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668LP3E Datasheet(PDF) 1 Page - Hittite Microwave Corporation

Part # 668LP3E
Description  GaAs PHEMT MMIC LNA w/ FAILSAFE BYPASS MODE, 700 - 1200 MHz
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Manufacturer  HITTITE [Hittite Microwave Corporation]
Direct Link  http://www.hittite.com
Logo HITTITE - Hittite Microwave Corporation

668LP3E Datasheet(HTML) 1 Page - Hittite Microwave Corporation

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For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
7
7 - 1
HMC668LP3 / 668LP3E
GaAs PHEMT MMIC LNA w/
FAILSAFE BYPASS MODE, 700 - 1200 MHz
v03.0610
General Description
Features
Functional Diagram
The HmC668lp3(e) is a versatile, high dynamic range
GaAs mmiC low Noise Amplifier that integrates a low
loss lNA bypass mode on the iC. The amplifier is ide-
al for receivers and lNA modules operating between
0.7 and 1.2 GHz and provides 0.9 dB noise figure,
16 dB of gain and +33 dBm ip3 from a single supply
of +5V @ 57mA. input and output return losses are
excellent and no external matching components are
required. A single control line is used to switch be-
tween lNA mode and a low loss bypass mode. The
failsafe topology enables the lNA bypass path, when
no DC power is available. The HmC668lp3(e) offers
improved noise figure versus the previously released
HmC373lp3(e).
Noise figure: 0.9 dB
output ip3: +33 dBm
Gain: 16 dB
failsafe operation:
Bypass is enabled when lNA is unpowered
single supply: +3V or +5V
16 lead 3x3mm QfN package: 9 mm2
Typical Applications
The HmC668lp3(e) is ideal for:
• Cellular/3G and lTe/wimAX/4G
• BTs & infrastructure
• repeaters and femtocells
• Tower mounted Amplifiers
• Test & measurement equipment
Electrical Specifications, T
A = +25° C, Rbias = 0 Ohm
parameter
lNA mode
Bypass mode
failsafe mode
Units
Vdd = +3V
Vdd = +5V
min.
Typ.
max.
min.
Typ.
max.
min.
Typ.
max.
min.
Typ.
max.
frequency range
0.7 - 1.2
0.7 - 1.2
0.7 - 1.2
0.7 - 1.2
GHz
Gain
12
15
13
16
-2.5
-1.5
-2.5
-1.5
dB
Gain Variation over Temperature
0.03
0.016
0.0008
0.0008
dB / °C
Noise figure
0.85
1.1
0.9
1.1
dB
input return loss
12
13
12
12
dB
output return loss
13
14
13
13
dB
reverse isolation
22
23
-
-
dB
power for 1dB Compression
(p1dB)[1]
13
13
22
24
dBm
Third order intercept (ip3)[2]
27
33
26
26
dBm
supply Current (idd)
32
40
57
70
0.05
-
mA
switching speed (90% -10%)
lNA mode to Bypass mode
Bypass mode to lNA mode
200
-
ns
ns
85
85
[1] p1dB for lNA mode is referenced to rfoUT while p1dB for Bypass and failsafe modes are referenced to rfiN.
[2] ip3 for lNA mode is referenced to rfoUT while ip3 for Bypass and failsafe modes are referenced to rfiN.


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