The MAX4501/MAX4502 are single-pole/single-throw (SPST), low-voltage, single-supply, CMOS analog switches. The MAX4501 is normally open (NO). The MAX4502 is normally closed (NC). These CMOS switches can operate continuously with a single supply between +2V and +12V. Each switch can handle Rail-to-Rail® analog signals. The off-leakage current is only 1nA at +25°C or 10nA at +85°C. The digital input has 0.8V and 2.4V logic thresholds, ensuring TTL/CMOS-logic compatibility when using a single +5V supply.
The MAX4501 (normally open) and MAX4502 (normally closed) are single‑pole/single‑throw CMOS analog switches that operate from a single supply of +2 V to +12 V. They handle rail‑to‑rail analog signals and are suited for battery‑operated equipment, audio/video routing, data‑acquisition, communications circuits, PCMCIA cards, and cellular phones. The devices feature low off‑leakage (1 nA at 25 °C) and low on‑leakage currents, making them ideal for low‑power applications.
Electrical specifications include a guaranteed on‑resistance of 250 Ω at +5 V, logic thresholds of 0.8 V (low) and 2.4 V (high), fast switching (tON = 75 ns, tOFF = 50 ns), and charge injection of 10 pC. They are offered in multiple packages such as SOT23‑5, SC70‑5, SO, Plastic DIP, and CERDIP, with detailed pin configurations and ordering information provided.
| Supply Voltage Range | +2 V to +12 V |
|---|---|
| Off‑Leakage Current (25 °C) | 1 nA |
| On‑Resistance (5 V) | 250 Ω |
| Switching Speed tON | 75 ns |
| Switching Speed tOFF | 50 ns |
| Logic Input Thresholds | 0.8 V low, 2.4 V high |
| Charge Injection | 10 pC |
| Available Packages | SOT23‑5, SC70‑5, SO, Plastic DIP, CERDIP |
They operate from a single supply of +2 V to +12 V.
The off‑leakage current is 1 nA at +25 °C.
The low threshold is 0.8 V and the high threshold is 2.4 V.
The on‑resistance is guaranteed to be 250 Ω at +5 V.