MAX4620/MAX4630/MAX4640 low-voltage, high- ESD-protected, quad, single-pole/single-throw (SPST) analog switches are pin-compatible replacements for the industry-standard 74HC4066 analog switch.
The MAX4620/MAX4630/MAX4640 family provides four single‑pole/single‑throw analog switches in a single IC, compatible with the industry‑standard 74HC4066. Each device is controlled by TTL/CMOS logic levels, operates from a single +2 V to +12 V supply, and offers low on‑resistance (70 Ω max) with minimal leakage (0.5 nA at 25 °C).
These switches are suited for battery‑powered systems, low‑distortion audio, data‑acquisition, and relay‑replacement applications. They feature robust ±15 kV ESD protection on the NO/NC pins, low power consumption (0.5 µW), and high bandwidth (>300 MHz).
| On‑Resistance (max) | 70 Ω at 5 V |
|---|---|
| Off‑Leakage Current | 0.5 nA at +25 °C |
| Supply Voltage Range | +2 V to +12 V (single supply) |
| Power Consumption | 0.5 µW |
| Bandwidth (‑3 dB) | >300 MHz |
MAX4620 has four normally‑open switches, MAX4630 has four normally‑closed switches, and MAX4640 has two normally‑open and two normally‑closed switches.
The off‑leakage current is specified as 0.5 nA at a temperature of +25 °C.
They are guaranteed to operate from a single +2 V up to +12 V supply voltage.