Four SPST channels in a 16-SOIC — what this switch does
The MAX353ESE+ from Maxim Integrated packs four independent SPST (single-pole, single-throw) analog switches into a 16-SOIC package. Each channel is configurable as normally-open or normally-closed, giving you flexibility to route analog signals without extra inverters. The 35 Ohm max on-resistance is moderate — fine for audio, sensor signals, and general-purpose analog multiplexing, but not for high-current power switching. The -85 dB crosstalk at 1 MHz keeps channel-to-channel bleed low, important when you are switching multiple precision analog paths on the same board.
Supply range and signal headroom
This switch accepts a single supply from 10 V to 30 V, or dual supplies from ±4.5 V to ±20 V. The 175 ns turn-on and 145 ns turn-off times are fast enough for audio-rate switching and relay-replacement applications, but not for RF or video.
Charge injection and leakage — precision signal handling
Charge injection is rated at 5 pC, which is low enough to keep glitch energy under control in sample-and-hold circuits or DAC output switching. Off-channel leakage maxes out at 250 pA, and channel capacitance is 9 pF on both source and drain. These numbers mean the switch introduces minimal DC error and capacitive loading in precision analog paths.
Package and temperature grade
Housed in a 16-SOIC package with a 3.90 mm body width, the MAX353ESE+ is a surface-mount part that fits standard SOIC footprints. The industrial temperature range of -40 °C to 85 °C qualifies it for factory-floor automation, outdoor telecom cabinets, and engine-bay-adjacent electronics — not just controlled indoor environments.
Lifecycle and sourcing
The MAX353ESE+ is listed as Active and ROHS3 compliant. No end-of-life notice or last-time-buy window is in effect. For BOM planning, this means no near-term obsolescence risk. The part is available through independent distribution and is quoted to order against an RFQ; current pricing and lead time are confirmed at quote time.