100mhz cmos/dmos wideband analog switch cwb211 features ultra low leakage. . . . . . . . . . . . . id( off) 200pa typical low capacitance . . . . . . . . . . . . . . . . . . . cd 0.3pf typical low on resistance . . . . . . . . . . . . . . . . . . . . 40 w typical ttl compatible applications glitch-free analog switches rf & video switches sample-and-hold switches communication systems disk drives description the calogic cwb211 offers designers high performance at a low cost. the cwb211 is an excellent choice where capacitance and switching times are crucial. the device out performs industry standard dg211 types offering much faster switching speeds, low r ds (on) and lower capacitance while maintaining high off isolation and good bandwidth. the calogic cwb211 is configured to be a pin for pin replacement of existing analog switches and at the same time upgrading high frequency performance. manufactured on the calogic proprietary low voltage cmos combined with high speed dmos fets, the device is ttl compatible utilizing an on-chip reference to provide constant logic switching over a wide range of supply voltages and temperature without a separate power supply. ordering information part package temperature range cwb211cp plastic 16-pin dip 0 to +85 o c cwb211cy so-16 plastic 0 to +85 o c XCWB211 sorted chips in carriers 0 to +85 o c corporation logic table functional block diagram 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 in1 d1 s1 v- gnd s4 d4 in4 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 in1 d1 s1 v- gnd s4 d4 in4 in2 d2 s2 v+ n/c s3 d3 in3 in2 d2 s2 v+ n/c s3 d3 in3 16 pin dip so-16 top view cwb211cp top view cwb211cy in in in in s d 3 4 1 2 s d s d s d 1 1 2 2 3 3 4 4 four spst switches per package. switches shown in logic '1' input position. logic switch 0on logic 0 0.8v 1 off logic 1 3 2.42v pin configuration note: all devices contain diodes to protect inputs against damage due to high static voltages or electric fields; however, it is advised that precautions be taken not to exceed the maximum recommended input voltag es. all unused inputs must be connected to an appropriate logic level (v dd or gnd). cwb
cwb211 corporation absolute maximum ratings v- negative supply voltage . . . . . . . . . . . . . . . . . . . . -20v v+ positive supply voltage . . . . . . . . . . . . . . . . . . . . . +20v v in control input voltage range . . . . . . . . . . . . . . v+ +0.3v v- -0.3v i l continuous current, any pin except s or d. . . . . . 20ma i s continuous current, s or d . . . . . . . . . . . . . . . . . . 30ma i s peak pulsed current, s or d, 80 m sec, 1%, duty cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90ma t j junction temperature range. . . . . . . . . . -55 to +125 o c t s storage temperature range . . . . . . . . . . -55 to +125 o c p d power dissipation . . . . . . . . . . . . . . . . . . . . . . . 500mw recommended operating conditions v- negative supply voltage . . . . . . . . . . . . . . . -8.0 to -15v v+ positive supply voltage . . . . . . . . . . . . . . . +8.0 to +15v v in control input voltage range . . . . . . . . . . . . . . 0 to +5v t op operating temperature . . . . . . . . . . . . . . . . 0 to +85 o c electrical characteristics (v- = -15v, v+ = +15v unless otherwise noted, t a = +25 o c) symbol parameter min typ max units test conditions static v analog analog signal range -10 +10 v r ds(on) channel on resistance 40 80 w v s = -10v v in = 0 45 80 v s = +2.0v 100 160 v s = +10v v ih high level input voltage 2.4 v v il low level input voltage 0.8 i in logic input leakage current 0.01 0.1 m a v in = +2.4v 0.02 0.1 v in = +15v i d(off) switch off leakage current 0.2 5.0 na v d = +10v, v s = -10v v in = +2.4v i s(off) 0.4 5.0 v s = +10v, v d = -10v i- negative supply quiescent current -0.3 -1.0 ma v in = 0 or +2.4v i+ positive supply quiescent current 0.6 2.0 dynamic t on switch turn-on time 400 600 nsec see switching times test circuit t off switch turn-off time 70 300 o irr off isolation rejection ratio 60 66 db f = 10mhz, r l = 50 w c crr cross coupling rej ection ratio 80 c d drain-node capacitance 0.3 pf v d = v s = 0 f = 1mhz v in = +2.4v c s source-node capacitance 3.0 electrical characteristics (v- = -15v, v+ = +15v unless otherwise noted) limits at temperature extremes symbol parameter maximum @ t a = units test conditions +85 o c static v analog analog signal range 10 v r ds(on) switch on resistance 120 w v s = -10v v in = 0 120 v s = +2.0v 240 v s = +10v i in logic input leakage current 1.0 m a v in = +2.4v 2.0 v in = +15v i d(off) switch off leakage current 100 na v d = +10v, v s = -10v v in = +2.4v i s(off) 100 v s = +10v, v d = -10v i- negative supply quiescent current -1.0 ma v in = 0 or +2.4v i+ positive supply quiescent current 2.0
cwb211 corporation typical performance characteristics (t a = +25 o c unless otherwise specified) test waveforms 3.0v 50% 0 0 0.9 (v ) switch input s rise fall logic input t < 6nsec t < 4nsec v 0 t on t off r + r l ds(on) r l v = 0 switch output () v s switching times test circuit +15v -15v r = 50 l w c = 12pf switch output logic input s v 0 l (v ) switch input +3v switch illustrated in logic '1', switch off, position switching times -vs- supply voltages switching times -vs- ambient temperature 800 700 600 500 400 300 0 200 100 +5 _ +7.5 _ +10 _ +12.5 _ +15 _ v-, v+ - supply voltages (volts) t on -50 -25 0 +25 +50 +75 +100 +125 +150 t - ambient temperature ( c) a o 800 700 600 500 400 300 0 200 100 switching time (nsec) switching time (nsec) t off v = 3v r = 50 c = 12pf s l l w w t off t on r = 50 v = 3v l s l +15v _ v-, v+ = c = 12pf
cwb211 corporation typical performance characteristics (t a = +25 o c unless otherwise specified) switch off isolation rejection ratio -vs- frequency 90 80 70 60 50 40 30 20 12 51020 50 100 f - frequency (mhz) 100 v-, v+ = +15v _ r = 50 l 12 51020 50 100 f - frequency (mhz) v-, v+ = +15v _ 0 1 2 3 4 5 6 7 8 i - insertion loss (db) l v = 0.1v s rms r = 50 l w l w r = 1k oirr - off isolation rejection ratio (db) w insertion loss -vs- frequency v-, v+ - supply voltages (volts) -50 -25 0 +25 +50 +75 +100 +125 t - ambient temperature ( c) a o 2.2 2.1 1.9 1.8 1.7 1.6 1.5 +8 _ +9 _ +10 _ +11 _ +12 _ +13 _ +14 _ +15 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 v = - logic threshold (volts) in logic threshold -vs- supply voltages supply currents -vs- ambient temperature i - supply current (ma) _ i- i+ in v = +2.4v +15v _ v-, v+ = 2.0
cwb211 corporation typical performance characteristics (t a = +25 o c unless otherwise specified) switch on resistance -vs- analog voltage 0 -10 -5.0 0 +5.0 +10 ds(on) r - switch on resistance (ohms) w r = 50 l +15v _ v-, v+ = v - source voltage (volts) s switch on resistance -vs- supply voltage +7.5 _ +10 _ +12.5 _ +15 _ w r = 50 l 0 v = 0.1v f = 1khz s rms 160 140 120 100 80 60 40 20 ds(on) r - switch on resistance (ohms) 80 70 60 50 40 30 20 10 _ +5 v-, v+ - supply voltages (volts) 12 51020 50 100 f - frequency (mhz) f - frequency (mhz) v-, v+ = +15v _ 80 70 60 50 40 30 20 10 0 switch on resistance -vs- frequency total harmonic distortion -vs- frequency total harmonic distortion (%) ds(on) r - switch on resistance v = 0.1v s rms r = 50 l w v-, v+ = +15v _ v-, v+ = +8v _ w l s rms r = 1k , v = 1v w l s rms r = 50 , v = 0.3v r = 50 , v = 1v w l s rms 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 1 4 10 40 0
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