DG182BP

Semiconductor DG181 thru DG191 High-Speed Drivers with JFET Switch Description The DG181 thru DG191 series of analog gates consist of 2 or 4 N-channel junction-type field-effect transistors (JFET) designed to function as electronic switches. Level-shifting drivers enable low-level inputs (0.8V 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 isolation 50dB at 10MHz, due to the low output impedance of the FET-gate driving circuit. CT ODU ODUCT R P PR TE OLE UTE 045 April 1999 OBS UBSTIT 49, HI-51 51 S 0 I-5 51, IH5 43 LE H B : I 5 S 8 HI-50 50 POS DG1 0, IH , , 9 3 4 3 0 8 0 4 1 Features DG 90: DG 043, HI DG1 91: HI-5 Constant ON-Resistance for Signals to ±10V (DG182, DG1 DG185, DG188, DG191), to ±7.5V (All Devices) ±15V Power Supplies <2nA Leakage from Signal Channel in Both ON and OFF States TTL, DTL, RTL Direct Drive Compatibility tON, tOFF <150ns, Break-Before-Make Action Cross-Talk and Open Switch Isolation >50dB at 10MHz (75Ω Load) Functional Diagrams (Typical Channel) DG186, DG187, DG188 - ONE AND TWO CHANNEL SPDT AND SPST CIRCUIT CONFIGURATION VL V+ DG183, DG184, DG185 - TWO CHANNEL DPST CIRCUIT CONFI...