Описание
The HI4-547/883 (5962-85131023A) is analog multiplexer with active overvoltage protection and guaranteed rON matching. Analog input levels may greatly exceed either power supply without damaging the device or disturbing the signal path of other channels. Active protection circuitry assures that signal fidelity is maintained even under fault conditions that would destroy other multiplexers. Analog inputs can withstand constant 70VP-P levels with ±15V supplies. Digital inputs will also sustain continuous faults up to 4V greater than either supply. In addition, signal sources are protected from short circuiting should multiplexer supply loss occur. Each input presents 1kO of resistance under this condition. These features make the HI-546/883 and 5962-85131023A ideal for use in systems where the analog inputs originate from external equipment or separately powered circuitry. Both devices are fabricated with 44V dielectrically isolated CMOS technology. The 5962-85131023A is a single 16-channel, and the 5962-85131023A is an 8-channel differential version. If input overvoltage protection is not needed, the 5962-85131023A multiplexer is recommended.
- This circuit is processed in accordance to MIL-STD-883
- No channel interaction during overvoltage
- 44V maximum power supply
- Break-before-make switching
- Analog signal range: ±15V
- Access time (max): 1.0µs
- Power dissipation (max): 45mW
