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rev.2.1 _00 mini analog series 0.7 a rail-to-rail cmos comparator s-89530a/89531a seiko instruments inc. 1 the mini analog series is a group of ics that incorporate a general- purpose analog circuit in an ultra-small packages. the s-89530a/89531a series are cm os type comparators that feature rail-to-rail *1 i/o and can be driven at a lower voltage and lower current consumpsion than ex isting comparators, making the s- 89530a/89531a for use in battery-powered compact portable devices. *1. rail-to-rail is a registered trademark of motorola inc. ? features y can be driven lower voltage than existing general-purpose comparators: v dd = 0.9 v to 5.5 v y low current consumption: i dd = 0.7 a (typ.) y rail-to-rail *1 wide input and output voltage range: v cmr = v ss to v dd y low input offset voltage: 5.0 mv max. y small package: 5-pin sc-88a 2.0 mm 2.1 mm ? applications y cellular phones y pdas y notebook pcs y digital cameras y digital video cameras ? package package name drawing code package tape reel sc-88a np005-b np005-b np005-b ? product code list table 1 input offset voltage product name (single) v io = 10 mv max. S-89530ACNC-HCB-TF v io = 5 mv max. s-89531acnc-hcc-tf
mini analog series 0.7 a rail-to-rail cmos comparator s-89530a/89531a rev.2.1 _00 2 seiko instruments inc. ? pin configuration table 2 pin no. symbol description internal equivalent circuit 1 in( + ) non-inverted input pin figure 3 2 vss gnd pin ? 3 in( ? ) inverted input pin figure 3 4 out output pin figure 2 5 vdd positive power supply pin figure 4 sc-88a top view vdd 5 3 in ( ? ) out 4 2 vss 1 in ( + ) ? + figure 1 ? internal equivalent circuits (1) output pin (2) input pin (3) vdd pin vdd vss vdd vss vdd vss figure 2 figure 3 figure 4
mini analog series 0.7 a rail-to-rail cmos comparator rev.2.1 _00 s-89530a/89531a seiko instruments inc. 3 ? absolute maximum ratings table 3 (ta = 25 c unless otherwise specified) parameter symbol ratings unit power supply voltage v dd ? v ss 7.0 v input voltage v in v ss to v dd v output voltage v out v ss to v dd v differential input voltage v ind 5.5 v power dissipation p d 200 mw operating temperature t opr ? 40 to + 85 c storage temperature t stg ? 55 to + 125 c caution the absolute maximum ratings are rated values exceeding which the product could suffer physical damage. these values must therefore not be exceeded under any conditions. ? recommended operating voltage range table 4 parameter symbol range operating power supply voltage range v dd 0.9 v to 5.5 v
mini analog series 0.7 a rail-to-rail cmos comparator s-89530a/89531a rev.2.1 _00 4 seiko instruments inc. ? electrical characteristics the s-89530acnc and s-89531acnc only differ in the input offs et voltage. all other specifications are the same. 1. v dd = 3.0 v table 5 dc characteristics (v dd = 3.0 v) (ta = 25 c unless otherwise specified) parameter symbol conditions min. typ. max. unit measurement circuit i ddh v in1 = v ss , v in2 = v dd , r l = ? 0.7 1.4 supply current i ddl v in1 = v dd , v in2 = v ss , r l = ? 0.25 0.5 a figure 10 s-89530a: v cmr = 1.5 v ? 10 5 + 10 input offset voltage v io s-89531a: v cmr = 1.5 v ? 5 3 + 5 mv figure 6 input offset current i io ? ? 1 ? input bias current i bias ? ? 1 ? pa ? common-mode input voltage range v cmr ? 0 ? 3.0 v figure 7 voltage gain (open loop) a vol v cmr = 1.5 v, r l = 1 m ? ? 86 ? db ? v oh r l = 1 m ? 2.98 ? ? figure 8 maximum output swing voltage v ol r l = 1 m ? ? ? 0.02 v figure 9 common-mode input signal rejection ratio cmrr v ss v cmr v dd 45 65 ? db figure 7 power supply voltage rejection ratio psrr v dd = 0.9 v to 5.5 v 66 75 ? db figure 5 v out = v dd ? 0.1 v 380 500 ? source current *1 i source v out = 0 v 4000 5500 ? a figure 11 v out = 0.1 v 400 550 ? sink current i sink v out = v dd 4800 6000 ? a figure 12 *1. be sure to use the product with a source current of no more than 7 ma. table 6 ac characteristics (v dd = 3.0 v) (ta = 25 c unless otherwise specified) parameter symbol conditions min. typ. max. unit rise propagation delay time t plh ? 110 ? fall propagation delay time t phl ? 280 ? rise response time t tlh ? 10 ? fall response time t thl overdrive = 100 mv c l = 15 pf (refer to figure 13 ) ? 30 ? s
mini analog series 0.7 a rail-to-rail cmos comparator rev.2.1 _00 s-89530a/89531a seiko instruments inc. 5 2. v dd = 1.8 v table 7 dc characteristics (v dd = 1.8 v) (ta = 25 c unless otherwise specified) parameter symbol conditions min. typ. max. unit measurement circuit i ddh v in1 = v ss , v in2 = v dd , r l = ? 0.7 1.4 supply current i ddl v in1 = v dd , v in2 = v ss , r l = ? 0.25 0.5 a figure 10 s-89530a: v cmr = 0.9 v ? 10 5 + 10 input offset voltage v io s-89531a: v cmr = 0.9 v ? 5 3 + 5 mv figure 6 input offset current i io ? ? 1 ? input bias current i bias ? ? 1 ? pa ? common-mode input voltage range v cmr ? 0 ? 1.8 v figure 7 voltage gain (open loop) a vol v cmr = 0.9 v, r l = 1 m ? ? 80 ? db ? v oh r l = 1 m ? 1.78 ? ? figure 8 maximum output swing voltage v ol r l = 1 m ? ? ? 0.02 v figure 9 common-mode input v ss v cmr v dd 35 55 ? signal rejection ratio cmrr v ss v cmr v dd ? 0.2 v 45 60 ? db figure 7 power supply voltage rejection ratio psrr v dd = 0.9 v to 5.5 v 66 75 ? db figure 5 v out = v dd ? 0.1 v 200 250 ? source current i source v out = 0 v 1000 1500 ? a figure 11 v out = 0.1 v 220 300 ? sink current i sink v out = v dd 1200 1800 ? a figure 12 table 8 ac characteristics (v dd = 1.8 v) (ta = 25 c unless otherwise specified) parameter symbol conditions min. typ. max. unit rise propagation delay time t plh ? 90 ? fall propagation delay time t phl ? 160 ? rise response time t tlh ? 8 ? fall response time t thl overdrive = 100 mv c l = 15 pf (refer to figure 13 ) ? 25 ? s
mini analog series 0.7 a rail-to-rail cmos comparator s-89530a/89531a rev.2.1 _00 6 seiko instruments inc. 3. v dd = 0.9 v table 9 dc characteristics (v dd = 0.9 v) (ta = 25 c unless otherwise specified) parameter symbol conditions min. typ. max. unit measurement circuit i ddh v in1 = v ss , v in2 = v dd , r l = ? 0.7 1.3 supply current i ddl v in1 = v dd , v in2 = v ss , r l = ? 0.25 0.5 a figure 10 s-89530a: v cmr = 0.45 v ? 10 5 + 10 input offset voltage v io s-89531a: v cmr = 0.45 v ? 5 3 + 5 mv figure 6 input offset current i io ? ? 1 ? input bias current i bias ? ? 1 ? pa ? common-mode input voltage range v cmr ? 0 ? 0.9 v figure 7 voltage gain (open loop) a vol v cmr = 0.45 v, r l = 1 m ? ? 74 ? db ? v oh r l = 1 m ? 0.88 ? ? figure 8 maximum output swing voltage v ol r l = 1 m ? ? ? 0.02 v figure 9 common-mode input v ss v cmr v dd 25 50 ? signal rejection ratio cmrr v ss v cmr v dd ? 0.3 v 40 60 ? db figure 7 power supply voltage rejection ratio psrr v dd = 0.9 v to 5.5 v 66 75 ? db figure 5 v out = v dd ? 0.1 v 10 45 ? source current i source v out = 0 v 12 70 ? a figure 11 v out = 0.1 v 10 65 ? sink current i sink v out = v dd 12 120 ? a figure 12 table 10 ac characteristics (v dd = 0.9 v) (ta = 25 c unless otherwise specified) parameter symbol conditions min. typ. max. unit rise propagation delay time t plh ? 65 ? s fall propagation delay time t phl ? 65 ? s rise response time t tlh ? 5 ? s fall response time t thl overdrive = 100 mv c l = 15 pf (refer to figure 13 ) ? 20 ? s
mini analog series 0.7 a rail-to-rail cmos comparator rev.2.1 _00 s-89530a/89531a seiko instruments inc. 7 ? measurement circuits 1. power supply voltage rejection ratio + ? v out v dd v in 0.45 v figure 5 y the power supply voltage rejection ratio (psrr) is calculated by the following expr ession, with the value of v io measured at each v dd . measurement conditions: when v dd = 0.9 v: v dd = v dd1 , v io = v io1 when v dd = 5.5 v: v dd = v dd2 , v io = v io2 ? ? ? ? ? ? ? ? ? ? = io2 io1 dd2 dd1 v v v v 20log psrr 2. input offset voltage ? + v out v dd v in v cmr = v dd /2 figure 6 y input offset voltage (v io ) the input offset voltage (v io ) is defined as v in at which v out changes by changing v in .
mini analog series 0.7 a rail-to-rail cmos comparator s-89530a/89531a rev.2.1 _00 8 seiko instruments inc. 3. common-mode input signal rejection rate, common-mode input voltage range + ? v out v dd v in1 v in2 figure 7 y common-mode input signal rejection ratio (cmrr) the common-mode input signal rejection ratio, cmrr, can be calculated by the following expression, with the offset voltage (v io ) defined as v in1 minus v in2 at which v out is changed by changing v in1 . measurement conditions: when v in2 = v cmr (max.): v io = v io1 when v in2 = v cmr (min.): v io = v io2 cmrr = 20log ? ? ? ? ? ? ? ? ? ? io2 io1 cmr cmr v v (min.) v (max.) v y common-mode input voltage range (v cmr ) the common-mode input voltage range is the range of v in2 within which v out satisfies the common mode input signal rejection ratio specification. 4. maximum output swing voltage v in2 + ? v dd /2 v oh v dd v in1 r l figure 8 y maximum output swing voltage (v oh ) measurement conditions: v 0.1 2 v v dd in1 ? = v 0.1 2 v v dd in2 + = r l = 1 m ? v in2 + ? v dd /2 v ol v dd v in1 r l figure 9 y maximum output swing voltage (v ol ) measurement conditions: v 0.1 2 v v dd in1 + = v 0.1 2 v v dd in2 ? = r l = 1 m ?
mini analog series 0.7 a rail-to-rail cmos comparator rev.2.1 _00 s-89530a/89531a seiko instruments inc. 9 5. supply current v in1 v in2 + ? v out v dd a figure 10 y supply current (i ddh ) measurement conditions: v in1 = v ss v in2 = v dd y supply current (i ddl ) measurement conditions: v in1 = v dd v in2 = v ss 6. source current v in2 + ? v out v dd a v in1 figure 11 y source current (i source ) measurement conditions: v 0.1 2 v v dd in1 ? = v 0.1 2 v v dd in2 + = v out = v dd ? 0.1 v or v out = 0 v 7. sink current v in2 + ? v dd v out a v in1 figure 12 y sink current (i sink ) measurement conditions: v 0.1 2 v v dd in1 + = v 0.1 2 v v dd in2 ? = v out = 0.1 v or v out = v dd
mini analog series 0.7 a rail-to-rail cmos comparator s-89530a/89531a rev.2.1 _00 10 seiko instruments inc. 8. propagation delay time/transient response time figure 13 ? cautions y when r l = 100 k ? , v oh may rise only 0.65 v if the temperature is ? 40 c and v dd = 0.9 v. if the temperature is ? 20 c, however, v oh rises to 0.8 v, which is 100 mv below v dd , when v dd = 0.9 v, even if r l = 100 k ? . if v dd is 1.2 v, v oh rises to 0.88 v, which is 20 mv below v dd when r l = 100 k ? , even at ? 40 c. the temperature characteristics data described above can be used as reference data. note that 100% testing under these conditions has not been performed. y be sure to use the product with a source current of no more than 7 ma. y do not apply an electrostatic discharge to this ic that exceeds the performance ratings ofthe built-in electrostatic protection circuit. v out v out v oh = v dd 0.9 v ol = v dd 0.1 100 mv 100 mv in( ? ) = v dd / 2 in( + ) in( + ) t plh, t phl t tlh t thl input rise/fall time : 20 ns
mini analog series 0.7 a rail-to-rail cmos comparator rev.2.1 _00 s-89530a/89531a seiko instruments inc. 11 ? characteristics (reference data) 1. current consumption vs. power supply voltage 0.0 0.3 0.6 0.9 1.2 1.5 0123456 v dd (v) i ddh ( a ) 25 c 85 c ta = ? 40 c i ddh vs. v dd 0.0 0.1 0.2 0.3 0.4 0.5 0123456 v dd (v) i ddl ( a) 25 c 85 c ta = ? 40 c i ddl vs. v dd 2. output current 2-1. i source vs. power supply voltage i sink vs. power supply voltage 0 200 400 600 800 1000 1200 1400 1600 0123456 v dd (v) i source ( a ) 25 c 85 c ta = ? 40 c v out = v dd ? 0.1 v 0 200 400 600 800 1000 1200 1400 1600 0123456 v dd (v) i sink ( a) 25 c 85 c ta = ? 40 c v out = 0.1 v
mini analog series 0.7 a rail-to-rail cmos comparator s-89530a/89531a rev.2.1 _00 12 seiko instruments inc. 2-2. output voltage (v oh ) vs. i source 0.0 0.5 1.0 1.5 2.0 2.5 3.0 0 2000 4000 6000 8000 i source ( a) v oh (v) 25 c 85 c ta = ? 40 c v dd = 3.0 v, v ss = 0 v 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 0 500 1000 1500 2000 i source ( a ) v oh (v) 25 c 85 c ta = ? 40 c v dd = 1.8 v, v ss = 0 v 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 0 20 40 60 80 100 120 i source ( a ) v oh (v) 25 c 85 c ta =? 40 c v dd = 0.9 v, v ss = 0v 2-3. output voltage (v ol ) vs. i sink 0.0 0.5 1.0 1.5 2.0 2.5 3.0 0 1000 2000 3000 4000 5000 6000 7000 8000 i sink ( a ) v ol (v) 25 c 85 c ta = ? 40 c v dd = 3.0 v, vss = 0 v 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 0 500 1000 1500 2000 2500 3000 i sink ( a) v ol (v) 25 c 85 c ta = ? 40 c v dd = 1.8 v, v ss = 0 v 0.0 0.3 0.6 0.9 0 50 100 150 200 i sink ( a ) v ol (v) 25 c 85 c ta = ? 40 c v dd = 0.9 v, v ss = 0 v

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the information described herein is subject to change without notice. seiko instruments inc. is not responsible for any problems caused by circuits or diagrams described herein whose related industrial properties, patents, or other rights belong to third parties. the application circuit examples explain typical applications of the products, and do not guarantee the success of any specific mass-production design. when the products described herein are regulated products subject to the wassenaar arrangement or other agreements, they may not be exported without authorization from the appropriate governmental authority. use of the information described herein for other purposes and/or reproduction or copying without the express permission of seiko instruments inc. is strictly prohibited. the products described herein cannot be used as part of any device or equipment affecting the human body, such as exercise equipment, medical equipment, security systems, gas equipment, or any apparatus installed in airplanes and other vehicles, without prior written permission of seiko instruments inc. although seiko instruments inc. exerts the greatest possible effort to ensure high quality and reliability, the failure or malfunction of semiconductor products may occur. the user of these products should therefore give thorough consideration to safety design, including redundancy, fire-prevention measures, and malfunction prevention, to prevent any accidents, fires, or community damage that may ensue.

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