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