8:1 signal routing with 1.8 kOhm series resistance
The MAX358CWE+T is a single 8:1 CMOS analog multiplexer from Analog Devices, routing one of eight analog inputs to a common output. The 1.8 kOhm max on-state resistance is the dominant term in the series path — for a 10 kOhm source impedance, the voltage divider error is about 15% of the signal, so a downstream buffer with >1 MOhm input impedance is recommended to preserve accuracy.
Dual-supply range and temperature grade
Operates from dual supplies spanning ±4.5 V to ±18 V, giving a total analog signal swing up to 36 V peak-to-peak. This covers the output range of common op-amp rails like ±5 V, ±12 V, and ±15 V without external level shifting.
Switch timing and channel isolation
Typical switch-on and switch-off times are both 300 ns, setting a practical multiplexing rate around 1.6 MHz for a single channel. Channel-to-channel capacitance is 5 pF off-state and 25 pF off-state on the common output — this capacitance forms a low-pass filter with the source impedance, so at 1 MHz a 10 kOhm source sees roughly 6 dB of attenuation from the 25 pF common-node cap alone.
Package footprint and supply rails
Housed in a 16-SOIC wide-body package (7.50 mm body width, 0.295-inch pitch), surface-mount.
ROHS3 compliant — no restricted substances above the threshold. No pin-compatible second-source is listed, so the BOM carries single-source risk for this multiplexer function.