The MAX4528 is a low-voltage, CMOS analog IC configured as a phase-reversal switch and optimized for high-speed applications such as chopper amplifiers. It operates from a +2.7V to +12V single supply or from ±2.7V to ±6V dual supplies. On-resistance (110Ω max) is matched between switches to 7Ω (max). Each switch can handle Rail-to-Rail® analog signals. The leakage current is only 0.5nA at +25°C and 20nA at +85°C. All digital inputs have 0.8V to 2.4V logic thresholds, ensuring both TTL- and CMOS-logic compatibility. For higher voltage operation, see the MAX4526/ MAX4527 data sheet.
The MAX4528 is a low‑voltage CMOS analog switch configured for phase‑reversal operation. It supports single‑supply operation from +2.7 V to +12 V or dual‑supply operation from ±2.7 V to ±6 V and is optimized for high‑speed applications such as chopper amplifiers.
Key features include a maximum on‑resistance of 110 Ω (matched to 7 Ω), ultra‑low leakage (0.5 nA at 25 °C), 5 pC charge injection, <100 ns transition time, >2 kV ESD protection, and a typical supply current of 1 µA. The device operates over a temperature range of –40 °C to +85 °C and is available in 8‑pin DIP, SO, and µMAX packages.
| Supply voltage range | +2.7 V to +12 V (single) or ±2.7 V to ±6 V (dual) |
|---|---|
| On‑resistance | 110 Ω max, matched to 7 Ω max |
| Leakage current | 0.5 nA at +25 °C, 20 nA at +85 °C |
| Charge injection | 5 pC max |
| Transition time | <100 ns with ±5 V supplies |
| ESD protection | >2 kV per Method 3015.7 |
| Supply current | 1.0 µA max |
| Operating temperature range | -40 °C to +85 °C |
It operates from +2.7 V to +12 V with a single supply or from ±2.7 V to ±6 V with dual supplies.
The maximum on‑resistance is 110 Ω, and the resistance is matched between switches to 7 Ω max.
The leakage current is only 0.5 nA at +25 °C.
The transition time is less than 100 ns when powered with ±5 V supplies.