[INTERSIL FEATURES Constant ON-resistance for signals to +10V (DG182, 185, 188, 191), to +7.5V (all devices) e +15V power supplies <2nA leakage from signal channel in both ON and OFF states TTL, OTL, RTL direct drive compatibility ton, tott <150ns, break-before-make action Cross-talk and open switch isolation >50dB at 10MHz (752. toad) DG180-191 High-Speed Driver With Junction FET Switches GENERAL DESCRIPTION The DG180 thru DG191 series of analog gates consists of 2 or 4 N-channel junction-type field-effect transistors (J-FET) designed to function as electronic switches. Level-shifting drivers enable low-level inputs (0.8 to 2V) to control the ON- OFF state of each switch. The driver is designed to provide a turn-off speed which is faster than turn-on speed, so that break-before-make action is achieved when switching from one channel to another. In the ON state, each switch conducts current equally well in both directions. In the OFF condition, the switches will block voltages up to 20V peak-to- peak. Switch-OFF input-output feedthrough is >50dB down at 10MHz, because of the low output impedance-of the FET- gate driving circuit. SCHEMATIC DIAGRAM (Typical Channel) ONE AND TWO CHANNEL SPDT AND SPST CIRCUIT CONFIGURATION TWO CHANNEL DPST CIRCUIT CONFIGURATION ve v* Ve ve AO | wwe IN $1 IN , | os t- iD; o ! yv Los, fs Los De BD tIk d ils tt tar {i tr 1} b g!! GND V- DG186/187/188 SHOWN GND vo DG183/184/185 SHOWN ORDERING INFORMATION PART DS(on) DG sat x Y NUMBER TYPE (MAX) DG180 Dual SPST 10 0G181 Dual SPST 30 PACKAGE DGi82 Dual SPST 75 CoyePIn FLAT PACK DG183 Dual DPST 10 P - CERAMIC DIP (Special Order Oniy) DG184 Dual DPST 30 DG185 Dual DPST 75 TEMPERATURE DG186 SPDT 10 A~-MILITARY 55C TO -125C 0G187 SPDT 30 8-INDUSTRIAL 20C TO -85C . , 0G188 SPDT 75 DG189 Dual SPOT 10 ____~ DEVICE TYPE DG190 Dual SPDT 30 . DG191 Dual SPDT 75 -_ DRIVER 3-41 DG180-1 91 ELECTRICAL CHARACTERISTICS (CONT'D) MAXIMUM RESISTANCES (rps(on) MAX) INTERSIL INDUSTRIAL DEVICE MILITARY TEMPERATURE TEMPERATURE UNITS CONDITIONS (Nete 1) numBer | 55C | +25C | +125C [-20C | +25C | +85C V+ =15V, V- = -15V, V_=5V DG180 10 10 20 45 15 25 a Vp = -7.5 DG181 30 30 60 50 50 75 a Vb = -7.5V DG182 78 75 100 100 100 150 a Vp = -10V DG183 10 40 20 15 15 25 a Vp = -7.5V DG184 30 30 60 50 50 75 a Vp = -7.5V DG185 75 75 150 100 400 150 0 Vp = -10V Ig =-10mA 0G196 10 10 20 15 15 25 a Vo = -7.5V DG187 30 30 60 50 50 75 2 Vp = -7.5V Vin = ON" 0G188 75 75 150 100 100 150 a Vp =-10V DG189 40 10 20 15 15 25 a- Vp =-7.5V DG190 30 30 60 50 50 50 a Vp = ~-7.5V DG191 75 75 150 100 100 150 Q Vp = -10V APPLICATION HINT (for design only): Normaily the minimum signal handling capability of the DG180 through DG191 family is 20V peak-to- peak for the 752 switches and 15V peak-to-peak. for the 102 and 302 switches (refer Ip and I, tests above). For other Analog Signals, the following guidelines can be used: proper switch iurn-off requires that V- <Vanatoa(peak) V, where V, = 7.5V for the 108 and 302 switches and V, =5.0V for 752 switches e.g.. 10V minimum (peak) analog signal and a 750 switch (V,=5V), requires that V~ = 10V -5V= ~-15V. SWITCHING TIME TEST CIRCUIT Switch output waveform shown for Vs = constant with logic input waveform as shown. Note that Vs may be + or as per switching time test circuit. Vo is the steady state output with switch on. Feedthrough via gate capacitance may result in spikes at leading and trailing edge of output waveform. LOGIC INPUT FOR OFF TO ON CONDITION (0G180/181/182 SHOWN) ML vt LOGIC 3y ? 5v guy INPUT swiTcH t<t0ns1.5V K. ] SWITCH 5, a OUTPUT ty <10ns 0 INPUT o_o fa Vo ton, Vs = +3 IN I AL Cc. SWITCH y, tors Vs = 3 | Lf) 3001 |" INPUT LOGI pave id (REPEAT TEST FOR swirc o r Vote a b GND 18V ALL CHANNELS) ton ~ { tott Vo =Vs Al + rps TDSoM = ov v~ Vo = Vs Act rsen DUAL SPST DUAL DPST SPDT DUAL SPDT 0G180/181/182 DG183/184/185 DG186/187/188 DG189/190/191 TEST CONDITIONS TEST CONDITIONS TEST CONDITIONS DG183/184/185 0G186/187/188 DG189/190/191 ON = 0.8V [| All Vin ON = 2.0V | All Channels Vin ON = 2.0V Channel 1 Vin ON = 2.0V [Channeis 1 & 2 OFF = 2.0V | All Vin OFF = 0.8V | Alt Channels Vin ON = 0.8V Channel 2 Vin ON = 0.8V [Channels 3 & 4 Vin OFF = 2.0V | Channel 2 Vin OFF = 2.0ViChannels 3 & 4 Vin OFF = 0.8V | Channel 1 Vin OFF = 0.8ViChannels 1 & 2 SWITCH STATES ARE FOR LOGIC 1 INPUT = 2.0V SWITCH STATES ARE FOR LOGIC 1 INPUT=2.0V FOR 3-43 SWITCH STATES ARE LOGIC 1" INPUT = 2.0V SWITCH STATES ARE FOR LOGIC 1 INPUT = 2.0V