MAX4575/MAX4576/MAX4577 are low-voltage, high electrostatic discharge (ESD)-protected, dual single-pole/single-throw (SPST) analog switches. The normally closed (NO) and normally open (NC) pins are protected against ±15kV ESD without latchup or damage. Each switch can handle Rail-to-Rail® analog signals. Off-leakage current is 0.5nA at +25°C. These analog switches are suitable for low-distortion audio applications and are the preferred solution over mechanical relays in automated test equipment or applications where current switching is required. They have low power requirements (0.5µW), require less board space, and are more reliable than mechanical relays. Each device is controlled by TTL/CMOS input voltage levels and is bilateral. These switches feature guaranteed operation from a single supply of +2V to +12V, making them ideal for use in battery-powered applications. On-resistance is 70Ω (max), matched between switches to 0.5Ω (typ) and flat (2Ω typ) over the specified signal range. The MAX4575 has two NO switches, the MAX4576 has two NC switches, and the MAX4577 has one NO and one NC switch. These devices are available in 8-pin µMAX and SO packages.
The MAX4575, MAX4576, and MAX4577 are dual single‑pole/single‑throw analog switches designed for low‑distortion audio, automated test equipment, and battery‑powered applications. Each device features normally‑open (NO) or normally‑closed (NC) pins protected against ±15 kV ESD, rail‑to‑rail signal handling, and operation from a single supply of +2 V to +12 V.
Key specifications include an off‑leakage current of 0.5 nA at +25 °C, on‑resistance of 70 Ω (max) at +5 V, and low power consumption (≈10 µA). The switches are TTL/CMOS‑compatible, bidirectional, and available in 8‑pin µMAX and SO packages.
| Off‑leakage current (NO/NC) | 0.5 nA at +25 °C |
|---|---|
| On‑resistance (max) at +5 V | 70 Ω |
| On‑resistance matching (typ) | 0.5 Ω |
| On‑resistance flatness (typ) | 2 Ω |
| Supply voltage range | +2 V to +12 V |
They operate from a single supply of +2 V to +12 V, with an absolute maximum rating of +13 V.
The off‑leakage current is specified as 0.5 nA at +25 °C.