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november 2007 rev 2 1/14 14 stg3482 low voltage dual sp4t switch features ultra low power dissipation: ?i cc =0.1 a (max.) at t a =25c low ?on? resistance: ?r on =4.6 (t a = 25c) at v cc =4.3v ?r on = 5.8 (t a = 25 c) at v cc =3.0v wide operating voltage range: ?v cc (opr) = 1.65 to 4.3 v single supply 4.3 v tolerant and 1.8 v compatible threshold on digital control input at v cc = 2.3 to 3.0 v typical bandwidth (-3db) at 300 mhz on all channels latch-up performance exceeds 300 ma per jesd 78, class ii esd performance exceeds jesd22 ? 2000-v human body model (a114-a) description the stg3482 is a high-speed cmos low voltage dual analog sp4t (single pole four throw) switch or 4:1 multiplexer/demultiplexer switch fabricated in silicon gate c 2 mos technology. it is designed to operate from 1.65 to 4.3 v, making this device ideal for portable applications. by controlling the sel1 and sel2, one of the independent channels will be connected to the common channel. an /oe pin is also available in this device to disconnect all the switches. additional key features are fast switching speed, break-before-make delay time and ultra low power consumption. all inputs and outputs are equipped with protection circuits against static discharge, giving them esd immunity and transient excess voltage. qfn16l (2.6 x 1.8 mm) table 1. device summary order code package packaging STG3482QTR qfn16l (2.6 x 1.8 mm) tape and reel www.st.com
contents stg3482 2/14 contents 1 pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.1 pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3.1 recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5 package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 6 revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
stg3482 pin settings 3/14 1 pin settings figure 1. pin connection (top through view) 1.1 pin description note: exposed pad must be soldered to a floating plane. do not connect to power or ground. cs00019 1 2 3 4 5678 12 11 10 9 16 15 14 13 1s4 cc v 1sel 2s1 nc 1s1 gnd 2sel 2s4 2s2 d2 2s3 1s3 d1 1s2 /oe control table 2. pin description pin number symbol name and function 1 1s4 independent channel 2v cc positive supply voltage 3 1sel control 4 2s1 independent channel 5 nc no connect 6 2s2 independent channel 7 d2 common channels 8 2s3 independent channel 9 2s4 independent channel 10 2sel control 11 gnd ground (0v) 12 1s1 independent channel 13 /oe output enable (active low) 14 1s2 independent channel 15 d1 common channel 16 1s3 independent channel
device summary stg3482 4/14 2 device summary figure 2. input equivalent circuit table 3. truth table /oe 1sel 2sel switch connection h x x high-z l l l d1-1s1, d2-2s1 l l h d1-1s2, d2-2s2 l h l d1-1s3, d2-2s3 l h h d1-1s4, d2-2s4 c s 00 3 001 1 s el 2 s el /oe s 4 s3 s 2 s 1 d
stg3482 maximum rating 5/14 3 maximum rating stressing the device above the rating listed in the ?absolute maximum ratings? table may cause permanent damage to the device. these are stress ratings only and operation of the device at these or any other conditions above those indicated in the operating sections of this specification is not imp lied. exposure to absolute ma ximum rating conditions for extended periods may affect device reliability. refer also to the stmicroelectronics sure program and other relevant quality documents. 3.1 recommended operating conditions table 4. absolute maximum ratings symbol parameter value unit v cc supply voltage -0.5 to 5.5 v v i dc input voltage -0.5 to v cc + 0.5 v v ic dc control input voltage -0.5 to 5.5 v v o dc output voltage -0.5 to v cc + 0.5 v i ikc dc input diode current on control pin (v sel <0v) -50 ma i ik dc input diode current (v sel <0v) 50 ma i ok dc output diode current 20 ma i o dc output current 128 ma i op dc output current peak (pulse at 1ms, 10% duty cycle) 300 ma i cc or i gnd dc v cc or ground current 100 ma p d power dissipation at t a = 70oc (1) 1. derate above 70 oc by 18.5 mw/c 1120 mw t stg storage temperature -65 to 150 c t l lead temperature (10 sec) 300 c table 5. recommended operating conditions symbol parameter value unit v cc supply voltage 1.65 to 4.3 v v i input voltage 0 to v cc v v ic control input voltage 0 to 4.3 v v o output voltage 0 to v cc v t op operating temperature -40 to 85 c dt/dv input rise and fa ll time control input v cc = 1.65 to 2.7 v 0 to 20 ns/v v cc = 3.0 to 4.3 v 0 to 10
electrical characteristics stg3482 6/14 4 electrical characteristics table 6. dc specifications symbol parameter test conditions value unit vcc (v) ta = 25 c -40 to 85 c typ max min max v ih high level input voltage 1.65 ? 1.95 0.65 v cc v 2.3 ? 2.5 1.2 2.7 ? 3.0 1.3 3.3 ? 3.6 1.4 4.3 1.6 v il low level input voltage 1.65 ? 1.95 0.25 0.25 v 2.3 ? 2.5 0.25 0.25 2.7 ? 3.0 0.25 0.25 3.3 ? 3.6 0.30 0.30 4.3 0.40 0.40 r peak switch on peak resistance 1.8 v s = 0 v to v cc i s = 8 ma 12.0 16.0 2.7 6.3 8.0 3.0 5.8 7.5 3.7 5.0 6.5 4.3 4.6 6.0 r on switch on resistance 3.0 v s =3v i s =8ma 4.0 5.2 3.0 v s = 0.8v i s = 8 ma 5.0 6.5 r on on resistance match between channels (1) 1.8 v s @ r on max i s = 8ma 0.3 2.7 0.3 3.0 0.3 3.7 0.3 4.3 0.3 r flat on resistance flatness (2) 1.8 v s = 0v to v cc i s = 8ma 5.9 2.7 1.9 3.0 1.6 3.7 1.4 4.3 1.6
stg3482 electrical characteristics 7/14 symbol parameter test conditions value unit vcc (v) ta = 25 c -40 to 85 c typ max min max i off off state leakage current (sn), (d) 4.3 v s = 0.3 or 4 v 20 100 na i in input leakage current 0 to 4.3 v sel = 0 to 4.3 v 0.1 1 a i cc quiescent supply current 1.65 to 4.3 v sel = v cc or gnd 0.1 1.0 a i cclv quiescent supply current low voltage driving 4.3 v 1sel, v 2sel = 1.65 v 37 50 100 a v 1sel, v 2sel = 1.80 v 33 40 50 v 1sel, v 2sel = 2.60 v 12 20 30 v 1sel, v 2sel = 0 v oe = 1.65 v 19 25 50 v 1sel, v 2sel = 0 v oe = 1.80 v 17 20 25 v 1sel, v 2sel = 0 v oe = 2.60 v 6 10 15 1. ron = ron(max) - ron(min) 2. flatness is defined as the difference between the maximum and minimum value of on-resist ance as measured over the specified analog signal ranges. table 6. dc specifications
electrical characteristics stg3482 8/14 table 7. ac electrical characteristics (c l = 35 pf, r l = 50 , t r = t f 5ns) symbol parameter test conditions value unit vcc (v) t a = 25 c -40 to 85 c min typ max min max t plh , t phl propagation delay 1.65 ? 1.95 0.30 ns 2.3 ? 2.7 0.30 3.0 ? 3.3 0.27 3.6 ? 4.3 0.28 t on tu r n - o n time 1.65 ? 1.95 v s = 0.8 v 37 ns 2.3 ? 2.7 v s = 1.5 v 20 30 34 3.0 ? 3.3 15 25 26 3.6 ? 4.3 12 18 20 t off tu r n - o f f time 1.65 ? 1.95 v s = 0.8 23 ns 2.3 ? 2.7 v s = 1.5 v 17 23 17 3.0 ? 3.3 12 18 12 3.6 ? 4.3 10 15 10 t d break before make time delay 1.65 ? 1.95 c l = 35 pf r l = 50 ? v s = 1.5 v 124 ns 2.3 ? 2.7 115 3.0 ? 3.3 1 11 3.6 ? 4.3 19 q charge injection 1.65 c l = 100 pf v gen =0v r gen =0 ? 10 pc 2.3 11 3.0 11 4.3 11
stg3482 electrical characteristics 9/14 table 8. analog switch characteristics (c l = 5pf, r l = 50 , t a = 25c) symbol parameter test conditions value unit vcc (v) t a = 25 c -40 to 85 c min typ max min max oirr off isolation (1) 1.65 ? ? 4.3 v s = 1v rms, f = 1 mhz signal = 0 dbm -75 db v s = 1v rms, f = 10 mhz signal = 0 dbm -58 xtalk crosstalk 1.65 ? ? 4.3 v s = 1v rms, f = 1 mhz signal = 0 dbm -77 db v s = 1v rms, f = 10 mhz signal = 0 dbm -60 thd total harmonic distortion 3.7 f = 20 hz to 20 khz r l = 32 , c l =50 v in = 2.8 v p-p v dc = v cc /2 0.01 0.02 % psrr power supply rejection ratio 3.7 f = 217 hz, r l = 32 , c l = 50 v ripple = 150 mv v dc = v cc /2 -60 db bw -3db bandwidth 3.0 ? ? 4.3 r l = 50 bias = 1 v 300 mhz d g differential gain 3.0 ? ? 4.3 rl = 150 0.64 % d p differential phase 3.0 ? ? 4.3 rl = 150 0.1 deg c in control pin input capacitance v cc = 0 v 1.5 pf c on sn port capacitance when switch is enabled 3.3 f = 1 mhz 6.7 c off sn port capacitance when switch is disabled 3.3 f = 1 mhz 2.8 1. off isolation = 20log10 (v d /v s ), v d = output. v s = input to off switch.
package mechanical data stg3482 10/14 5 package mechanical data in order to meet environmental requirements, st offers these devices in ecopack ? packages. these packages have a lead-free second level interconnect . the category of second level interconnect is marked on the package and on the inner box label, in compliance with jedec standard jesd97. the maximum ratings related to soldering conditions are also marked on the inner box label. ecopack is an st trademark. ecopack specifications are available at: www.st.com . figure 3. qfn16l (2.6 x 1.8 mm) package outline
stg3482 package mechanical data 11/14 1. 1. vfqfpn - standard for thermally enhanced vey fine pitch quad flat package no leads. 2. the leads size is comprehensive of the thickness of the leads finishing material. 3. dimensions do not include mold protusion. 4. package outline exclusive of metal burrs dimensions. 5. shipping media tape and reel units: 3000 table 9. qfn16l (2.6 x 1.8 mm) mechanical data symbol millimeters typ min max a 0.50 0.45 0.55 a1 0.02 0 0.05 a3 0.127 b 0.20 0.15 0.25 d 2.60 2.50 2.70 d2 1.50 1.40 1.60 e 1.80 1.70 1.90 e2 0.70 0.60 0.80 e 0.40 l 0.30 0.25 0.35
package mechanical data stg3482 12/14 figure 4. qfn16l (2.6 x 1.8 mm) tape and reel
stg3482 revision history 13/14 6 revision history table 10. document revision history date revision changes 21-nov-2006 1 initial release. 20-nov-2007 2 updated latch-up performance value in features section n on page 1 , minor text changes, updated figure 1 on page 3 , table 2 on page 3 , table 5 on page 5 , table 6 on page 6 , table 7 on page 8
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