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SGM8704 micro-power, cmos input, rrio, 1.4v, push-pull output comparator general description the SGM8704 is an ultra low power comparator with a typical power supply current of 300na. it has the best-in-class power supply current versus propagation delay performance. the propagation delay is as low as 6 s with 100mv overdrive at 1.4v supply. designed to operate over a wide range of supply voltages, from 1.4v to 5.5v, with guaranteed operation at 1.4v, 2.5v and 5.0v, the SGM8704 is ideal for use in a variety of battery-powered applications. with rail-to-rail common mode voltage range, the SGM8704 is well suited for single-supply operation. the SGM8704 features complementary outputs and has a latch enable input ( le ). its small packages make this device ideal for use in handheld electronics and mobile phone applications. featuring a push-pull output stage, the SGM8704 allows for operation with absolute minimum power consumption when driving any capacitive or resistive load. SGM8704 is available in green soic-8 and msop-8 packages. it is rated over the -40c to +85c temperature range. features ultra low power consumption: 300na (typ) at v s = 1.4v wide supply voltage range: 1.4v to 5.5v propagation delay: 6 s (typ) at v s = 1.4v push-pull output current drive: 19ma (typ) at v s = 5v rail-to-rail input latch function included -40 to +85 operating temperature range available in green soic-8 and msop-8 packages applications rc timers window detectors ir receiver multivibrators alarm and monitoring circuits rev. a. 2 sg micro corp www.sg-micro.com
micro-power, cmos input, rrio, 1.4v, SGM8704 push-pull output comparator 2 sg micro corp www.sg-micro.com package/ordering information model pin- package specified temperature range ordering number package marking package option soic-8 -40 to +85 SGM8704ys8g/tr SGM8704ys8 tape and reel, 2500 SGM8704 msop-8 -40 to +85 SGM8704yms8g/tr SGM8704yms8 tape and reel, 3000 absolute maximum ratings supply voltage, +v s to -v s ...???????????.??..6v v in differential???????????...?...?.?...........2.5v voltage at input/output pins???..(-v s ) - 0.3v to (+v s ) + 0.3v operating temperature range .................. ..........-40 to +85 junction temperature....................................................... 150 storage temperature.........................................-65 to +150 lead temperature (soldering, 10s) ...................................260 esd susceptibility hbm.................... ..................... ...................... ............. ......3000v mm..................................................................................... 300v note: stresses beyond those listed under ?absolute maximum ratings? may cause permanent damage to the device. these are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the s pecifications is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. pin configurations (top view) 5 6 7 8 1 2 3 4 SGM8704 soic-8/msop-8 v in+ v in- n.c. v out -v s le +v s v out caution this integrated circuit can be damaged by esd if you don?t pay attention to esd protection. sgmicro recommends that all integrated circuits be handled with appropriate precautions. failure to observe proper handling and installation procedures can cause damage. esd damage can range from subtle performance degradation to complete device failure. precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. sgmicro reserves the right to make any change in circuit design, specification or other related things if necessary without notice at any time. please contact sgmicro sales office to get the latest datasheet.
micro-power, cmos input, rrio, 1.4v, SGM8704 push-pull output comparator 3 sg micro corp www.sg-micro.com electrical characteristics: v s = 1.4v (at t a = 25c, +v s = 1.4v, -v s = 0v, v le = 1.4v, v cm = +v s /2 and v o = -v s , unless otherwise noted.) parameter symbol conditions min typ max units v cm = 0.3v 300 1000 supply current i s v cm = 1.1v 250 1000 na v cm = 0v -3 0.5 3 input offset voltage v os v cm = 1.4v -3 0.5 3 mv input offset average drift 2 v/ v cm stepped from 0v to 0.3v 65 v cm stepped from 0.8v to 1.4v 75 common mode rejection ratio cmrr v cm stepped from 0v to 1.4v 75 db power supply rejection ratio psrr 66 95 db latch enable pin high input voltage v ih 1.0 v latch enable pin low input voltage v il 0.25 v latch enable pin bias current i ih , i il v le = 0v and v le = 1.4v 3 na large signal voltage gain a vo 100 db v s = 1.8v, i o = 500 a 1.598 1.669 -40 t a +85 1.581 v s = 1.8v, i o = 1ma 1.324 1.508 output swing high v oh v out , out v -40 t a +85 1.288 v v s = 1.8v, i o = -500 a 82 112 -40 t a +85 127 v s = 1.8v, i o = -1ma 167 225 output swing low v ol v out , out v -40 t a +85 253 mv source v out , out v 0.7 output current i out sink v out , out v 2.0 ma overdrive = 10mv 12 propagation delay (high to low) v out , out v overdrive = 100mv 6 s overdrive = 10mv 26 propagation delay (low to high) v out , out v overdrive = 100mv 17 s overdrive = 10mv, c l = 30pf, r l = 1m ? 220 rise time t rise v out , out v overdrive = 100mv, c l = 30pf, r l = 1m ? 220 ns overdrive = 10mv, c l = 30pf, r l = 1m ? 250 fall time t fall v out , out v overdrive = 100mv, c l = 30pf, r l = 1m ? 250 ns
micro-power, cmos input, rrio, 1.4v, SGM8704 push-pull output comparator 4 sg micro corp www.sg-micro.com electrical characteristics: v s = 2.5v (at t a = 25c, +v s = 2.5v, -v s = 0v, v le = 2.5v, v cm = +v s /2 and v o = -v s , unless otherwise noted.) parameter symbol conditions min typ max units v cm = 0.3v 310 supply current i s v cm = 2.2v 260 na v cm = 0v 0.5 input offset voltage v os v cm = 2.5v 0.5 mv input offset average drift v cm = 0v 2 v/ v cm stepped from 0v to 1.4v 75 v cm stepped from 1.9v to 2.5v 80 common mode rejection ratio cmrr v cm stepped from 0v to 2.5v 80 db power supply rejection ratio psrr 95 db latch enable pin high input voltage v ih 1.2 v latch enable pin low input voltage v il 0.4 v latch enable pin bias current i ih , i il v le = 0v and v le = 2.5v 15 na large signal voltage gain a vo 100 db i o = 500 a 2.419 output swing high v oh v out , out v i o = 1ma 2.333 v i o = -500 a 66 output swing low v ol v out , out v i o = -1ma 133 mv source v out , out v 5.3 output current i out sink v out , out v 7.7 ma overdrive = 10mv 12 propagation delay (high to low) v out , out v overdrive = 100mv 5 s overdrive = 10mv 28 propagation delay (low to high) v out , out v overdrive = 100mv 19 s overdrive = 10mv, c l = 30pf, r l = 1m ? 120 rise time t rise v out , out v overdrive = 100mv, c l = 30pf, r l = 1m ? 120 ns overdrive = 10mv, c l = 30pf, r l = 1m ? 75 fall time t fall v out , out v overdrive = 100mv, c l = 30pf, r l = 1m ? 75 ns
micro-power, cmos input, rrio, 1.4v, SGM8704 push-pull output comparator 5 sg micro corp www.sg-micro.com electrical characteristics: v s = 5v (at t a = 25c, +v s = 5v, -v s = 0v, v le = 5v, v cm = +v s /2 and v o = -v s , unless otherwise noted.) parameter symbol conditions min typ max units v cm = 0.3v 350 2000 supply current i s v cm = 4.7v 300 2000 na v cm = 0v -3 0.5 3 input offset voltage v os v cm = 5v -3 0.5 3 mv input offset average drift v cm = 0v 2 v/ v cm stepped from 0v to 3.9v 85 v cm stepped from 4.4v to 5v 85 common mode rejection ratio cmrr v cm stepped from 0v to 5v 85 db power supply rejection ratio psrr 66 95 db latch enable pin high input voltage v ih 2.0 v latch enable pin low input voltage v il 0.8 v latch enable pin bias current i ih , i il v le = 0v and v le = 5v 60 na latch propagation delay t lpd v s = 3v 90 ns large signal voltage gain a vo 105 db i o = 500 a 4.923 4.952 -40 t a +85 4.916 i o = 1ma 4.864 4.904 output swing high v oh v out , out v -40 t a +85 4.848 v i o = -500 a 52 80 -40 t a +85 90 i o = -1ma 104 131 output swing low v ol v out , out v -40 t a +85 143 mv v out , out v 14 18 source -40 t a +85 12 v out , out v 15 19 output current i out sink -40 t a +85 12.9 ma overdrive = 10mv 13 propagation delay (high to low) v out , out v overdrive = 100mv 6 s overdrive = 10mv 42 propagation delay (low to high) v out , out v overdrive = 100mv 33 s overdrive = 10mv, c l = 30pf, r l = 1m ? 85 rise time t rise v out , out v overdrive = 100mv, c l = 30pf, r l = 1m ? 85 ns overdrive = 10mv, c l = 30pf, r l = 1m ? 70 fall time t fall v out , out v overdrive = 100mv, c l = 30pf, r l = 1m ? 60 ns
micro-power, cmos input, rrio, 1.4v, SGM8704 push-pull output comparator 6 sg micro corp www.sg-micro.com simplified schematic diagram + - + - +v s i nn -v s i np inverters v out v out le
micro-power, cmos input, rrio, 1.4v, SGM8704 push-pull output comparator 7 sg micro corp www.sg-micro.com typical performance characteristics propagation delay (v out ) vs. overdrive 0 5 10 15 20 25 30 35 40 0 100 200 300 400 500 overdrive (mv) propagation delay l-h ( s) v s = 1.4v v cm = 0.5v -40 +25 + 85 propagation delay (v out ) vs. overdrive 0 10 20 30 40 50 60 0 100 200 300 400 500 overdrive (mv) propagation delay l-h ( s) v s = 2.5v v cm = 0.5v -40 +25 +85 propagation delay (v out ) vs. overdrive 0 10 20 30 40 50 60 70 0 100 200 300 400 500 overdrive (mv) propagation delay l-h ( s) v s = 5v v cm = 0.5v -40 +25 +85 propagation delay (v out ) vs. overdrive 0 5 10 15 20 25 30 0 100 200 300 400 500 overdrive (mv) propagation delay l-h ( s) v s = 1.4v v cm = 0.9v -40 +25 +85 propagation delay (v out ) vs. overdrive 0 5 10 15 20 25 30 35 40 0 100 200 300 400 500 overdrive (mv) propagation delay h-l ( s) v s = 1.4v v cm = 0.5v -40 +25 +85 propagation delay (v out ) vs. overdrive 0 10 20 30 40 50 60 0 100 200 300 400 500 overdrive (mv) propagation delay h-l ( s) v s = 2.5v v cm = 0.5v -40 +85 +25 propagation delay (v out ) vs. overdrive 0 10 20 30 40 50 60 70 0 100 200 300 400 500 overdrive (mv) propagation delay h-l ( s) v s = 5v v cm = 0.5v -40 +25 +85 propagation delay (v out ) vs. overdrive 0 5 10 15 20 25 30 0 100 200 300 400 500 overdrive (mv) propagation delay h-l ( s) v s = 1.4v v cm = 0.9v -40 +25 +85
micro-power, cmos input, rrio, 1.4v, SGM8704 push-pull output comparator 8 sg micro corp www.sg-micro.com typical performance characteristics propagation delay (v out ) vs. overdrive 10 15 20 25 30 35 40 45 50 0 100 200 300 400 500 overdrive (mv) propagation delay l-h ( s) v s = 5v v cm = 4.5v -40 +25 +85 propagation delay (v out ) vs. common mode input 0 10 20 30 40 50 0 0.2 0.4 0.6 0.8 1 1.2 1.4 common mode voltage (v) propagation delay l-h ( s) v s = 1.4v v od = 20mv -40 +25 + 85 s) v s = 2.5v v od = 20mv -40 +25 +85 propagation delay (v out ) vs. common mode input 0 15 30 45 60 75 90 012345 common mode voltage (v) propagation delay l-h ( s) v s = 5v v od = 20mv -40 +25 +85 propagation delay (v out ) vs. overdrive 0 5 10 15 20 25 30 35 40 0 100 200 300 400 500 overdrive (mv) propagation delay h-l ( s) v s = 5v v cm = 4.5v -40 +25 +85 propagation delay (v out ) vs. common mode input 0 10 20 30 40 50 0 0.2 0.4 0.6 0.8 1 1.2 1.4 common mode voltage (v) propagation delay h-l ( s) v s = 1.4v v od = 20mv -40 +25 + 85 s) v s = 2.5v v od = 20mv -40 +25 +85 propagation delay (v out ) vs. common mode input 0 10 20 30 40 50 60 012345 common mode voltage (v) propagation delay h-l ( s) v s = 5v v od = 20mv -40 +25 +85
micro-power, cmos input, rrio, 1.4v, SGM8704 push-pull output comparator 9 sg micro corp www.sg-micro.com typical performance characteristics propagation delay (v out ) vs. common mode input 0 5 10 15 20 25 012345 common mode voltage (v) propagation delay h-l ( s) v s = 5v v od = 20mv -40 +25 +85 propagation delay (v out ) vs. supply voltage 0 20 40 60 80 123456 supply voltage (v) propagation delay l-h ( s) -40 +25 +85 v cm = v s /2 v od = 20mv propagation delay (v out ) vs. supply voltage 0 10 20 30 40 123456 supply voltage (v) propagation delay h-l ( s) -40 +25 +85 v cm = v s /2 v od = 20mv propagation delay (v out ) vs. resistive load 0 2 4 6 8 10 12 14 1 10 100 1000 resistive load (k ? ) propagation delay (s) v s = 1.4v l-h h-l propagation delay (v out ) vs. common mode input 0 5 10 15 20 25 012345 common mode voltage (v) propagation delay l-h ( s) v s = 5v v od = 20mv -40 +25 +85 propagation delay (v out ) vs. supply voltage 0 20 40 60 80 123456 supply voltage (v) propagation delay h-l ( s) - 40 +85 v cm = v s /2 v od = 20mv propagation delay (v out ) vs. supply voltage 0 10 20 30 40 123456 supply voltage (v) propagation delay l-h ( s) -40 +25 +85 v cm = v s /2 v od = 20mv propagation delay (v out ) vs. resistive load 0 2 4 6 8 10 12 14 1 10 100 1000 resistive load (k ? ) propagation delay (s) v s = 1.4v l-h h-l
micro-power, cmos input, rrio, 1.4v, SGM8704 push-pull output comparator 10 sg micro corp www.sg-micro.com typical performance characteristics propagation delay (v out ) vs. resistive load 0 5 10 15 20 25 30 1 10 100 1000 resistive load (k ? ) propagation delay (s) v s = 5v l-h h-l propagation delay (v out ) vs. overdrive 0 5 10 15 20 25 30 35 1 10 100 1000 overdrive ( mv ) propagation delay ( s) v s = 1.4v v cm = v s /2 l-h h-l propagation delay (v out ) vs. overdrive 0 10 20 30 40 50 1 10 100 1000 overdrive (mv) propagation delay ( s) v s = 5v v cm = v s /2 l-h h-l supply current vs. supply voltage 0 100 200 300 400 500 600 0123456 supply voltage (v) supply current (na) -40 +25 +85 v cm = 0.8v propagation delay (v out ) vs. resistive load 0 5 10 15 20 25 30 1 10 100 1000 resistive load (k ? ) propagation delay (s) v s = 5v l-h h-l propagation delay (v out ) vs. overdrive 0 5 10 15 20 25 30 35 1 10 100 100 0 overdrive (mv) propagation delay ( s) v s = 1.4v v cm = v s /2 h-l l-h propagation delay (v out ) vs. overdrive 0 5 10 15 20 25 30 35 40 1 10 100 1000 overdrive (mv) propagation delay ( s) v s = 5v v cm = v s /2 h-l l-h supply current vs. common mode input 0 100 200 300 400 500 600 0 0.3 0.6 0.9 1.2 1.5 common mode input (v) supply current (na) -40 +25 +85 v s = 1.4v
micro-power, cmos input, rrio, 1.4v, SGM8704 push-pull output comparator 11 sg micro corp www.sg-micro.com typical performance characteristics supply current vs. common mode input 0 100 200 300 400 500 600 0 0.5 1 1.5 2 2.5 common mode input (v) supply current (na) -40 +25 +85 v s = 2.5v short circuit sinking current vs. supply voltage 0 5 10 15 20 25 30 0123456 supply voltage (v) output current sinking (ma) -40 +25 + 85 output voltage low vs. sink current 0 0.1 0.2 0.3 0.4 0.5 0.6 0123456 sink current (ma) output voltage referenced to gnd (v) v s = 1.4v v s = 2.5v v s = 5v output voltage high vs. source current 0 0.1 0.2 0.3 0.4 0.5 0.6 0123456 source current (ma) output voltage referenced to v s (v) v s = 1.4v v s = 2.5v v s = 5v supply current vs. common mode input 100 200 300 400 500 600 700 012345 common mode input (v) supply current (na) -40 +25 +85 v s = 5v short circult sourcing current vs. supply voltage 0 5 10 15 20 25 30 0123456 supply voltage (v) output current sourcing (ma) -40 +25 +85 output voltage low vs. sink current 0 0.1 0.2 0.3 0.4 0.5 0.6 0123456 sink current (ma) output voltage referenced to gnd (v) -40 +25 +85 output voltage high vs. source current 0 0.1 0.2 0.3 0.4 0.5 0.6 0123456 source current (ma) output voltage referenced to v s (v) -40 +25 +85
micro-power, cmos input, rrio, 1.4v, SGM8704 push-pull output comparator 12 sg micro corp www.sg-micro.com typical performance characteristics offset voltage vs. common mode input 0 200 400 600 800 1000 1200 1400 1600 012345 common mode input (v) offset voltage ( v) -40 +25 +85 v s = 5v
micro-power, cmos input, rrio, 1.4v, SGM8704 push-pull output comparator 13 sg micro corp www.sg-micro.com timing diagram t pd t lpd v od out differential input voltage v os v oh v ol v s /2 v s 0 v s /2 le figure 1. timing diagram with latch operator
micro-power, cmos input, rrio, 1.4v, SGM8704 push-pull output comparator 14 sg micro corp www.sg-micro.com package outline dimensions soic-8 d e e1 e b a a2 a1 c l 1.27 0.6 2.2 5.2 recommended land pattern (unit: mm) dimensions in millimeters dimensions in inches symbol min max min max a 1.350 1.750 0.053 0.069 a1 0.100 0.250 0.004 0.010 a2 1.350 1.550 0.053 0.061 b 0.330 0.510 0.013 0.020 c 0.170 0.250 0.006 0.010 d 4.700 5.100 0.185 0.200 e 3.800 4.000 0.150 0.157 e1 5.800 6.200 0.228 0.244 e 1.27 bsc 0.050 bsc l 0.400 1.270 0.016 0.050 0 8 0 8
micro-power, cmos input, rrio, 1.4v, SGM8704 push-pull output comparator 15 sg micro corp www.sg-micro.com package outline dimensions msop-8 e1 e e d a1 l c a a2 b recommended land pattern (unit: mm) 1.02 0.41 0.65 4.8 dimensions in millimeters dimensions in inches symbol min max min max a 0.820 1.100 0.032 0.043 a1 0.020 0.150 0.001 0.006 a2 0.750 0.950 0.030 0.037 b 0.250 0.380 0.010 0.015 c 0.090 0.230 0.004 0.009 d 2.900 3.100 0.114 0.122 e 2.900 3.100 0.114 0.122 e1 4.750 5.050 0.187 0.199 e 0.650 bsc 0.026 bsc l 0.400 0.800 0.016 0.031 0 6 0 6
micro-power, cmos input, rrio, 1.4v, SGM8704 push-pull output comparator 16 sg micro corp www.sg-micro.com tape and reel information note: the picture is only for reference. please make the object as the standard. key parameter list of tape and reel package type reel diameter reel width w1 (mm) a0 (mm) b0 (mm) k0 (mm) p0 (mm) p1 (mm) p2 (mm) w (mm) pin1 quadrant soic-8 13 12.4 6.4 5.4 2.1 4.0 8.0 2.0 12.0 q1 msop-8 13 12.4 5.2 3.3 1.5 4.0 8.0 2.0 12.0 q1 reel width (w1) reel diameter reel dimensions tape dimensions direction of feed p2 p0 w p1 a0 k0 b0 q1 q2 q4 q3 q3 q4 q2 q1 q3 q4 q2 q1
micro-power, cmos input, rrio, 1.4v, SGM8704 push-pull output comparator 17 sg micro corp www.sg-micro.com carton box dimensions note: the picture is only for reference. please make the object as the standard. key parameter list of carton box reel type length (mm) width (mm) height (mm) pizza/carton 13? 386 280 370 5

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