8-Channel Analog Switch

The QS4A105 is a high-performance CMOS two-channel 4PST switch with 3-state outputs. The low ON resistance of the QS4A105 allows inputs to be connected to outputs with low insertion loss and high bandwidth. The QS4A105, with 1.3GHz 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 QS4A105 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 QS4A105 is characterized for operation at -40°C to +85°C.

• Low ON resistance: rDS(ON) = 5O
• Wide bandwidth: 1.3GHz (-3dB point)
• Crosstalk: 100dB at 50KHz, -70dB at 5MHz, -50dB at 30MHz
• Off-isolation: -90dB at 50KHz, -60dB at 5MHz, -55dB 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