Sirenza Microdevices SNA-686 is a GaAs HBT MMIC Amplifier
housed in a low-cost, surface-mountable plastic package.
The heterojunction increases breakdown voltage and
minimizes leakage current between junctions. Cancellation
of emitter junction non-linearities results in higher suppression
of intermodulation products.
The use of an external resistor allows for bias flexibility and
stability. These unconditionally stable amplifiers are designed
for use as general purpose 50 ohm gain blocks.
Also available in chip form (SNA-600), its small size (0.38mm
x 0.38mm) and gold metallization make it an ideal choice for
use in hybrid circuits.
Gain & Return Loss vs. Frequency
DC-6 GHz, Cascadable
GaAs HBT MMIC Amplifier
Not Recommended for New Designs
See Application Note AN-019 for Alternates
Patented GaAs HBT Technology
Cascadable 50 Ohm Gain Block
34 dBm Output IP3 @ 850 MHz
Operates From Single Supply
Low Cost Surface Mount Plastic Package
Input Return Loss
Output Return Loss
Cellular, PCS, CDPD, Wireless Data, SONET
Output Power at 1dB Compression
IP3 Third Order Intercept Point
S21 Small Signal Gain
(Determined by S11, S22 Values)
S12 Reverse Isolation
NF Noise Figure
VD Device Operating Voltage
V 5.0 5.3 5.6
ID Device Operating Current
I 58 65 72
Thermal Resistance (junction - lead)
VS = 8 V
RBIAS = 43 Ohms
ID = 65 mA Typ.
TL = 25ºC
OIP3 Tone Spacing = 1 MHz, Pout per tone = 0 dBm
ZS = ZL = 50 Ohms
The information provided herein is believed to be reliable at press time. Sirenza Microdevices assumes no responsibility for inaccuracies or omissions. Sirenza Microdevices
assumes no responsibility for the use of this information, and all such information shall be entirely at the users own risk. Prices and specifications are subject to change without
notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. Sirenza Microdevices does not authorize or warrant any
Sirenza Microdevices product for use in life-support devices and/or systems. Copyright 2003 Sirenza Microdevices, Inc.. All worldwide rights reserved.
522 Almanor Ave., Sunnyvale, CA 94085
Phone: (800) SMI-MMIC
1 EDS-101398 Rev C