Dual SPST-NC analog switch for precision signal routing
The MAX4542EUA+ from Maxim Integrated is a dual single-pole single-throw normally-closed (SPST-NC) analog switch in an 8-uMAX/uSOP package. Each switch handles rail-to-rail analog signals with a maximum on-resistance of 60 ohms, making it suitable for audio routing, data acquisition front-ends, and sample-and-hold circuits. The part operates from a single 2.7 V to 12 V supply and is rated over the -40°C to 85°C industrial temperature range.
Key ratings and what they mean for the BOM
The 60-ohm max on-resistance sets the insertion loss for the signal path. The -90 dB crosstalk at 1 MHz keeps the two channels isolated.
Package and mounting
The 8-uMAX/uSOP package is a 3.00 mm wide MSOP footprint, surface-mount only. The tube delivery is typical for small-quantity prototyping; for production volumes the part is also available in tape-and-reel. The 0.118-inch body width fits standard MSOP-8 land patterns, and the low profile suits dense PCB layouts.
Lifecycle and compliance
The MAX4542EUA+ carries an Active lifecycle status and is ROHS3 compliant. No end-of-life notice or last-time-buy window is in effect. The part is sourced through independent distribution and quoted to order against an RFQ.