1. General description
The HEF4051B is a single-pole octal-throw analog switch (SP8T) suitable for use in analog or
digital 8:1 multiplexer/demultiplexer applications. The switch features three digital select inputs
(S1, S2 and S3), eight independent inputs/outputs (Yn), a common input/output (Z) and a digital
enable input (E). When E is HIGH, the switches are turned off. Inputs include clamp diodes. This
enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.
2. Features and benefits
• Wide supply voltage range from 3.0 V to 15.0 V
• CMOS low power dissipation
• High noise immunity
• Fully static operation
• 5 V, 10 V, and 15 V parametric ratings
• Standardized symmetrical output characteristics
• Complies with JEDEC standard JESD 13-B
• ESD protection:
• HBM JESD22-A114F exceeds 2000 V
• MM EIA/JESD22-A115-A exceeds 200 V
• Specified from -40 °C to +85 °C and -40 °C to +125 °C
3. Applications
• Analog multiplexing and demultiplexing
• Digital multiplexing and demultiplexing
• Signal gating