2 * -40c to +85c rohs/lead-free: yes materials analysis didn't find what you need? c ontac t us: send us an email c opyright 2 0 0 7 by m axim i ntegrated p roduc ts , dallas semic onduc tor ? legal n otic es ? p rivac y p olic y
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