MAX4680/MAX4690/MAX4700 dual analog switches feature low on-resistance of 1.25Ω max. On-resistance is matched between switches to 0.3Ω max and is flat (0.3Ω max) over the specified signal range. Each switch can handle Rail-to-Rail® analog signals. Off-leakage current is only 5nA max at +85°C. These analog switches are ideal in low-distortion applications and are the preferred solution over mechanical relays in automatic test equipment or applications where current switching is required. They have low power requirements, require less board space, and are more reliable than mechanical relays. The MAX4680 has two NC (normally closed) switches, and the MAX4690 has two NO (normally open) switch- es. The MAX4700 has one NC and one NO switch and features guaranteed break-before-make switching. These devices operate from a +4.5V to +36V single supply or from ±4.5V to ±20V dual supplies. A separate logic supply pin guarantees TTL/CMOS-logic compatibility while operating across the entire supply voltage range.
The Maxim MAX4680, MAX4690, and MAX4700 are dual SPST CMOS analog switches designed for low‑distortion, rail‑to‑rail signal handling. They offer low on‑resistance, matched channels, and TTL/CMOS‑compatible control inputs.
Typical applications include reed‑relay replacement, data‑acquisition systems, test equipment, and sample‑and‑hold circuits. The devices operate from +4.5 V to +36 V (single supply) or ±4.5 V to ±20 V (dual supply) and provide >2 kV ESD protection.
| On‑Resistance (R_ON) | 1.25 Ω max |
|---|---|
| On‑Resistance Match | 0.3 Ω max |
| Off‑Leakage Current | 5 nA max at +85 °C |
| Supply Voltage Range (single) | +4.5 V to +36 V |
| Supply Voltage Range (dual) | ±4.5 V to ±20 V |
| Break‑Before‑Make (MAX4700) | Guaranteed |
| ESD Protection | >2 kV per method |
The on‑resistance is specified as 1.25 Ω max.
They operate from +4.5 V to +36 V with a single supply or from ±4.5 V to ±20 V with dual supplies.
Yes, the MAX4700 includes guaranteed break‑before‑make switching.