0 Hz/DC to 18 GHz, DPDT, MEMS Switch

The ADGM1121 is a wideband, double-pole, double-throw (DPDT) switch, fabricated using Analog Devices' microelectromechanical system (MEMS) switch technology. This technology enables a small form factor, wide RF bandwidth, highly linear and low insertion loss switch that is operational down to 0 Hz/DC, making it an ideal solution for a wide range of RF and precision equipment switching needs.

An integrated driver chip generates a high voltage to electrostatically actuate switch that can be controlled by a parallel interface and a serial peripheral interface (SPI). All switches are independently controllable.

The device is packaged in a 24-lead, 5 mm × 4 mm × 1 mm land grid array (LGA) package. To ensure optimum operation of the ADGM1121, see the Critical Operational Requirements section of the data sheet.

The on-resistance (RON) performance of the ADGM1121 is affected by part-to-part variation, channel-to-channel variation, cycle actuations, settling time post turn on, bias voltage, and temperature changes.

APPLICATIONS

* ATE load and probe boards

* DC with high speed loopback testing

* High speed SerDes, PICe Gen4/5, USB4, PAM4

* Relay replacements

* Reconfigurable filters/attenuators

* Military and microwave radios

* Cellular infrastructure: 5G mm wave

* DC to 18 GHz frequency range

* High bit rate capability up to 64 Gbps

* Low insertion loss:

* 0.5 dB (typical) at 8 GHz

* 1.0 dB (typical) at 16 GHz

* High Input IIP3: 73 dBm (typical)

* High RF power handling: 33 dBm (maximum)

* On-resistance: 1.9 Ω (typical)

* High DC current handling: 200 mA

* High switch cycle count: 100 million cycles (minimum)