ADG901-EP Datasheet, PDF (1/11 Pages) Analog Devices – Low power consumption

Enhanced Product
Wideband, 38 dB Isolation at 1 GHz, CMOS
1.65 V to 2.75 V, SPST Switch
ADG901-EP
FEATURES
Wideband switch: −3 dB at 4.5 GHz
Absorptive switch
High off isolation: 38 dB at 1 GHz
Low insertion loss: 0.8 dB at 1 GHz
Single 1.65 V to 2.75 V power supply
CMOS/LVTTL control logic
Tiny 3 mm × 3 mm LFCSP package
Low power consumption (<2.5 µA)
ENHANCED PRODUCT FEATURES
Supports defense and aerospace applications (AQEC standard)
Military temperature range: −55°C to +125°C
Controlled manufacturing baseline
1 assembly/test site
1 fabrication site
Enhanced product change notification
Qualification data available on request
APPLICATIONS
Wireless communications
General-purpose radio frequency (RF) switching
Dual-band applications
High speed filter selection
Digital transceiver front-end switch
IF switching
Tuner modules
Antenna diversity switching list
GENERAL DESCRIPTION
The ADG901-EP is a wideband switch that uses a CMOS
process to provide high isolation and low insertion loss to 1 GHz.
The ADG901-EP is an absorptive (matched) switch with 50 Ω
terminated shunt legs. This switch is designed such that the
isolation is high over the dc to 1 GHz frequency range. The
ADG901-EP has on-board CMOS control logic, thus eliminating
the need for external controlling circuitry. The control inputs
are both CMOS and LVTTL compatible. The low power consump-
tion of this CMOS device makes it ideally suited to wireless
applications and general-purpose high frequency switching.
Additional application and technical information can be found
in the ADG901 data sheet.
Rev. A
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FUNCTIONAL BLOCK DIAGRAM
ADG901-EP
RF1
RF2
50Ω
CTRL
50Ω
Figure 1.
PRODUCT HIGHLIGHTS
1. −38 dB Off Isolation at 1 GHz
2. 0.8 dB Insertion Loss at 1 GHz
3. Tiny 8-Lead LFCSP Package
0
T_A = 25°C
–10
–20
–30
–40
–50
–60
V_DD = 2.5V
–70
–80
–90
V_DD = 1.8V
–100
10k
100k
1M
10M
100M
1G
10G
FREQUENCY (Hz)
Figure 2. Off Isolation vs. Frequency
–0.4
–0.6
–0.8
–1.0
–1.2
–1.4
–1.6
–1.8
–2.0
–2.2
–2.4
–2.6
–2.8
V_DD = 2.5V
–3.0 _{TA = 25°C}
–3.0
10k
100k
1M
10M
100M
1G
10G
FREQUENCY (Hz)
Figure 3. Insertion Loss vs. Frequency
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