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ADI intros solid-state switch geared for multiplexer apps

02 Apr 2015  | Graham Prophet

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Analog Devices Inc. (ADI) has developed a solid-state switch that integrates a couple of independently-controlled single-pole/double-throw (SPDT) switches. According to the company, the ADG5436F is aimed at a number of signal-routing applications including relay replacement, in areas such as analogue I/O, process control, data acquisition, instrumentation, avionics, ATE and communications systems.

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, stated the company. They conduct equally well in both directions when on, and have an input signal range that extends to the supplies. They can safely handle tens of mA in the switched channel, up to 113mA depending on drive and temperature conditions, and switch in around 0.5μs.


The digital inputs are compatible with 3V logic inputs over the full operating supply range. Input signal levels up to 55V or -55V 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 8V to 44V supply or dual ±5V to ±22V supplies, the ADG5436F draws 1.2mA in fault mode and 0.9mA 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 1,000 units.

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