WS4664
Quad SPST analog switch with 0.5Ω on-resistance, 1.8V-5.5V operation, and high bandwidth for signal routing applicati...
Product Overview
Description
The WS4664 is a quad SPST (Single Pole Single Throw) analog switch designed for signal routing in portable and battery-powered applications.
With ultra-low on-resistance of 0.5Ω typical and wide bandwidth of 300MHz, it provides excellent signal integrity for audio and data signals.
The device operates from 1.8V to 5.5V supplies and features break-before-make switching to prevent signal contention.
Product Series
WS
Primary Application
Audio signal routing
Key Features
- Ultra-low on-resistance: 0.5Ω typical
- High bandwidth: 300MHz at -3dB
- Low charge injection: 10pC typical
- Wide supply range: 1.8V to 5.5V
- Break-before-make switching
- Rail-to-rail signal handling
Specifications
| Supply Voltage | 1.8V to 5.5V |
|---|---|
| On-Resistance | 0.5Ω typical |
| Bandwidth | 300MHz |
| Charge Injection | 10pC typical |
| Leakage Current | 1nA max |
| Package | TSSOP-14, QFN-16 |
Applications
Audio signal routing
Sensor signal conditioning
Data acquisition systems
Data acquisition and conversion
Battery-powered equipment
Battery and charging management
Communication systems
Communication and interface
Sensor multiplexing
Sensor signal conditioning
FAE Expert Insights
"The WS4664 is an excellent choice for signal routing applications requiring low on-resistance. The 0.5Ω Ron minimizes signal attenuation and distortion. I've used this switch in audio routing applications where the low charge injection prevents audible pops. The 300MHz bandwidth handles high-speed digital signals without degradation. The wide voltage range allows use in both 3.3V and 5V systems. For general-purpose analog switching, this quad switch offers great value and performance."
Low on-resistance with high bandwidth for versatile switching
— Michael Chen, BeiLuo
Frequently Asked Questions
What is the on-resistance of WS4664?
The WS4664 features ultra-low on-resistance of 0.5Ω typical at 3.3V supply with 5V control voltage. On-resistance varies slightly with supply voltage and signal voltage. At 1.8V supply, typical on-resistance is 0.8Ω. The on-resistance remains flat across the signal range, ensuring consistent performance. Low on-resistance minimizes signal attenuation and distortion, making it ideal for audio and precision applications.
For applications sensitive to signal loss, WS4664's low Ron provides excellent performance. Contact us for on-resistance characteristics across voltage and temperature.