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ADGM3144BCCZ-R2 Datasheet(PDF) 20 Page - Analog Devices

Part # ADGM3144BCCZ-R2
Description  3mm × 3mm SP4T MEMS Switch, 0Hz/DC to 30GHz
PDF  30 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

ADGM3144BCCZ-R2 Datasheet(HTML) 20 Page - Analog Devices

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Data Sheet
ADGM3144
THEORY OF OPERATION
analog.com
Rev. 0 | 20 of 30
SWITCH DESIGN
The ADGM3144 is a wideband SP4T switch fabricated using Ana-
log Devices' MEMS switch technology. This technology enables
high power, low loss, low distortion gigahertz switches to be realiz-
ed for demanding RF applications.
A key strength of the MEMS switch is that it simultaneously brings
together best-in-class high frequency RF performance and 0Hz/DC
precision performance. This combination coupled with superior
reliability and a tiny surface mountable form factor make the MEMS
switch the ideal switching solution for all RF and precision signal
instrumentation needs.
The switches are electrostatically actuated MEMS structures. An
on board charge pump internally generates the bias voltage (80V)
used for actuation of the switch.
PARALLEL DIGITAL INTERFACE
The ADGM3144 can be controlled through a parallel interface.
Standard complementary metal-oxide semiconductor (CMOS) or
low voltage transistor-transistor logic (LVTTL) signals applied
through this interface control the independent actuation or release
of all the switch channels of the ADGM3144.
Setting Pin 19 (PIN/SPI) low enables the parallel control interface.
Pin 20, Pin 21, Pin 22, and Pin 23 (IN1, IN2, IN3, and IN4) control
the switching functions of the ADGM3144. When a Logic 1 is
applied to one of these pins, the corresponding switch turns on.
Conversely, when a Logic 0 is applied, the switch turns off. See
Table 7 for the truth table.
When no supply voltage is applied to Pin 1 (VDD), all switches are in
an indeterminate state.
Table 7. Truth Table in Parallel Digital Interface Mode
IN1
IN2
IN3
IN4
RF1 to RFC
RF2 to RFC
RF3 to RFC
RF4 to RFC
0
0
0
0
Off
Off
Off
Off
0
0
0
1
Off
Off
Off
On
0
0
1
0
Off
Off
On
Off
0
0
1
1
Off
Off
On
On
0
1
0
0
Off
On
Off
Off
0
1
0
1
Off
On
Off
On
0
1
1
0
Off
On
On
Off
0
1
1
1
Off
On
On
On
1
0
0
0
On
Off
Off
Off
1
0
0
1
On
Off
Off
On
1
0
1
0
On
Off
On
Off
1
0
1
1
On
Off
On
On
1
1
0
0
On
On
Off
Off
1
1
0
1
On
On
Off
On
1
1
1
0
On
On
On
Off
1
1
1
1
On
On
On
On



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