Low Current, High Performance NPN
Silicon Bipolar Transistors
Data Sheet
Description
Avago’s AT-30511 and AT-30533 are high performance
NPN bipolar transistors that have been optimized for
maximum fT at low voltage operation, making them ideal
for use in battery powered applications in wireless markets. The AT-30533 uses the 3 lead SOT-23, while the AT30511 places the same die in the higher performance 4
lead SOT-143. Both packages are industry standard, and
compatible with high volume surface mount assembly
techniques.
The 3.2 micron emitter-to-emitter pitch and reduced parasitic design of these transistors yields extremely high performance products that can perform a multiplicity of tasks.
The 5 emitter nger interdigitated geometry yields an extremely fast transistor with high gain and low operating
currents.
Optimized performance at 2.7 V makes these devices
ideal for use in 900 MHz, 1.8 GHz, and 2.4 GHz battery operated systems as an LNA, gain stage, buer, oscillator, or
active mixer. Typical amplier designs at 900 MHz yield
1.3 dB noise gures with 13 dB or more associated gain at
a 2.7 V, 1 mA bias. Voltage breakdowns are high enough
for use at 5 volts. High gain capability at 1 V, 1 mA makes
these devices a good t for 900 MHz pager applications.
Features
• High Performance Bipolar Transistor Optimized for
Low Current, Low Voltage Operation
• 900 MHz Performance:
AT-30511: 1.1 dB NF, 16 dB GA
AT-30533: 1.1 dB NF, 13 dB G
• Characterized for End-Of-Life Battery Use (2.7 V)
• SOT-23 and SOT-143 SMT Plastic Packages
• Tape-And-Reel Packaging Option Available
• Lead-free
A
Pin Connections and Package Marking
The AT-3 series bipolar transistors are fabricated using
an optimized version of Avago’s 10 GHz fT, 30 GHz f
Self-Aligned-Transistor (SAT) process. The die are nitride
passivated for surface protection. Excellent device uniformity, performance and reliability are produced by the
use of ion-implantation, self-alignment techniques, and
gold metalization in the fabrication of these devices.
MAX
Notes:
Top View. Package Marking provides orientation and identication.
"x" is the date code.
AT-30511, AT-30533 Absolute Maximum Ratings
1000 pF
V
BB
W = 10 L = 1860
W = 10 L = 1000
W = 30 L = 100
W = 30 L = 100
W = 10 L = 1860
1000 pF
V
CC
25 Ω
W = 10 L = 1025
TEST CIRCUIT A: W = 20 L = 100
TEST CIRCUIT B: W = 20 L = 200 x 2
NOT TO SCALE
TEST CIRCUIT
BOARD MATL = 0.062" FR-4 (ε = 4.8)
DIMENSIONS IN MILS
Symbol Parameter Units Absolute Maximum
V
V
V
IC Collector Current mA 8
PT Power Dissipation
Tj Junction Temperature °C 150
T
Notes:
1. Operation of this device above any one of these parameters may cause permanent damage.
2. T
3. Derate at 1.82 mW/°C for TC > 95°C.
Emitter-Base Voltage V 1.5
EBO
Collector-Base Voltage V 11
CBO
Collector-Emitter Voltage V 5.5
CEO
[2] [3]
mW 100
Storage Temperature °C -65 to 150
STG
Mounting Surface
= 25°C.
[1]
Thermal Resistance
[2]
:
θjc = 550°C/W
Electrical Specications, TA = 25°C
AT-30511 AT-30533
Symbol Parameters and Test Conditions Units Min Typ Max Min Typ Max
NF Noise Figure
VCE = 2.7 V, IC = 1 mA f = 0.9 GHz dB 1.1
GA Associated Gain
VCE = 2.7 V, IC = 1 mA f = 0.9 GHz dB 14
[1]
hFE Forward Current VCE = 2.7 V - 70 300 70 300
Transfer Ratio IC = 1 mA
I
I
Notes:
1. Test circuit B, Figure 1. Numbers reect device performance de-embedded from circuit losses.
2. Test circuit A, Figure 1. Numbers reect device performance de-embedded from circuit losses.
Collector Cuto Current VCB = 3 V µA 0.03 0.2 0.03 0.2
CBO
Emitter Cuto Current VEB = 1 V µA 0.1 1.5 0.1 1.5
EBO
Input loss = 0.4 dB; output loss = 0.4 dB.
Input loss = 0.4 dB; output loss = 0.4 dB.
16
[1]
[1]
[1]
1.4
1.1
11
[2]
13
[2]
1.4
[2]
[2]
Figure 1. Test Circuit for Noise Figure and Associated Gain. This Circuit is a Compromise Match Between Best Noise
Figure, Best Gain, Stability, a Practical, Synthesizable Match, and a Circuit Capable of Matching Both the AT-305
and AT-310 Geometries.
2
AT-30511, AT-30533 Characterization Information, TA = 25°C
P 1dB (dBm)
0
0
FREQUENCY (GHz)
1.01.5
10
4
2
0.52.5
6
2.0
8
5 mA
2 mA
G 1dB (dBm)
0
0
FREQUENCY (GHz)
1.01.5
25
10
5
0.52.5
15
2.0
20
5 mA
2 mA
G 1dB (dBm)
0
0
FREQUENCY (GHz)
1.01.5
25
10
5
0.52.5
15
2.0
20
5 mA
2 mA
NOISE FIGURE (dB)
0
0
FREQUENCY (GHz)
1.01.5
2.5
1.0
0.5
0.52.5
1.5
2.0
2.0
1 mA
5 mA
AMPLIFIER NF
NF MIN.
Ga (dB)
0
0
FREQUENCY (GHz)
1.01.5
25
10
5
0.52.5
15
2.0
20
5 mA
1 mA
Ga (dB)
0
0
FREQUENCY (GHz)
1.01.5
25
10
5
0.52.5
15
2
20
5 mA
1 mA
AT-30511 AT-30533
Symbol Parameters and Test Conditions Units Typ Typ
P
VCE = 2.7 V, IC = 5 mA f = 0.9 GHz dBm 7 7
G
VCE = 2.7 V, IC = 5 mA f = 0.9 GHz dB 16.5 15
IP3 Output Third Order Intercept Point, VCE = 2.7 V, IC = 5 mA (opt tuning) f = 0.9 GHz dBm 17 17