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74HC4051BQ

74HC4051BQ

MPN: 74HC4051BQ,115
Nexperia USA Inc.
1 Circuit IC Switch 8:1 120Ohm 16-DHVQFN (2.5x3.5)
Active45,001 in stock
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Overview

The 74HC4051BQ is a high-speed CMOS 8-channel analog multiplexer/demultiplexer featuring three digital select inputs and an active LOW enable input. It utilizes silicon-gate CMOS technology to achieve high-speed operation with low power consumption, making it suitable for both analog and digital signal routing. This device supports a wide supply range from 2.0V to 10.0V single supply or +/-1.5V to +/-5.0V dual supply configurations.

Why Choose This Part

The part offers a high 180MHz -3dB bandwidth, enabling signal integrity for high-frequency switching applications. Its DHVQFN16 package provides a compact 2.5mm x 3.5mm footprint with an exposed pad for improved thermal performance and mechanical stability. Additionally, built-in break-before-make switching prevents momentary short circuits between input channels during transitions.

Applications

Sensor Signal Multiplexing
Consolidating multiple analog sensor outputs into a single ADC input on a microcontroller to save I/O pins.
Digital Data Routing
Switching between various logic signals or communication buses in digital systems.
Audio Signal Path Switching
Selecting between multiple audio sources in consumer electronics due to its low distortion and wide bandwidth.
Voltage Monitoring
Sampling multiple battery cell voltages or power rails in diagnostic and monitoring circuits.

Key Specifications

Mounting Type Surface Mount
-3db Bandwidth 180MHz
Package / Case 16-VFQFN Exposed Pad
Number of Circuits 1
Operating Temperature -40degC ~ 125degC (TA)
Supplier Device Package 16-DHVQFN (2.5x3.5)
On-State Resistance (Max) 120Ohm
Switch Time (Ton, Toff) (Max) 51ns, 42ns
Voltage - Supply, Dual (V+/-) +/-1.5V ~ 5V
Voltage - Supply, Single (V+) 2V ~ 10V
Current - Leakage (IS(off)) (Max) 400nA
Multiplexer/Demultiplexer Circuit 8:1
Channel Capacitance (CS(off), CD(off)) 3.5pF
Channel-to-Channel Matching (ΔRon) 6Ohm

Getting Started

When integrating this part, ensure that the input signal voltage stays within the VCC to VEE range to avoid latch-up. Connect the E (Enable) pin to GND for normal operation, and use decoupling capacitors close to the VCC and VEE pins to minimize switching noise. For rapid prototyping, it can be used with DHVQFN-to-DIP breakout boards.

Also Consider

CD4051BE TITexas Instruments - Suitable for higher voltage applications requiring up to 20V supply, though with slower switching speeds and higher on-resistance.

Categories

Analog ICs > Analog Switches & Multiplexers