The HI-546, HI-547, HI-548, and HI-549 are analog multiplexers featuring active overvoltage protection and guaranteed on-resistance matching. These devices allow analog input levels to greatly exceed power supply voltages without damaging the device or disturbing the signal path of other channels, making them ideal for systems with external or separately powered circuitry. They are fabricated with 44V Dielectrically Isolated CMOS technology.
| Analog Overvoltage Protection | 70Vp.p |
|---|---|
| Maximum Power Supply | ±44V |
| Analog Signal Range | ±15V |
| Access Time (Typical) | 500ns |
| Standby Power (Typical) | 75mW |
| Channel Input Capacitance (HI-546) | 10 pF |
| Channel Output Capacitance (HI-547) | 30 pF |
| Off Isolation (Typical) | 50 dB |
The devices provide active overvoltage protection up to 70V peak-to-peak.
The maximum power supply voltage is ±44V.
They are recommended for data acquisition, industrial controls, and telemetry.