GENERAL DESCRIPTION

The ADGM1304 is a wideband, single-pole, four-throw (SP4T)

switch, fabricated using Analog Devices, Inc., microelectromechanical

system (MEMS) switch technology. This technology

enables a small form factor, wide RF bandwidth, highly linear,

low insertion loss switch that is operational from 0 Hz/dc to

14 GHz, making the ADGM1304 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 a switch that can be controlled by a parallel

interface and a serial peripheral interface (SPI). All four switches

are independently controllable.

The device is packaged in a 24-lead, 5 mm × 4 mm × 0.95 mm,

lead frame chip-scale package (LFCSP).

To ensure optimum operation of the ADGM1304, the Critical

Operational Requirements section must be followed exactly.

The on resistance (RON) performance of the ADGM1304 is

affected by device to device variation, channel to channel

variation, cycle actuations, settling time post turn on, bias voltage,

and temperature changes.

FEATURES

Fully operational down to 0 Hz/dc

On resistance: 2.9 Ω (maximum)

Off leakage: 0.5 nA (maximum)

−3 dB bandwidth

11 GHz (typical) for RF1, RF4

14 GHz (typical) for RF2, RF3

RF performance characteristics

Insertion loss: 0.26 dB (typical) at 2.5 GHz

Isolation: 24 dB (typical) at 2.5 GHz

IIP3: 69 dBm (typical)

RF power: 36 dBm (maximum)

Actuation lifetime: 1 billion cycles (minimum)

Hermetically sealed switch contacts

On switching time: 75 μs (maximum)

Integrated driver removes the need for an external driver

Supply voltage: 3.0 V to 3.6 V

CMOS/LVTTL compatible

Parallel and SPI interface

Independently controllable switches

Switch is in an open state with no power supply present

Requirement to avoid floating nodes on all RFx pins (see the

Floating Node section)

24-lead, 5 mm × 4 mm × 0.95 mm, LFCSP

Operating temperature range: 0°C to 85°C

APPLICATIONS

Relay replacements

Automatic test equipment: RF/high speed digital and mixed

signals

Load and probe boards: RF/high speed digital and mixed

signals

RF test instrumentation

Reconfigurable filters and attenuators

High performance RF switching