MAX333A is a precision, quad, single-pole double- throw (SPDT) analog switch that offers low on resistance, guaranteed to match within 2Ω between channels and to remain flat over the analog signal range (∆3Ω max).
The MAX333A is a precision quad single‑pole double‑throw (SPDT) CMOS analog switch from Maxim. It operates with bipolar supplies from +4.5 V to +20 V or with a single‑supply from +10 V to +30 V, offering low on‑resistance, low charge injection, and high ESD protection, making it suitable for portable instruments, test equipment, and communication systems.
The datasheet includes detailed electrical characteristics such as turn‑on/off times, leakage currents, and on‑resistance values, as well as pin configurations, ordering information, and typical application circuits. It also provides test circuit diagrams and over‑voltage protection guidelines for designers.
| Off‑Channel Leakage (at +85 °C) | < 6 nA |
|---|---|
| ESD Rating | > 2000 V |
| Supply Voltage (single‑supply) | +10 V to +30 V |
| Supply Voltage (bipolar) | +4.5 V to +20 V |
| Turn‑Off Time | 145 ns |
| Turn‑On Time | 175 ns |
| Charge Injection | < 10 pC |
The MAX333A is rated for electrostatic discharge protection greater than 2000 V.