hv238 doc.# dsfp-hv238 b070813 features ? hvcmos? technology for high performance ? 220v operating conditions ? output on-resistance typically 22 ? integrated bleed resistors on the outputs ? 5.0 and 12.0v cmos logic compatibility ? very low quiescent power dissipation (-10a) ? -45db min off isolation at 7.5mhz ? low parasitic capacitance ? excellent noise immunity ? flexible operating supply voltages applications ? medical ultrasound imaging ? non-destructive evaluation block diagram 16-channel high voltage analog switch with bleed resistors general description the superte x hv238 is a 220v, 16-channel, high voltage analog switch integrated circuit (ic) with output bleed resistors (r int ). the output switches are confgured as 2 sets of 8 single pole single throw analog switches. it is intended to be used in applications requiring high voltage switching controlled by low voltage control signals such as ultrasound imaging. the 2 sets of 8 analog switches are controlled by 2 input logic controls, d in 1 and d in 2. a logic high on d in 1 will turn on switches 0 to 7 and a logic high on d in 2 will turn on switches 8 to 15. the bleed resistors help to signifcantly reduce voltage built up on capacitive loads such as piezoelectric transducers connected to the outputs. vdd rgnd sw0 sw0 sw7 sw7 sw8 sw8 sw15 sw15 le vpp vnn din1 gnd din2 vdd level tr anslator 2 latch 1 level tr anslator 1 latch 2 supertex inc. supertex inc. www .supertex.com
2 hv238 doc.# dsfp-hv238 b070813 absolute maximum ratings parameter value v dd logic power supply voltage -0.5v to +15v v pp - v nn supply voltage 225v v pp positive high voltage supply -0.5v to v nn +225v v nn negative high voltage supply +0.5v to -225v logic input voltages -0.5v to v dd +0.3v analog signal range v nn to v pp peak analog signal current/channel 3.0a storage temperature -65 o c to +150 o c power dissipation 1.0w operating conditions sym parameter value v dd logic power supply voltage 4.75v to 12.6v v pp positive high voltage supply 50v to 110v v nn negative high voltage supply -10v to v pp -220v v ih high level input voltage v dd -1.0v to v dd v il low-level input voltage 0v to 1.0v v sig analog signal voltage peak-to-peak v nn +10v to v pp -10v t a operating free air temperature 0 o c to 70 o c absolute maximum ratings are those values beyond which damage to the device may occur. functional operation under these conditions is not implied. continuous operation of the device at the absolute rating level may affect device reliability. all voltages are referenced to device ground. notes: 1. power up/down sequence is arbtrary except gnd must be powered -up frst and powered-down last. 2. v sig must be v nn v sig v pp or foating during power up/down transition. 3. rise and fall times of power supplies v dd , v pp , and v nn should not be less than 1.0msec. pin confguration product marking 48-lead lqfp (top view) 48-lead lqfp yy = year sealed ww = week sealed l = lot number c = country of origin* a = assembler id* = ?green? packaging *may be part of top marking top marking bottom marking yyww hv238fg lllllllll cccccccc aaa 1 48 package may or may not include the following marks: si or ordering information part number package option packing HV238FG-G 48-lead lqfp 250/tray HV238FG-G m931 1000/reel typical thermal resistance package ja 48-lead lqfp 52 o c/w -g denotes a lead (pb)-free / rohs compliant package supertex inc. www .supertex.com
3 hv238 doc.# dsfp-hv238 b070813 sym parameter 0 o c +25 o c +70 o c units conditions min max min typ max min max r ons small signal switch on-resistance - 30 - 26 32 - 40 v sig = 0v, i sig = 5.0ma v pp = +50v v nn = -170v - 25 - 22 27 - 35 v sig = 0v, i sig = 200ma - 25 - 22 27 - 30 v sig = 0v, i sig = 5.0ma v pp = +110v v nn = -110v - 20 - 18 22 - 25 v sig = 0v, i sig = 200ma r ons small signal switch on-resistance matching - 20 - 5.0 20 - 20 % v sig = 0v, i sig = 5.0ma, v pp = +110v, v nn = -110v r onl large signal switch on-resistance - - - 15 - - - v sig = 0v, i sig = 1.0a r int output switch shunt resistance - - 20 35 50 - - k output switch to r gnd , i rint = 0.5ma i sol switch off leakage per switch - 5.0 - 1.0 10 - 15 a v sig = v pp -10v, v nn = +10v v os dc offset switch off - 300 - 100 300 - 300 mv no load dc offset switch on - 500 - 100 500 - 500 i ppq quiescent v pp supply current - - - 10 50 - - a all switches off i nnq quiescent v nn supply current - - - -10 -50 - - i ppq quiescent v pp supply current - - - 10 50 - - a all switches on, i sw = 5.0ma i nnq quiescent v nn supply current - - - -10 -50 - - i sw switch output peak current - 3.0 - 3.0 2.0 - 2.0 a v sig duty cycly < 0.1% f sw output switching frequency - - - - 50 - - khz duty cycle = 50% i pp average v pp supply current - 6.5 - - 8.8 - 10 ma v pp = +50v, v nn = -170v all output switches are turning on and off at 50khz i nn average v nn supply current - 8.1 - - -8.8 - -10 i pp average v pp supply current - -8.1 - - 6.3 - 6.9 ma v pp = +110v, v nn = -110v all output switches are turning on and off at 50khz i nn average v nn supply current - 5.0 - - -6.3 - -6.9 i ddq logic supply quiescent current - 10 - - 10 - 10 a all logic inputs are static. i dd logic supply average current - 2.0 - - 2.0 - 2.0 ma d in 1 = d in 2 = 3.0mhz, le is high c in logic input capacitance - 10 - - 10 - 10 pf --- ac electrical characteristics (over recommended operating conditions, v dd = 5.0v, unless otherwise specifed) t wle time width of le 150 - 150 - - 150 - ns --- t wdin time width of d in 150 - 150 - - 150 - ns --- t sd set up time before le rises 150 - 150 - - 150 - ns --- t on turn on time - 5.0 - - 5.0 - 5.0 s v sig = v pp -10v, r load = 10k t off turn off time - 5.0 - - 5.0 - 5.0 s v sig = v pp -10v, r load = 10k dv/dt maximun v sig slew rate - 20 - - 20 - 20 v/ns --- dc electrical characteristics (over operating conditions unless otherwise specifed ) supertex inc. www .supertex.com
4 hv238 doc.# dsfp-hv238 b070813 sym parameter 0 o c +25 o c +70 o c units conditions min max min typ max min max k o off isolation -30 - -30 -33 - -30 - db f = 5.0mhz, 1.0k/15pf load -45 - -45 -50 - -45 - f = 7.5mhz, r load = 50 load k cr switch crosstalk -45 - -45 - - -45 - db f = 5.0mhz, 50 load i id output switch isolation diode current - 300 - - 300 - 300 ma 300ns pulse width, 2.0% duty cycle c sg(off) off capacitance sw to gnd 5.0 17 5.0 12 17 5.0 17 pf v sig = 0v, f = 1.0mhz c sg(on) on capacitance sw to gnd 25 50 25 38 50 25 50 pf v sig = 0v, f = 1.0mhz +v spk output voltage spike - - - 4.0 - - - v r load = 50 -v spk - - - -4.0 - - - ac electrical characteristics (over recommended operating conditions, v dd = 5.0v, unless otherwise specifed) 0v v dd din t sd t wle le sw on off 10% 90% 50% 0v v dd t on t off 50% 50% 50% logic timing diagram truth table d in 2 d in 1 le sw0 to sw7 sw8 to sw15 l l l off off l h l on off h l l off on h h l on on x x h hold previous state supertex inc. www .supertex.com
5 hv238 doc.# dsfp-hv238 b070813 r l 10k v pp -10v and v nn +10v v out r int i sol = v in = 10v p-p @5.0mhz 50 nc 50 v sig i id v out r gnd r int v out v in = 10v p-p @5.0mhz r gnd r int v out r int r gnd r int r int r load v sig v out switch off leakage dc offset on/off t on /t off t est circuit off isolation isolation diode current crosstalk charge injection output vo ltage spike q = 1000pf ? ?v out k o = 20log v out v in k cr = 20log v out v in v pp vpp vdd 5.0v v nn vnn gnd v pp -10v v out v out 1000pf 50 1.0k v nn +v spk -v spk r int r gnd r int r int r int r int r gnd r int r int r gnd r int v out r int r gnd r int v out r int v pp vpp vdd 5.0v v nn vnn gnd v pp vpp vdd 5.0v v nn vnn gnd v pp vpp vdd 5.0v v nn vnn gnd v pp vpp vdd 5.0v v nn vnn gnd v pp vpp vdd 5.0v v nn vnn gnd v pp vpp vdd 5.0v v nn vnn gnd v pp vpp vdd 5.0v v nn vnn gnd test circuits supertex inc. www .supertex.com
6 hv238 doc.# dsfp-hv238 b070813 pin description pin function pin function 1 vnn 25 sw10 2 n/c 26 sw10 3 vpp 27 sw9 4 n/c 28 sw9 5 din1 29 sw8 6 le 30 sw8 7 din2 31 sw7 8 n/c 32 sw7 9 n/c 33 sw6 10 vdd 34 sw6 11 gnd 35 sw5 12 n/c 36 sw5 13 rgnd 37 sw4 14 sw15 38 n/c 15 sw15 39 sw4 16 sw14 40 n/c 17 sw14 41 sw3 18 sw13 42 sw3 19 sw13 43 sw2 20 sw12 44 sw2 21 sw12 45 sw1 22 sw11 46 sw1 23 sw11 47 sw0 24 n/c 48 sw0 supertex inc. www .supertex.com
7 hv238 (the package drawing(s) in this data sheet may not refect the most current specifcations. for the latest package outline information go to http://www.supertex.com/packaging.html .) doc.# dsfp-hv238 b070813 48-lead lqfp package outline (fg) 7.00x7.00mm body, 1.60mm height (max), 0.50mm pitch symbol a a1 a2 b d d1 e e1 e l l1 l2 dimension (mm) min 1.40* 0.05 1.35 0.17 8.80* 6.80* 8.80* 6.80* 0.50 bsc 0.45 1.00 ref 0.25 bsc 0 o nom - - 1.40 0.22 9.00 7.00 9.00 7.00 0.60 3.5 o max 1.60 0.15 1.45 0.27 9.20* 7.20* 9.20* 7.20* 0.75 7 o jedec registration ms-026, variation bbc, issue d, jan. 2001. * this dimension is not specifed in the jedec drawing. drawings are not to scale. supertex doc. #: dspd-48lqfpfg version, d041309. 1 seating plane gauge plane l l1 l2 vi ew b view b seating plane top view side view note 1 (index area d1/4 x e1/4) 48 a2 a a1 b d d1 e e1 e note: 1. a pin 1 identifer must be located in the index area indicated. the pin 1 identifer can be: a molded mark/identifer; an embedded metal marker; or a printed indicator. supertex inc. does not recommend the use of its products in life support applications, and will not knowingly sell them for use in such appl ications unless it receives an adequate ?product liability indemnification insurance agreement.? supertex inc. does not assume responsibility for use of devices described, and limits its liabilit y to the replacement of the devices determined defective due to workmanship. no responsibility is assumed for possible omissions and inaccuracies. circuitry and specifications are subject to change without notice. for the latest product specifications refer to the supertex inc. (website: http//www .supertex.com) ?2013 supertex inc. all rights reserved. unauthorized use or reproduction is prohibited. supertex inc. 1235 bordeaux drive, sunnyvale, ca 94089 t el: 408-222-8888 www .supertex.com
|
