74HCT4066D,118 Quad SPST Analog Switch | TTL-Compatible CMOS | SOIC-14 SMD

Description

The 74HCT4066D,118 is a high-speed, silicon-gate CMOS Quad Single-Pole Single-Throw (SPST) Analog Switch. It contains four independent bilateral switches, each designed to conduct signals in either direction. These switches are ideal for routing both analog and digital signals, effectively acting as an electronically controlled relay without the mechanical wear or slow switching speeds associated with mechanical components.

The “HCT” designation indicates that the control inputs are TTL-compatible, allowing the switches to be toggled by standard 5V logic levels even while the switch signal path operates at different voltages (within the supply limits). When the enable input is HIGH, the switch is “ON” with low impedance; when LOW, the switch is “OFF” with high impedance.

Note: Product images are shown for reference only. The actual product may vary in appearance, manufacturer marking, or logo depending on stock availability.

Features

• Quad (4) independent bilateral SPST switches
• Low “ON” resistance
• TTL-compatible control inputs (HCT series)
• Wide signal voltage range
• High degree of linearity
• Low crosstalk between switches
• Compact SOIC-14 SMD package

Benefits

• Excellent for routing analog signals (e.g., audio, sensor data)
• Electronic switching replaces bulky, slow mechanical relays
• Direct compatibility with standard 5V microcontrollers
• Low power consumption suitable for portable electronics

Applications

• Analog Signal Multiplexing and Routing
• Signal Gating and Chopper Circuits
• Sample-and-Hold Circuits
• Digital-to-Analog or Analog-to-Digital signal path switching
• Audio/Video signal switching

Package Includes

• 1 x 74HCT4066D,118 Quad SPST Analog Switch IC (SOIC-14 SMD)

Specifications