
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
AMPLIFIERS - LOW NOISE - SMT
7
7 - 1
HMC669LP3 / 669LP3E
GaAs PHEMT MMIC LNA w/
FAILSAFE BYPASS MODE, 1700 - 2200 MHz
v04.0709
General Description
Features
Functional Diagram
The HMC669LP3(E) is a versatile, high dynamic range
GaAs MMIC Low Noise Amplier that integrates a
low loss LNA bypass mode on the IC. The amplier
is ideal for receivers and LNA modules operating be-
tween 1.7 and 2.2 GHz and provides 1.4 dB noise
gure, 17 dB of gain and +29 dBm IP3 from a single
supply of +5V @ 86mA. Input and output return losses
are excellent and no external matching components
are required. A single control line is used to switch
between LNA mode and a low loss bypass mode.
Failsafe topology also enables the LNA bidirectional
bypass path when no DC power is available.
Noise Figure: 1.4 dB
Output IP3: +29 dBm
Gain: 17 dB
Failsafe Operation:
Bypass is enabled when LNA is unpowered
Single Supply: +3V or +5V
16 Lead 3x3mm QFN Package: 9 mm2
Electrical Specications, TA = +25° C, Rbias = 15 Ohm
Typical Applications
The HMC669LP3(E) is ideal for:
• Cellular/3G and LTE/WiMAX/4G
• BTS & Infrastructure
• Repeaters and Femtocells
• Tower Mounted Ampliers
• Test & Measurement Equipment
Parameter
LNA Mode Bypass Mode Failsafe Mode UnitsVdd = +3V Vdd = +5V
Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Min. Typ. Max.
Frequency Range 1.7 - 2.2 1.7 - 2.2 1.7 - 2.2 1.7 - 2.2 GHz
Gain 12 15 14 17 -3 -2.1 -3 -2.1 dB
Gain Variation Over Temperature 0.015 0.014 0.0008 0.0008 dB / °C
Noise Figure 1.4 1.65 1.4 1.65 dB
Input Return Loss 10 11 12 12 dB
Output Return Loss 13 13 12 12 dB
Reverse Isolation 28 30 - - dB
Power for 1dB Compression
(P1dB)[1] 11.5 12 21 24 dBm
Third Order Intercept (IP3)[2] 25 29 25 25 dBm
Supply Current (Idd) 49 59 86 105 0.04 - mA
Switching Speed
LNA Mode to Bypass Mode
Bypass Mode to LNA Mode
80 - ns
ns
100 100
[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.