HI-509

HI-506, HI-507, HI-508, HI-509 Data Sheet June 1999 File Number 3142.2 Single 16 and 8/Differential 8-Channel and 4-Channel CMOS Analog Multiplexers The HI-506/HI-507 and HI-508/HI-509 monolithic CMOS multiplexers each include an array of sixteen and eight analog switches respectively, a digital decoder circuit for channel selection, voltage reference for logic thresholds, and an enable input for device selection when several multiplexers are present. The Dielectric Isolation (DI) process used in fabrication of these devices eliminates the problem of latchup. DI also offers much lower substrate leakage and parasitic capacitance than conventional junction isolated CMOS (see Application Notes AN520 and AN521). The switching threshold for each digital input is established by an internal +5V reference, providing a guaranteed minimum 2.4V for logic “1” and maximum 0.8V for logic “0”. This allows direct interface without pullup resistors to signals from most logic families: CMOS, TTL, DTL and some PMOS. For protection against transient overvoltage, the digital inputs include a series 200Ω resistor and diode clamp to each supply. The HI-506 is a single 16-Channel, the HI-507 is an 8-Channel differential, the HI-508 is a single 8-Channel and the HI-509 is a 4-Channel differential multiplexer. If input overvoltages are present, the HI-546/HI-547/HI-548/ HI-549 multiplexers are recommended. Features Low ON Resistance . . . . . . . . . . . . . . . . . . . . . . . . . 180Ω Wide Ana...