10-Ω, solid-state switches build multiplexers, with fault detection/protection

10-Ω, solid-state switches build multiplexers, with fault detection/protection

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By eeNews Europe

The ADG5436F contains two independently controlled single-pole/double-throw (SPDT) switches. All switches can be disabled by bringing the enable input low. The switches exhibit break-before-make switching action, making them suitable for multiplexer applications. They conduct equally well in both directions when on, and have an input signal range that extends to the supplies. They can safe handle tens of mA in the switched channel, up to 113 mA depending on drive and temperature conditions, and switch in around 0.5 µsec. The digital inputs are compatible with 3-V logic inputs over the full operating supply range. Input signal levels up to +55 V or –55 V relative to ground are blocked in both the powered and unpowered condition. When no power supplies are present, the switch remains in the off condition, and the switch inputs are high impedance. Under normal operating conditions, if the analogue input signal on any Sxx pin exceeds VDD or VSS by a threshold voltage, VT, the switch turns off. Operating on a single 8-V to 44-V supply or dual ±5-V to ±22-V supplies, the ADG5436F draws 1.2 mA in fault mode and 0.9 mA in normal mode. Available in a 16-lead TSSOP package, it is specified from –40°C to +125°C and priced at $3.86 in 1000s.

Analog Devices;

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