Dual SPDT switch for precision signal routing
The MAX4526EUA+: Each switch handles signals up to 175 Ohm on-resistance max, with channel-to-channel matching held to 500 mOhm — tight enough that gain errors across paths stay negligible in a precision analog front-end. Charge injection is specified at 1 pC typical, which matters when the switch connects to a sample-and-hold capacitor or an integrator — that 1 pC of injected charge translates to a voltage step across the hold cap, and knowing the number lets you budget the settling time or pick a larger cap to absorb it.
Supply rail flexibility for single or dual-voltage systems
That covers common industrial rails: a single 12 V or 24 V supply, or a ±15 V analog rail. If your design already has a bipolar supply for op-amps, this switch drops right onto the same rails without an extra regulator. Leakage current off-state is max 500 pA, and channel capacitance is 13 pF — both low enough that the switch doesn't load down a high-impedance sensor output or introduce a noticeable RC time constant in the signal path at audio frequencies.
The 0.65 mm lead pitch is forgiving for a hobbyist or a rework bench.
