Product Description
NGA-486
Stanford Microdevices NGA-486 is a high performance InGaP/
GaAs Heterojunction Bipolar Transistor MMIC Amplifier& A
Darlington configuration designed with InGaP process
technology provides broadband performance up to 5 GHz with
excellent thermal perfomance& The heterojunction increases
breakdown voltage and minimizes leakage current between
junctions& Cancellation of emitter junction non-linearities results
in higher suppression of intermodulation products& At 850 Mhz
and 80mA , the NGA-486 typically provides +39&5 dBm output
IP3, 14&8 dB of gain, and +19 dBm of 1dB compressed power
using a single positive voltage supply& Only 2 DC-blocking
capacitors, a bias resistor and an optional RF choke are required
for operation&
DC-5 GHz, Cascadable
InGaP/GaAs HBT MMIC Amplifier
Product Features
High Gain : 14ꢀ1 dB at 1950 MHz
Gain & Return Loss vs. Freq. @TL=+25°C
Cascadable 50 Ohm
16
12
8
0
Patented InGaP Technology
Operates From Single Supply
Low Thermal Resistance Package
GAIN
ORL
-10
-20
-30
-40
IRL
Applications
Cellular, PCS, CDPD
Wireless Data, SONET
Satellite
4
0
0
1
2
3
4
5
6
Frequency (GHz)
Symbol
Parameter
Small Signal Gain
Units
Frequency
Minꢀ
Typꢀ
Maxꢀ
dB
dB
dB
850 MHz
1950 MHz
2400 MHz
13ꢀ3
14ꢀ8
14ꢀ1
13ꢀ5
16ꢀ3
G
dBm
dBm
850 MHz
1950 MHz
19ꢀ0
18ꢀ2
P1dB
Output Power at 1dB Compression
dBm
dBm
850 MHz
1950 MHz
39ꢀ5
34ꢀ0
Output Third Order Intercept Point
(Power out per tone = 0dBm)
OIP3
Bandwidth
IRL
Determined by Return Loss (<-10dB)
Input Return Loss
MHz
dB
dB
dB
V
5000
14ꢀ5
15ꢀ5
4ꢀ0
1950 MHz
1950 MHz
1950 MHz
ORL
Output Return Loss
Noise Figure
NF
Device Voltage
4ꢀ5
4ꢀ8
5ꢀ2
VD
Thermal Resistance
°C/W
145
RTh
VS = 8 V
RBIAS = 39 Ohms
ID = 80 mA Typ&
TL = 25ºC
OIP3 Tone Spacing = 1 MHz, Pout per tone = 0 dBm
ZS = ZL = 50 Ohms
Test Conditions:
The information provided herein is believed to be reliable at press timeꢀ Stanford Microdevices assumes no responsibility for inaccuracies or omissionsꢀ
Stanford Microdevices assumes no responsibility for the use of this information, and all such information shall be entirely at the users own riskꢀ Prices and specifications are
subject to change without noticeꢀ No patent rights or licenses to any of the circuits described herein are implied or granted to any third partyꢀ Stanford Microdevices does not
authorize or warrant any Stanford Microdevices product for use in life-support devices and/or systemsꢀ
Copyright 2000 Stanford Microdevices, Incꢀ All worldwide rights reservedꢀ
726 Palomar Aveꢀ, Sunnyvale, CA 94085
Phone: (800) SMI-MMIC
1
http://wwwꢀstanfordmicroꢀcom
EDS-101104 Revꢀ D