The MAX301, MAX303, and MAX305 are precision, dual, high‑speed analog switches offered in SPST, DPST, and SPDT configurations. They provide low on‑resistance (typical < 22 Ω, max 35 Ω), guaranteed matched resistance between channels (< 2 Ω), low leakage (< 6 nA at +85 °C), and fast turn‑on (< 150 ns) and turn‑off (< 100 ns) times. The devices operate from a single positive supply (+10 V to +30 V) or bipolar supplies (±4.5 V to ±20 V) and support rail‑to‑rail analog signal handling up to a 44 V breakdown voltage.
The datasheet includes electrical characteristics, pin configurations for DIP, SO, CERDIP, and LCC packages, and application notes such as over‑voltage protection using series diodes. Ordering information, temperature ranges, and typical performance graphs (on‑resistance vs. voltage, charge injection, off‑isolation, crosstalk) are also provided.
| Typical On‑Resistance | < 22 Ω (35 Ω Max) |
|---|---|
| On‑Resistance Match Between Channels | < 2 Ω |
| Off‑Channel Leakage (at +85°C) | < 6 nA |
| Turn‑On Time | < 150 ns |
| Turn‑Off Time | < 100 ns |
| Maximum Breakdown Voltage | 44 V |
| Power Consumption | 35 µW |
The typical on‑resistance is less than 22 Ω (with a maximum of 35 Ω).
They can run from a single positive supply of +10 V to +30 V or from bipolar supplies of ±4.5 V to ±20 V.
Turn‑on time is under 150 ns and turn‑off time is under 100 ns.
The devices have a maximum breakdown voltage of 44 V.