Описание
The HI-508 monolithic CMOS multiplexer include an array of eight analog switches, 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. 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 200? resistor and diode clamp to each supply. The HI-508 is a single 8-channel differential multiplexer.
- Pb-Free Available (RoHS Compliant)
- Low ON Resistance 180?
- Wide Analog Signal Range ±15V
- TTL/CMOS Compatible
- Access Time 250ns
- Maximum Power Supply 44V
- Break-Before-Make Switching
- No Latch-Up
