December 23, 2024 
Professional magazine and portal dedicated to electronics 
Vishay introduced a new single SPDT analog switch that is the company’s first device in the new ultra compact µDFN6 package. Ideal for analog and digital signal switching in portable consumer and medical devices, the Vishay Siliconix DG3257 achieves low resistance of 5 Ω at 4.2 V, while delivering improved high bandwidth, reduced parasitic capacitance, and a power down protection feature. Measuring just 1 mm by 1 mm by 0.35 mm, the device released today is 29 % smaller and 36 % thinner than switches in the mQFN6 package.
While previous generation devices offer -3 dB bandwidth of 300 MHz, the DG3257 achieves extremely high bandwidth of over 700 MHz. The switch features -32 dB crosstalk at 240 MHz and -33 dB off-isolation. The device is fabricated with a high density sub-micron CMOS process to deliver 50 % lower parasitic capacitance Cd(on) of 9 pF and Cs(off) of 3 pF (more info).
