The MAX4729/MAX4730 are low-voltage 3.5Ω, SPDT, CMOS analog switches. They are suitable for applications such as battery-operated equipment, audio and video signal routing, low-voltage data acquisition systems, sample-and-hold circuits, and communications circuits. These devices feature low resistance, low power consumption, low leakage currents, and excellent AC characteristics.
The MAX4729 and MAX4730 are single‑pole/double‑throw (SPDT) CMOS analog switches that operate from a single supply of +1.8 V to +5.5 V. They provide a low on‑resistance of about 0.05 Ω (typical) and a flatness of 0.45 Ω, consume only 1 nA of supply current, and feature low leakage currents across an extended temperature range. Typical applications include battery‑operated equipment, audio/video signal routing, low‑voltage data‑acquisition systems, sample‑and‑hold circuits, and communications circuits.
Key electrical characteristics are presented, such as a 300 MHz -3 dB bandwidth, on‑capacitance of 19.5 pF, off‑capacitance of 6.5 pF, and operation over –40 °C to +85 °C. The devices are offered in 6‑pin SC70 and 6‑pin UDFN packages with three pin‑out configurations. Detailed pin descriptions, absolute maximum ratings, and typical performance curves are included.
| Supply Current | 1 nA |
|---|---|
| Operating Voltage Range | +1.8 V to +5.5 V |
| Bandwidth (-3 dB) | 300 MHz |
| On‑Capacitance | 19.5 pF |
| Temperature Range | -40 °C to +85 °C |
| Package Options | 6‑pin SC70 and 6‑pin UDFN |
They operate from a single supply ranging from +1.8 V to +5.5 V.
The devices typically consume only 1 nA of supply current.
They are offered in 6‑pin SC70 and 6‑pin UDFN packages.