The MAX323/MAX324/MAX325 are precision, dual, SPST analog switches. They are single-supply devices designed to operate from +2.7V to +16V. The MAX323 has two normally open (NO) switches, and the MAX324 has two normally closed (NC) switches. The MAX325 has one NO and one NC switch. Low power consump- tion (5µW) makes these parts ideal for battery-powered equipment. These switches offer low leakage currents (100pA max) and fast switching speeds (tON = 150ns max, tOFF = 100ns max). When powered from a 5V supply, the MAX323 series offers 2Ω max matching between channels, 60Ω max on-resistance, and 6Ω max RON flatness. These switches also offer 5pC max charge injection, and a minimum of 2000V ESD per Method 3015.7.
The MAX323, MAX324 and MAX325 are precision, dual, SPST analog switches designed for single‑supply operation from +2.7 V to +16 V. They offer low on‑resistance, fast switching, low leakage and high ESD protection, making them suitable for battery‑powered equipment, sample‑and‑hold circuits, and other low‑power applications.
The document provides detailed electrical characteristics, pin configurations, package options, ordering information and typical performance graphs. It also includes application notes on logic level compatibility, over‑voltage protection and recommended power‑supply sequencing.
| Supply voltage range | +2.7 V to +16 V |
|---|---|
| On‑resistance (typical / max) | 33 Ω typ, 60 Ω max |
| Turn‑on time | ≤ 150 ns |
| Turn‑off time | ≤ 100 ns |
| Off‑state leakage current | ≤ 100 pA |
| Charge injection | ≤ 5 pC |
| ESD rating | ≥ 2000 V (Method 3015.7) |
They operate from +2.7 V to +16 V.
The on‑resistance is 33 Ω typical and up to 60 Ω maximum.
Leakage current is limited to 100 pA.
Turn‑on time is up to 150 ns.