1 Features

• Wide analog input voltage range: ±5V maximum

• Low ON-resistance:

– 70Ω typical (VCC – VEE = 4.5V)

– 40Ω typical (VCC – VEE = 9V)

• Low crosstalk between switches

• Fast switching and propagation speeds

• Break-before-make switching

• Wide operating temperature range:

–40°C to +125°C

• Operation control voltage: 4.5V to 5.5V

• Switch voltage: 0V to 10V

• Direct LSTTL input logic compatibility

VIL = 0.8V maximum, VIH = 2V minimum

• CMOS input compatibility

II ≤ 1μA at VOL, VOH

2 Applications

• Digital radio

• Signal gating

• Factory automation

• Televisions

• Appliances

• Programmable logic circuits

• Sensors

3 Description

The CD74HCT4051-Q1 device is a digitally controlled

analog switch that uses silicon gate CMOS

technology to achieve operating speeds similar to

LSTTL with the low-power consumption of standard

CMOS integrated circuits.

This analog multiplexer and demultiplexer controls

analog voltages that may vary across the voltage

supply range (for example, VCC to VEE). It is a

bidirectional switch that allows any analog input to be

used as an output and vice versa. The switch has low

ON resistance and low OFF leakages. In addition, this

device has an enable control that, when high, disables

all switches to their OFF state.