Quad SPST-NO switch in 16-SOIC — what it does and where it fits
The MAX392CSE+ from Analog Devices (formerly Maxim Integrated) is a quad single-pole single-throw normally-open analog switch in a 16-SOIC package. Each of the four independent switches connects a common terminal to a normally-open output when the control pin is driven high. On-resistance is 35 Ohm maximum, and channel-to-channel matching holds to 300 mOhm — tight enough for precision analog multiplexing where the load sees consistent insertion loss across channels. The switch handles single-supply rails from 3 V to 15 V or dual supplies from ±3 V to ±8 V. Switching time is 130 ns on, 75 ns off, which suits audio crosspoint switching, data-acquisition front-ends, and low-frequency signal routing. Charge injection is 2 pC, and off-leakage stays under 100 pA — both low enough to avoid glitching a sample-and-hold or loading a high-impedance source. The commercial temperature range (0°C to 70°C) limits this part to indoor, temperature-controlled equipment — bench instruments, audio gear, telecom line cards, and office peripherals. It is not rated for industrial or automotive environments.
Crosstalk and channel isolation
Crosstalk between channels is rated at -85 dB at 1 MHz.
Lifecycle and compliance — active, no obsolescence concern
The MAX392CSE+ is listed as Active in production and ROHS3 compliant. No end-of-life notice or last-time-buy window is in effect. For BOM planning, this part is available through independent distribution and can be quoted to order against an RFQ.