What this dual SPDT switch brings to the board
The Maxim Integrated MAX4526CUA+ is a dual single-pole double-throw (SPDT) analog switch in an 8-uMAX/uSOP package. Each of the two switches routes a common input to one of two outputs (2:1 multiplexer/demultiplexer configuration). The part operates from a single supply of 4.5 V to 36 V or dual supplies of ±4.5 V to ±18 V, covering a wide range of analog signal rails. On-resistance is 175 ohms max, with channel-to-channel matching of 500 milliohms, and charge injection is a low 1 pC — important for minimizing glitch energy when switching into a sample-and-hold or audio path. Off-leakage is specified at 500 pA max, and off-channel capacitance is 13 pF. The operating temperature range is 0°C to 70°C, suitable for commercial and industrial indoor equipment.
175 ohm on-resistance and what it means for signal integrity
The 175 ohm max on-resistance causes voltage drop in series with the signal path.
Package and rework considerations
The MAX4526CUA+ comes in an 8-uMAX/uSOP (3.00 mm width, 0.118" pitch) surface-mount package. It ships in Tube.
Lifecycle and sourcing reality
The part is ROHS3 compliant.