HEF4051BT

The HEF4051BT is an 8-channel analog multiplexer/demultiplexer manufactured by Phihong USA. This MSI device features three address inputs (A0 to A2) and an active LOW enable input (E). It contains eight bidirectional analog switches, each connecting an independent input/output (Y0 to Y7) to a common input/output (Z).

With E LOW, one of the eight switches is selected based on the address inputs. When E is HIGH, all switches are in a high impedance OFF-state. The device supports a supply voltage range of 3 to 15V (VDD to VSS). The analog inputs/outputs can swing between VDD as the positive limit and VEE as the negative limit, with VDD-VEE not exceeding 15V.

Typical ON resistance varies with supply voltage, ranging from 350 Ohm at 5V to 60 Ohm at 15V. OFF-state leakage current is minimal, typically 0 nA for VDD-VEE = 5V or 10V, and up to 1000 nA at 15V. The HEF4051BT is available in a 16-SOIC package suitable for surface mounting.

This component is suitable for applications requiring the selection or routing of analog signals. Its bidirectional switches and addressable selection make it versatile for signal path management in various electronic systems.