50鈩?/div>
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RF2B
INB
04503-0-012
Figure 1.
Figure 2.
GENERAL DESCRIPTION
The ADG936/ADG936-R are wideband analog switches that
comprise two independently selectable SPDT switches using a
CMOS process to provide high isolation and low insertion loss
to 1 GHz. The ADG936 is an absorptive/matched dual SPDT
with 50 鈩?terminated shunt legs; the ADG936-R is a reflective
dual SPDT. 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, eliminating the need for external
controlling circuitry. The control inputs are both CMOS and
鈥?0
鈥?0
鈥?0
OFF ISOLATION (dB)
LVTTL compatible. The low power consumption of these
CMOS devices makes them ideally suited for wireless
applications and general-purpose high frequency switching.
PRODUCT HIGHLIGHTS
1.
2.
3.
鈥?6 dB off isolation @ 1 GHz.
0.9 dB insertion loss @ 1 GHz.
20-lead TSSOP and 4 mm 脳 4 mm LFCSP package.
鈥?.3
鈥?.4
鈥?.5
鈥?.6
鈥?.7
鈥?.8
鈥?.9
鈥?.0
鈥?.1
鈥?.2
鈥?.3
鈥?.4
鈥?.5
鈥?.6
鈥?.7
鈥?.8
鈥?.9
鈥?.0
鈥?.1
鈥?.2
鈥?.3
鈥?.4
鈥?.5
鈥?.6
鈥?.7
鈥?.8
鈥?.9 T
A
= 25擄C
鈥?.0
10k
100k
V
DD
= 2.5V
T
A
= 25擄C
鈥?0
鈥?0
鈥?0
鈥?0
鈥?0
10k
S12
INSERTION LOSS (dB)
V
DD
= 2.5V
S21
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100k
1M
10M
100M
FREQUENCY (Hz)
1G
10G
1M
10M
100M
FREQUENCY (Hz)
1G
10G
Figure 3. Off Isolation vs. Frequency
Figure 4. Insertion Loss vs. Frequency
Rev. 0
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漏 2004 Analog Devices, Inc. All rights reserved.
04503-0-015