1
Product Description
EDS-101697 Rev A
522 Almanor Ave., Sunnyvale, CA 94085 Phone: (800) SMI-MMIC http://www.sirenza.com
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 2001 Sirenza Microdevices, Inc..
All worldwide rights reserved.
Sirenza Microdevices SNA-186 is a GaAs monolithic broad-
band amplifier (MMIC) housed in a low-cost surface-mount-
able plastic package. At 1950 MHz, this amplifier provides 12dB
of gain and +13dBm of P1dB power when biased at 50mA.
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-100), its small size (0.33mm
x 0.33mm) and gold metallization makes it an ideal choice for
use in hybrid circuits.
SNA-186
DC-8 GHz, Cascadable
GaAs HBT MMIC Amplifier
Product Features
Patented, Reliable GaAs HBT Technology
Cascadable 50 Ohm Gain Block
12dB Gain, +13dBm P1dB
1.5:1 Input and Output VSWR
Operates From a Single DC Supply
Low Cost Surface Mount Plastic Package
Applications
PA Driver Amplifier
Cellular, PCS, GSM, UMTS
IF Amplifier
Wireless Data, Satellite
10
11
12
13
14
15
0.1
0.5
1
1.5
2
4
6
8
Output Power vs. Frequency
dBm
GHz
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Test Conditions:
V
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= 8 V
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= 50 mA Typ.
OIP
3
Tone Spacing = 1 MHz, Pout per tone = 0 dBm
R
BIAS
= 82 Ohms
T
L
= 25ēC
Z
S
= Z
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= 50 Ohms
2
EDS-101697 Rev A
Preliminary
522 Almanor Ave., Sunnyvale, CA 94085 Phone: (800) SMI-MMIC http://www.sirenza.com
SNA-186 DC-10 GHz Cascadable MMIC Amplifier
|S11| vs. Frequency
|S21| vs. Frequency
|S12| vs. Frequency
|S22| vs. Frequency
TOIP vs. Frequency
-25
-20
-15
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-5
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1
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4
6
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24
25
26
27
28
0.1
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1
1.5
2
4
6
8
dB
GHz
GHz
dB
dBm
dB
GHz
GHz
dB
GHz
Typical Performance at 25° C (Vds = 3.8V, Ids = 50mA)
Noise Figure vs. Frequency
5
6
7
8
0.1
0.5
1
1.5
2
4
6
8
dB
GHz
Absolute Maximum Ratings
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3
EDS-101697 Rev A
Preliminary
522 Almanor Ave., Sunnyvale, CA 94085 Phone: (800) SMI-MMIC http://www.sirenza.com
SNA-186 DC-10 GHz Cascadable MMIC Amplifier
Typical Application Circuit
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RF out
1 uF
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R
BIAS
L
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1
2
3
4
1000
pF
SNA-186
Application Circuit Element Values
Part Number Ordering Information
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The part will be marked with an S1 designator on the
top surface of the package.
Part Identification Marking
Caution: ESD sensitive
Appropriate precautions in handling, packaging
and testing devices must be observed.
#
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S1
Mounting Instructions
1. Use a large ground pad area under device pins 2
and 4 with many plated through-holes as shown.
2. We recommend 1 or 2 ounce copper. Measurements
for this data sheet were made on a 31 mil thick FR-4
board with 1 ounce copper on both sides.
1 uF
R
BIAS
S1
1000 pF
C
B
C
B
C
D
L
C
V
S
4
EDS-101697 Rev A
Preliminary
522 Almanor Ave., Sunnyvale, CA 94085 Phone: (800) SMI-MMIC http://www.sirenza.com
SNA-186 DC-10 GHz Cascadable MMIC Amplifier
PCB Pad Layout
Dimensions in inches [millimeters]
Nominal Package Dimensions
Dimensions in inches [millimeters]
Refer to drawing posted at www.sirenza.com for tolerances.
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