Product Overview
The MC74HC4066ADR2G from onsemi is a quad bilateral analog switch with 70 ohm ON resistance at 6V supply. Each of the four SPST switches is independently controlled, enabling analog signal routing for audio, video, and instrumentation applications.
Key Specifications
| Function | Quad bilateral analog switch |
| ON Resistance | 70 ohm at 6V, 90 ohm at 4.5V |
| Switching Time | 35 ns max |
| Supply Voltage | 2.0V to 10.0V |
| Analog Signal Range | 0 to VCC |
| Package | SOIC-14 (3.9×8.65mm) |
Working Principle
Four independent SPST (single-pole single-throw) bilateral switches pass analog signals bidirectionally between I/O pins when the control input is HIGH. CMOS transmission gate structure (parallel N and P MOSFETs) ensures low and relatively flat ON resistance across the signal range. Each switch is independently controlled.
Applications
- Analog signal routing
- Audio source selection
- Sample-and-hold
- Modulation / demodulation