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