4-Channel Analog Switch

The QS4A101 is a high-performance CMOS analog four-channel SPST switch with individual enables. This device provides a set of four high-speed CMOS switches connecting inputs to outputs. The low ON resistance of the QS4A101 allows inputs to be connected to outputs with low insertion loss and high bandwidth. The QS4A101, with 1.4GHz bandwidth, is ideal for high-performance video signal switching, audio signal switching, and telecomm routing applications. Low power dissipation makes this device ideal for battery operated and remote instrumentation applications. The QS4A101 is offered in the QSOP package which has several advantages over conventional packages such as PDIP and SOIC, including: Reduced signal delays due to denser component packaging on circuit boards Reduced system noise due to less pin inductance. The QS4A101 is characterized for operation at -40°C to +85°C.

• Low ON resistance: rDS(ON) = 5O
• Wide bandwidth: 1.4GHz (-3dB point)
• Crosstalk: 122dB at 50KHz, -80dB at 5MHz, -65dB at 30MHz
• Off-isolation: -100dB at 50KHz, -75dB at 5MHz, -45dB at 30MHz
• Single 5V supply
• Bidirectional signal flow
• TTL-compatible control inputs
• Ultra-low quiescent current: 3µA
• Switch turn on time of 6.5ns
• Available in QSOP package