pin diode drivers spectrum microwave o ffers a complete line-up of pin diode switch drivers with output current capability of 10 ma to 50 ma and switching speeds as fast as 6 ns. thin film metalization on ceramic substrates ensures low parasitic capacitance for fast switching, small size, and excellent reliability. ah fmt drivers are designed by our experienced engineering staff; thus, if the drivers listed in the table below do not meet your requirements, we would be happy to discuss a custom circuit to fit your exact needs. features ? m il-std-883 level b screening available ? inverting and non-inverting modes ? positive and negative output currents ? ?55o to +125oc operating temp range ? ?65o to ?150oc storage temp range dd111/m 1 12/24 18/36 12 18 100 150 dd211/m 2 12 18 12 18 100 150 dd211b 2 24 36 12 18 100 150 DD311A 1 8 12 24 36 300 300 ddf11/m 1 8 12 24 36 300 300 ddf2311 2 8 12 24 36 300 300 ddf3311 3 8 12 24 36 300 300 ddf4311 4 8 12 24 36 300 300 ddf5311 5 8 12 24 36 300 300 ddf6311 6 8 12 24 36 300 300 2.5 5.5 25 25 5 45 25 4.5 5.5 5 16 0.8 0.5 2.5 5.5 25 25 5 90 50 4.5 5.5 5 16 1.6 0.5 2.5 5.5 25 25 5 90 50 4.5 5.5 5 16 1.6 0.5 4.0 11.0 6 8 20 15 15 4.5 5.5 5 16 0.8 0.5 4.0 11.0 12 15 10 45 15 4.5 5.5 5 16 0.8 0.5 4.0 11.0 12 15 10 60 30 4.5 5.5 5 16 1.0 0.8 4.0 11.0 12 15 10 75 45 4.5 5.5 5 16 1.5 1.2 4.0 11.0 12 15 10 90 60 4.5 5.5 5 16 1.9 1.2 4.0 11.0 12 15 10 135 75 4.5 5.5 5 16 2.8 1.6 4.0 11.0 12 15 10 150 90 4.5 5.5 5 16 3.3 1.6 m odel n o . o f d r i v e r s output current m inim um open ck t output (v ) m a xim um sw itching tim es (n s ) m inim um pea k (pa ) d.c. (m a ) positiv e m in m a x nega tiv e m in m a x pos neg pos neg 1 2 3 m in m a x to n to ff +5v v ee m in m a x m a x rep. ra te (m hz ) m a xim um interna l current dra in (m a ) opera ting v olta ge lim its (v ) 4 m a x pow er dissipa - tion (w ) 5 +5v v ee 100o c ca se 25o c a m b specifications subject to change without notice. 165cedar hill street,marlborough,ma01752 tel:508.485.6 350 fax: 508.485.5168 www.spectrummicrowave.com notes: 1. output current is measured into a 10 ohm load to ground. 2. load is a 50 pf (39 + 10 scope probe) capacitor in parallel with a grounded cathode hp5082-0c01 pin diode. ton is measured from 50% of input (from a s dd111 dd111m * high speed drivers a universal pin diode driver with excellent noise immunity, very fast switching, 100 ma current spikes and available test points for increasing quiescent output current. 1. w hen using inverting input, connect bias pin 5 to non-inverting input pin 6. 2. w hen using non-inverting input, connect bias pin 5 to inverting input pin 4. 3. for -30 ma output current, connect pin 8 to pin 9. 4. for positive output currents other than 15 ma or 30 ma , an external resistor can be connected between pin 8 and +5v . see graph. 5. the negative output current varies with v ee and is specified at -12v . w hen driving grounded anode diodes, v ee should be kept at -5v where the negative current will be 5 ma . it may be increased by connecting a resistor from tp- (pin 14) to v ee (pin 1). see figure. * m suffix denotes welded metal package instead of standard e poxy sealed ceramic package. dd211 dd211b dd211m * dual high speed drivers a dual dd111 with current programming pins omitted. this driver is often used in spdt applications by driving the inverting input of one channel and the noninverting input of the other channel from the same ttl input signal. 1. w hen using channel 1 inverting input pin 4, connect bias pin 5 to non-inverting input pin 6. 2. w hen using channel 2 inverting input pin 11,. connect bias pin 10 to non-inverting pin 9. 3. w hen using channel 1 non-inverting input pin 6, connect bias pin 5 to inverting input pin 4. 4. w hen using channel 2 non-inverting input pin 9, connect bias pin 10 to inverting input pin 11. 5. the two drivers are identical except for quiescent positive output current, which is nominally 15 ma for dd211 and 30 ma for dd211b. 6 w hen driving anode-grounded diodes, care must be exercised to avoid excessive power dissipation. v ee should be limited to -10 v, at which point the negative output current will be approximately -10 ma . consult factory for design assistance. * m suffix denotes welded metal package instead of standard e poxy-sealed ceramic package. v ee (? 5 to ? 15) output ground inv input input bias non input inv +5 v dc 0.035 pkg bottom .115 m a x .015 .002 0'0 ty p 002 (m ) .005 +.001 .425 m a x 7 8 1 14 dd111 xxxx top v iew 0.050 tp? +30ma tp+ 250 m in v ee (? 5 to ? 15) output ground inv input input bias non input inv +5 v dc v ee (? 5 to ? 15) output ground inv input input bias non input inv +5 v dc +2 cha nnel 1 cha nnel 2 .425 sq m a x dd111 xxxx top v iew .230 m a x .110 .035 .005 .001 top bottom 250 m in ty p 1 14 7 9 .015 .003 1 1 0 035 bottom v iew 0.050 1 14 7 9 .015 m a x 60 0 50 40 30 20 10 600 500 400 300 200 100 0 continued on next page.
dd217 dual high current driver two independent universal medium speed (100 ns) drivers with separate positive and negative quiescent output current programming and separate input logic mode control. this driver is often used in spdt applications by driving both inputs from the same ttl input signal and applying opposite logic inputs to the two mode controls. 1. inputs are inverting when m ode control has a logic high input. 2. inputs are non-invertin g when m ode control has a logic low input. 3. to increase positive output current from the normal +30 ma to +50 ma , connect +50 ma pin to +5 v . 4. to increase negative output current from the normal ?30 ma to ?50 ma , connect ?50 ma pin to v ee. 5. the negative output current does not vary with \/ee, which should not exceed ?5 v when driving grounded anode diodes to avoid high power dissip ation in the drivers. output #1 +50ma #1 +5v input #1 m ode control #1 ground m ode control #2 input #2 +50ma #2 v ee (? 5v to ? 15v ) output #2 1 11 11 22 12 645 sq m a x dd217 xxxx top v iew 500 m in ty p 0.038 0.050 pkg bottom .067 .125 m a x m eta l w elded pa ck a ge 395 m a x 645 m a x ? 50ma ? 50ma 0.015 ty p 010 ty p high current drivers dd111/m 2 24/40 36/60 24/40 36/60 4.0 dd211/m 3 16 24 16 24 4.0 dd211b 3 40 60 40 60 4.0 DD311A 4 16 24 16 24 4.0 ddf11/m 4 40 60 40 60 4.0 ddf2311 6 16 24 16 24 4.0 ddf3311 6 40 60 40 60 4.0 11.0 100 200 1 45 30 4.5 5.5 3 16 1.0 0.8 11.0 100 200 1 90 50 4.5 5.5 3 16 1.5 1.2 11.0 100 200 1 90 50 4.5 5.5 3 16 1.5 1.2 11.0 100 200 1 15 60 4.5 5.5 3 16 1.9 1.2 11.0 100 200 1 45 60 4.5 5.5 3 16 1.9 1.2 11.0 100 200 1 60 90 4.5 5.5 3 16 2.8 1.2 11.0 100 200 1 75 90 4.5 5.5 3 16 2.8 1.2 m odel n o . of dr iv er s output current m inim um open ck t output (v ) m a xim um sw itching tim es (n s ) d.c. (m a ) positiv e m in m a x nega tiv e m in m a x pos neg to n to f f 1 2 3 m in m a x m in m a x m a x rep. ra te (m hz ) m a xim um interna l current dra in (m a ) opera ting v olta ge lim its (v ) 4 m a x pow er dissipa - tion (w ) 5 +5 v v e e +5 v v ee 100o c ca se 25o c a m b notes: 1 output current measured into a 10 ohm load to ground. 2 load is a 50 pf (39 + 10 scope probe) capacitor in parallel wit h a grounded cathode hp5082-0c01 pin diode. ton is measured from 50% of input (from a s ddf2311 ddf3311 ddf4311 tw o, three, and four channel high speed drivers m ultiple independent high-speed drivers with 300 ma peak current spikes. 1. inputs are non-inverting when m ode control has a logic high input. 2. inputs are inverting when m ode control has a logic low input. 3. to increase switching spike currents, add a capacitor of up to 560 pf between the output and tp pins. 4. m ode control and input pins are interchangeable within any one channel. 5. w hen driving anode-grounded diodes, excessive power dissipation must be avoided. v ee should be limited to -8v with -5v recommended. 6. the ddf2311/3311/4311 do not have a true current source output. instead the output is connected to a 380-ohm resistor in parallel with a 560 pf capacitor and the driven end of this rc combination is switched between +4v and v ee so that the negative output current varies directly with v ee. tp output nc non-inverting input ground m ode #1 m ode #2 input #2 nc output #2 tp 1 22 11 12 395 m a x 645 m a x (? 5v to ? 15v ) n/c n/c ddf2311 xxxx top v iew +5v 500 m in ty p m eta l w elded pa ck a ge pkg bottom 0.050 0.038 125 m a x 010 002 500 m in ty p 015 645 sq m a x 1 22 11 12 ground input #1 m ode control #1 input #2 m ode control #2 input #3 m ode control #3 input #4 m ode control #4 +5v ground tp1 output #1 tp2 output #2 n/c tp3 output #3 tp4 output #4 n/c +12v ddf3311/4311 xxxx top v iew m eta l w elded pa ck a ge 150 m a x 067 0.050 m eta l w elded pa ck a ge ground input #1 m ode control #1 input #2 m ode control #2 input #3 m ode control #3 input #4 m ode control #4 input #5 m ode control #5 input #6 m ode control #6 ground output #1 tp1 tp2 output #2 output #3 tp3 +5v tp4 output #4 output #5 tp5 tp6 output #6 -12v .010 .002 pkg bottom .150 max 0.067 typ 0.015 0.003 typ 0.050 typ 0.500 min 0.075 max 0.075 max ddf5311/6311 xxxx 0.770 sq. (max) ddf5311 ddf6311 five and six channel high speed drivers independent high speed drivers with 300 ma peak current spikes. 1. inputs are non-inverting when m ode control has a logic high input. 2. inputs are inverting when m ode control has a logic low input. 3. to increase switching spike currents, add a capacitor of up to 560 pf between the output and tp pins. 4. m ode control and input pins are interchangeable within any one channel- 5. w hen driving anode-grounded diodes, excessive power dissipation must be avoided. v gg should be limited to -8v with -5v recommended. 6. these drivers do not have a true current source output. instead the output is connected to a 380- ohm resistor in parallel with a 560 pf capacitor and the driven end of this rc combination is switched between +4v and v ee so that the negative output current varies directly withv ee . continued on next page.
DD311A DD311A m * ultra high speed spst a n inverting only ultra high speed driver with 300 ma switching current spikes. the DD311A output (pin 2) is connected to a 360 ohm resistor paralleled with a 560 pf capacitor and the driven end (pin 11) of the resistor/capacitor combination is switched between +4 and -10 v. 1. the DD311A should be driven from an otherwise unloaded 54s, 54a s, or 54f type gate to achieve rated switching times. input capacitance is ap- proximately 50 pf. 2. to increase switching peak currents, add a capaci- tor of up to 560 pf between the output and tp pin. * m suffix denotes welded metal package instead of standard e poxy-sealed ceramic package. v ee (? % v to ? 15v ) output ground n/c input m ode control +5v 17 14 8 11 22 425 sq m a x 425 sq m a x dd320/420/620 dd320/420/620 xxxx top v iew pkg bottom 100 (.115 m ) m a x 0.035 0.050 tp 0.015 ty p 250 m in ty p. .0.05 .001 010 ty p. +002 (m * ) v ee (? % v to ? 15v ) output ground inv input +5v .115 m a x 0.035 0.050 pkg bottom 0.015 .003 .005 .001 .010 ty p +002 (m * ) 17 14 8 tp 250 m in ty p DD311A xxxx top v iew ddf311 ddf311m * high speed drivers single channel high speed drivers with 300 ma peak current spikes. 1. inputs are non-inverting when m ode control has a logic high input. 2. inputs are inverting when m ode control has logic low input. 3. to increase switching peak currents, add a capaci- tor of up to 560 pf between the output and tp pin. 4. m ode control and input pins are interchangeable within any one channel. 5. d df311 series drivers do not have a true current source output. instead the output is connected to a 380-ohm resistor in parallel with a 560 pf capacitor and the driven end of this rc combination is switched between +4 and v ee so that the negative output current varies directly with v ee. * m suffix denotes welded metal package instead of standard e poxy-sealed ceramic package. continued on next page.
dd320 dd350 dd420 dd450 dd620 dd650 three, four, and six channel high current drivers m ultiple independent medium speed drivers with separate input logic mode controls. logic inputs are true ttl unit loads. 1. inputs are inverting when m ode control has a logic high input. 2. inputs are non-inverting when m ode control has a logic low input. 3. m ode control and input pins are interchangeable within any one channel. 4. the negative output current does not vary with \/ee which should not exceed -5v when driving grounded anode diodes to avoid high power dissi- pation in the drivers. 5. the last two digits of the part number signify out- put current. other currents are available on special order. application notes pin diode sw itching times pin diodes are used as rf switches because of their low off-capacitance/on-resistance product. however, they store a significant charge during conduction that must be removed before they will turn off. typically, this is specified as storage time (ts), which is made to look better than it might be by rating it with a high ratio of reverse (ir) to forward (if) current. w hen switching these diodes with a non-spiking driver, the typical ts will be multiplied by the specified ratio. for example, the m a 47120 has a ts of 12 ns with if=20 ma and ir= 200 ma . w ith symmetrical currents as delivered by high current drivers, the ts becomes 120 ns. high speed drivers supply a spike of several hundred ma at turn-on and turn-off to shorten the ts of the pin diode. heat sinking the power dissipated in pin diode switches is conducted to the bottom of the package. the thin walls leading to the top of the package represent a high thermal resistance. the total power in the hybrid is the sum of it own current drain multiplied by the voltage of each supply plus the output current of each driver multiplied by the supply voltage less the v f of the pin diode. the total can be substantial especially in the multiple high current drivers. if your calculations show that the hybrid should be heat sunk, you may find it convenient to place it top down on the pc board so that the bottom of the hybrid may be mounted directly to the metal case of your package. other diode drivers +5v output #1 m ode control #1 input #1 output #2 m ode control #2 input #2 output #3 m ode control #3 input #3 ground 1 11 22 12 645 sq m a x dd320/420/620 dd320/420/620 xxxx top v iew v ee (-sv to ? 15v ) output #6 m ode control #6 input #6 output #5 m ode control #5 input #5 output #4 m ode control #4 input #4 ground 500 m in ty p .010 .002 .015 pkg bottom .067 .150 m a x 0.050 m eta l w elded pa ck a ge in addition to these standard circuits, spectrum microwave produces a wide range of custom-designed drivers. these include a dual ecl-input driver (dd212) and a 28-channel 50 ma driver (dd2850). spectrum microwave is also one of the largest custom hybrid manufacturers in the united states. please contact the factory or your local representative for a quote on your driver requirements or your own custom hybrid circuit.
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