Description
RF Nitro’s NBB-500 cascadable broadband GaInP/GaAs MMIC
amplifier is a low-cost high-performance solution for your
general-purpose RF and microwave amplification needs.
This 50-ohm gain block is based upon a reliable HBT
(Heterojunction Bipolar Transistor) proprietary MMIC de-
sign, providing unsurpassed performance for small-signal
applications.
The NBB-500 is packaged in a low-cost, surface-mount ce-
ramic package, providing ease of assembly for high-volume
tape-and-reel requirements. The NBB-500 incorporates ex-
ternal dc decoupling capacitors, which limit the low-fre-
quency response. Designed with an external bias resistor,
the NBB-500 provides flexibility and stability to your require-
ment.
The NBB-500 is available in 1,000 or 3,000 piece-per-reel quantities. Connectorized evaluation boards are
available for characterization purposes.
T
GT
Electrical Specifications Vd= +3.9 V, Icc = 35 mA, Zo = 50 , TA = +25 °C
Parameter Test Conditions Units Min. Typ. Max.
Small Signal Power Gain, S21
f
=0.1 to 1.0 GHz
f
=1.0 to 2.0 GHz
f
=2.0 to 4.0 GHz
dB
dB
dB
19.0
16.0
20.5
19.5
18.5
Gain Flatness, GF
f
=0.1 to 3.0 GHz dB + 0.8
Input and Output VSWR
f
=0.1 to 4.0 GHz
f
=4.0 to 6.0 GHz
f
=6.0 to 20.0 GHz
1.45
1.30
1.90
Bandwidth, BW BW3 (3dB) GHz 4.2
Output Power @ 1-dB
Compression, P1dB
f
=2.0 GHz
f
=6.0 GHz
dBm
dBm
12.3
13.7
Noise Figure, NF
f
=3.0 GHz dB 3.2
3rd O rder Intercept, IP3
f
=2.0 GHz dBm +25.4
Reverse Isolation, S12
f
=0.1 to 12.0 GHz dB -17.5
Device Voltage, Vd V 3.6 3.9 4.2
Gain Temperature Coefficient,
dB / oC
-0.0015
Features
Reliable, low-cost HBT design
19.0 dB gain, +12.3 dBm P1dB @ 2 GHz
High P1dB of +13.7 dBm at 6.0 GHz
Single power supply operation
50-ohm input/output matched for high-frequency
utilization
Applications
Narrow & broadband commercial & military
radio designs
Linear & saturated amplifier applications
Gain stage or driver amplifiers utilized in
microwave radio and optical designs such
as PTP, PMP, LMDS, UNII, VSAT, WLAN,
cellular, and DWDM systems
6000030 Rev. B
NBB-500
dc-4GHz
Cascadable Broadband GaAs MMIC Amplifier
10420-F Harris Oaks Boulevard Charlotte, NC 28269 Phone (704) 596-9060 FAX (704)596-0950
http://www.rfnitro.com info@rfnitro.com sales@rfnitro.com
Package 4-Lead Ceramic Micro-X
Out
Rcc
120 ohms
Vcc
In
L choke
C blockC block
Vc
3
4
1
2
Ordering Information 6000030 Rev. B
NBB-500
dc-4 GHz
Cascadable Broadband GaAs MMIC Amplifier
Absolute Maximum Ratings
Exceeding any one or a combination of these limits
may cause permanent damage.
Parameter Absolute Maximum
RF Input Power +20 dBm
Power Dissipation 300 mW
Device Current 70 mA
Channel Temperature 200 °C
Operating Temperature -45 °C to +85 °C
Storage Temperature -65 °C to +150 °C
Part Number Package
NBB-500 Low-Cost 4-Lead Ceramic Pkg.
NBB-500T1 Tape & Reel, 1000 Pieces
NBB-500T3 Tape & Reel, 3000 Pieces
NBB-500-D NBB-500 Chip Form
NBB-500-E NBB-500 Evaluation Board
MTTF vs. Temperature @ Icc = 35 mA
Case Temperature Junction Temperature MTTF (hrs)
85 °C 120°C >1,000,000
Thermal Resistance
Typical Bias Configuration
Application notes related to biasing circuit, device
footprint, and thermal considerations are available
upon request.
Recommended Bias Resistor Values
Supply Voltage, Vcc (V) 5 8 10 12 15 20
Bias Resistor, Rcc () 31 117 174 231 317 460
10420-F Harris Oaks Boulevard Charlotte, NC 28269 Phone (704) 596-9060 FAX (704)596-0950
http://www.rfnitro.com info@rfnitro.com sales@rfnitro.com
T ypical S-Parameter Data Vd= + 3 .9 V, Icc = 35 m A , Zo = 50 , TA = +25 °C
Freq
(GHz)
S11
(dB)
S11
Mag
S11
Ang
S21
(dB)
S21
Mag
S21
Ang
S12
(dB)
S12
Mag
S12
Ang
S22
(dB)
S22
Mag
S22
Ang
0.2 -8.0 0.40 178.9 12.7 4.34 178.8 -18.3 0.12 0.1 -9.0 0.35 179.3
0.5 -8.0 0.40 176.2 13.2 4.55 175.5 -18.3 0.12 0.7 -9.0 0.35 176.5
1.0 -8.0 0.40 171.4 13.2 4.55 170.4 -18.2 0.12 1.4 -9.0 0.35 171.9
2.0 -8.3 0.39 162.0 13.3 4.61 159.4 -18.0 0.13 2.7 -9.0 0.35 162.7
4.0 -9.3 0.34 142.6 13.7 4.86 138.5 -17.2 0.14 3.3 -9.2 0.35 141.8
6.0 -11.8 0.26 120.8 13.9 4.96 108.9 -16.1 0.16 0.1 -9.7 0.33 114.7
8.0 -17.2 0.14 102.1 13.8 4.89 80.4 -15.4 0.17 -6.3 -11.1 0.28 80.1
10.0 -28.9 0.04 150.4 13.3 4.64 50.5 -14.9 0.18 -14.3 -13.1 0.22 37.1
12.0 -18.9 0.11 -155.8 11.9 3.95 23.1 -14.8 0.18 -21.2 -14.3 0.19 -14.8
14.0 -14.7 0.18 -168.1 9.8 3.10 4.3 -14.8 0.18 -26.9 -13.7 0.21 -60.5
Thermal Resistance, at any temperature (in
°C/Watt) can be estimated by the following
equation: θJC(°C/Watt) = 256[TJ(°C) /120]
θJC Thermal Resistance 25C/Watt Typical
0
5
10
15
20
25
0 5 10 15 20
S21 vs Icc (mA)
S21 (dB)
Frequenc
y
(GHz)
25mA
55mA
-40
-35
-30
-25
-20
-15
-10
-5
0
0 5 10 15 20
S11 vs Icc (mA)
S11 (dB)
Frequency (GHz)
25mA
55mA
6000030 Rev. B
NBB-500
dc-4 GHz
Cascadable Broadband GaAs MMIC Amplifier
10420-F Harris Oaks Boulevard Charlotte, NC 28269 Phone (704) 596-9060 FAX (704)596-0950
http://www.rfnitro.com info@rfnitro.com sales@rfnitro.com
Typical Performance Measurements TA = +25° C, Vd = +3.9 V
-25
-20
-15
-10
-5
0
0 5 10 15 20
S12 vs Icc (mA)
S12 (dB)
Fre
q
uenc
y
(
GHz
)
25mA
55mA
-30
-25
-20
-15
-10
-5
0
0 5 10 15 20
S22 vs Icc (mA)
S22 (dB)
Frequency (GHz)
25mA
55mA
3.75
3.8
3.85
3.9
3.95
4
20 25 30 35 40 45 50
Device Voltage (Vd) vs Amplifier Current (Icc)
Vd (V)
Icc (mA)
0
5
10
15
20
123456
P1dB vs Frequency
P1dB (dBm)
Frequency (GHz)
0
5
10
15
20
-12 -10 -8 -6 -4 -2 0
Pout/Gain vs Pin @ 2GHz
Pout (dBm), Gain (dB)
Pin (dBm)
0
5
10
15
20
-14 -12 -10 -8 -6 -4 -2 0 2
Pout/Gain vs Pin @ 6GHz
Pout (dBm), Gain (dB)
Pin (dBm)
Tape & Reel Dimensions
6000030 Rev. B
NBB-500
dc-4 GHz
Cascadable Broadband GaAs MMIC Amplifier
Chip Outline Drawing NBB-500-D
Chip Dimensions: 0.017” X 0.017” X 0.004”
Package Outline Drawing 4-lead ceramic Micro-X
GND
VIA
INPUT
OUTPUT
UNITS: INCHES
[mm]
0.017±0.001
[0.44±0.03]
0.017±0.001
[0.44±0.03]
0.004±0.001
[0.10±0.03]
10420-F Harris Oaks Boulevard Charlotte, NC 28269 Phone (704) 596-9060 FAX (704)596-0950
http://www.rfnitro.com info@rfnitro.com sales@rfnitro.com
0
5
10
15
20
25
30
35
123456
Third Order Intercept vs Frequency
Output IP3 (dBm)
Frequency (GHz)
0.070
(1.78)
3
UNITS:
INCHES
(mm)
2
1
4
0.200 sq
(5.08)
0.040
(1.02)
45°
0.055
(1.40)
0.005
(0.13)
0.020
N5
6000030 Rev. B
NBB-500
dc-4 GHz
Cascadable Broadband GaAs MMIC Amplifier
Application Notes
Die Attach:
The die attach process mechanically attaches the die to the circuit substrate. In addition, it
electrically connects the ground to the trace on which the chip is mounted, and establishes the
thermal path by which heat can leave the chip.
Wire Bonding:
Electrical connections to the chip are made through wire bonds. Either wedge or ball bonding
methods are acceptable practices for wire bonding.
Assembly Procedure:
Epoxy or eutectic die attach are both acceptable attachment methods. Top and bottom
metalization are gold. Conductive silver-filled epoxies are recommended. This procedure in-
volves the use of epoxy to form a joint between the backside gold of the chip and the metalized
area of the substrate. A 150°C cure for 1 hour is necessary. Recommended epoxy is Ablebond
84-1LMI from Ablestik.
Bonding Temperature (Wedge or Ball):
It is recommended that the heater block temperature be set to 160°C +/- 10°C.
ESD Sensitive Device
RF Nitro Communications has furnished the information contained within this document to the best of our ability and accuracy.
However, we reserve the right to make changes to our products, and supporting data, at our sole discretion without notice.
10420-F Harris Oaks Boulevard Charlotte, NC 28269 Phone (704) 596-9060 FAX (704)596-0950
http://www.rfnitro.com info@rfnitro.com sales@rfnitro.com