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ADG918BRMZ-REEL71

Description
0 MHz - 4000 MHz RF/MICROWAVE DIVERSITY SWITCH, 1.25 dB INSERTION LOSS
CategoryTopical application    Wireless rf/communication   
File Size495KB,16 Pages
ManufacturerADI
Websitehttps://www.analog.com
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ADG918BRMZ-REEL71 Overview

0 MHz - 4000 MHz RF/MICROWAVE DIVERSITY SWITCH, 1.25 dB INSERTION LOSS

ADG918BRMZ-REEL71 Parametric

Parameter NameAttribute value
Maximum operating temperature85 Cel
Minimum operating temperature-40 Cel
Maximum input power.063 W
Maximum operating frequency4000 MHz
Minimum operating frequency0.0 MHz
Processing package descriptionRM-8, MO-187AA, MSOP-8
stateACTIVE
structureCOMPONENT
terminal coatingTIN LEAD
Impedance characteristics50 ohm
Maximum insertion loss1.25 dB
Microwave RF TypeDIVERSITY SWITCH
Wideband 4 GHz, 43 dB Isolation at 1 GHz,
CMOS 1.65 V to 2.75 V, 2:1 Mux/SPDT
ADG918/ADG919
FEATURES
Wideband switch: −3 dB @ 4 GHz
Absorptive/reflective switches
High off isolation (43 dB @ 1 GHz)
Low insertion loss (0.8 dB @1 GHz)
Single 1.65 V to 2.75 V power supply
CMOS/LVTTL control logic
8-lead MSOP and tiny 3 mm × 3 mm LFCSP packages
Low power consumption (<1 μA)
FUNCTIONAL BLOCK DIAGRAMS
ADG918
RF1
RFC
50Ω
RF2
CTRL
50Ω
APPLICATIONS
Wireless communications
General-purpose RF switching
Dual-band applications
High speed filter selection
Digital transceiver front end switch
IF switching
Tuner modules
Antenna diversity switching
ADG919
RF1
RFC
RF2
CTRL
03335-001
Figure 1.
GENERAL DESCRIPTION
The ADG918/ADG919 are wideband switches using a CMOS
process to provide high isolation and low insertion loss to
1 GHz. The ADG918 is an absorptive (matched) switch having
50 Ω terminated shunt legs, whereas the ADG919 is a reflective
switch. These devices are designed such that the isolation is
high over the dc to 1 GHz frequency range. They have on-board
CMOS control logic, thus eliminating the need for external
controlling circuitry. The control inputs are both CMOS and
0
–10
V
DD
= 2.5V
T
A
= 25°C
LVTTL compatible. The low power consumption of these
CMOS devices makes them ideally suited to wireless and
general-purpose high frequency switching applications.
PRODUCT HIGHLIGHTS
1.
2.
3.
–43 dB off isolation @ 1 GHz.
0.8 dB insertion loss @ 1 GHz.
Tiny 8-lead MSOP/LFCSP packages.
–0.4
–0.6
–0.8
–1.0
INSERTION LOSS (dB)
–1.2
–1.4
–1.6
–1.8
–2.0
–2.2
–2.4
–2.6
–2.8
–3.0
03335-003
–20
–30
ISOLATION (dB)
–40
–50
S12
–60
–70
–80
–90
S21
V
DD
= 2.5V
T
A
= 25°C
100k
1M
10M
100M
FREQUENCY (Hz)
1G
10G
03335-004
–100
10k
100k
1M
10M
100M
FREQUENCY (Hz)
1G
10G
–3.2
10k
Figure 2. Off Isolation vs. Frequency
Figure 3. Insertion Loss vs. Frequency
Rev. C
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113 ©2003–2008 Analog Devices, Inc. All rights reserved.
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