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PDF AD8353 Data sheet ( Hoja de datos )
| Número de pieza | AD8353 | |
| Descripción | RF Gain Block | |
| Fabricantes | Analog Devices | |
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Data Sheet
FEATURES
Fixed gain of 20 dB
Operational frequency of 1 MHz to 2.7 GHz
Linear output power up to 9 dBm
Input/output internally matched to 50 Ω
Temperature and power supply stable
Noise figure: 5.3 dB
Power supply: 3 V or 5 V
APPLICATIONS
VCO buffers
General Tx/Rx amplification
Power amplifier predrivers
Low power antenna drivers
GENERAL DESCRIPTION
The AD8353 is a broadband, fixed-gain, linear amplifier that
operates at frequencies from 1 MHz up to 2.7 GHz. It is
intended for use in a wide variety of wireless devices, including
cellular, broadband, CATV, and LMDS/MMDS applications.
By taking advantage of Analog Devices, Inc., high performance,
complementary Si bipolar process, these gain blocks provide
excellent stability over process, temperature, and power supply.
This amplifier is single-ended and internally matched to 50 Ω
with a return loss of greater than 10 dB over the full operating
frequency range.
The AD8353 provides linear output power of 9 dBm with 20 dB
of gain at 900 MHz when biased at 3 V and an external RF
choke is connected between the power supply and the output
pin. The dc supply current is 42 mA. At 900 MHz, the output
third-order intercept (OIP3) is greater than 23 dBm and is
19 dBm at 2.7 GHz.
1 MHz to 2.7 GHz
RF Gain Block
AD8353
FUNCTIONAL BLOCK DIAGRAM
BIAS AND VREF
VPOS
RFIN
COM1
AD8353
Figure 1.
RFOUT
COM2
The noise figure is 5.3 dB at 900 MHz. The reverse isolation
(S12) is −36 dB at 900 MHz and −30 dB at 2.7 GHz.
The AD8353 can also operate with a 5 V power supply; in
which case, no external inductor is required. Under these
conditions, the AD8353 delivers 8 dBm with 20 dB of gain at
900 MHz. The dc supply current is 42 mA. At 900 MHz, the
OIP3 is greater than 22 dBm and is 19 dBm at 2.7 GHz. The noise
figure is 5.6 dB at 900 MHz. The reverse isolation (S12) is −35 dB.
The AD8353 is fabricated on Analog Devices proprietary, high
performance, 25 GHz, Si complementary, bipolar IC process.
The AD8353 is available in a chip scale package that uses an
exposed paddle for excellent thermal impedance and low
impedance electrical connection to ground. It operates over a
−40°C to +85°C temperature range, and an evaluation board is
also available.
Rev. E
Document Feedback
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2002–2013 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com
1 page  
AD8353
Data Sheet
VS = 5 V, TA = 25°C, no external inductor between RFOUT and VPOS, ZO = 50 Ω, unless otherwise noted.
Table 2.
Parameter
Test Conditions/Comments
Min
OVERALL FUNCTION
Frequency Range
Gain
Delta Gain
Gain Supply Sensitivity
Reverse Isolation (S12)
f = 900 MHz
f = 1.9 GHz
f = 2.7 GHz
f = 900 MHz, −40°C ≤ TA ≤ +85°C
f = 1.9 GHz, −40°C ≤ TA ≤ +85°C
f = 2.7 GHz, −40°C ≤ TA ≤ +85°C
VPOS ± 10%, f = 900 MHz
f = 1.9 GHz
f = 2.7 GHz
f = 900 MHz
f = 1.9 GHz
1
f = 2.7 GHz
RF INPUT INTERFACE
Input Return Loss
Pin RFIN
f = 900 MHz
f = 1.9 GHz
f = 2.7 GHz
RF OUTPUT INTERFACE
Output Compression Point
Delta Compression Point
Output Return Loss
Pin RFOUT
f = 900 MHz
f = 1.9 GHz
f = 2.7 GHz
f = 900 MHz, −40°C ≤ TA ≤ +85°C
f = 1.9 GHz, −40°C ≤ TA ≤ +85°C
f = 2.7 GHz, −40°C ≤ TA ≤ +85°C
f = 900 MHz
f = 1.9 GHz
f = 2.7 GHz
DISTORTION/NOISE
Output Third-Order Intercept
Output Second-Order Intercept
Noise Figure
f = 900 MHz, ∆f = 1 MHz, PIN = −28 dBm
f = 1.9 GHz, ∆f = 1 MHz, PIN = −28 dBm
f = 2.7 GHz, ∆f = 1 MHz, PIN = −28 dBm
f = 900 MHz, ∆f = 1 MHz, PIN = −28 dBm
f = 900 MHz
f = 1.9 GHz
f = 2.7 GHz
POWER INTERFACE
Supply Voltage
Total Supply Current
Supply Voltage Sensitivity
Temperature Sensitivity
Pin VPOS
−40°C ≤ TA ≤ +85°C
4.5
35
Typ
19.5
17.6
15.7
−0.96
−1.18
−1.38
0.09
−0.01
−0.09
−35.4
−34.6
−30.2
22.9
21.7
11.5
8.3
8.1
7.5
−1.05
−1.49
−1.33
27
22
14.3
22.8
20.6
19.5
30.3
5.6
6.3
7.1
5
42
4.3
45.7
Max
2700
5.5
52
Unit
MHz
dB
dB
dB
dB
dB
dB
dB/V
dB/V
dB/V
dB
dB
dB
dB
dB
dB
dBm
dBm
dBm
dB
dB
dB
dB
dB
dB
dBm
dBm
dBm
dBm
dB
dB
dB
V
mA
mA/V
µA/°C
Rev. E | Page 4 of 16
5 Page 
AD8353
25
20
GAIN AT 5.5V
15 GAIN AT 5.0V
GAIN AT 4.5V
10
5
0
0
500
1000
1500
2000
2500
3000
FREQUENCY (MHz)
Figure 21. Gain vs. Frequency, VS = 4.5 V, 5 V, and 5.5 V, TA = 25°C
0
–5
–10
–15
–20
–25
S12 AT 5V
–30 S12 AT 5.5V
–35
–40
0
S12 AT 4.5V
500
1000
1500
2000
2500
3000
FREQUENCY (MHz)
Figure 22. Reverse Isolation vs. Frequency, VS = 4.5 V, 5 V, and 5.5 V, TA = 25°C
10
9 P1dB AT 5.5V
8
7
P1dB AT 4.5V
6 P1dB AT 5.0V
5
4
3
2
1
0
0
500
1000
1500
2000
2500
3000
FREQUENCY (MHz)
Figure 23. P1dB vs. Frequency, VS = 4.5 V, 5 V, and 5.5 V, TA = 25°C
Data Sheet
25
GAIN AT –40°C
20
GAIN AT +85°C
15
GAIN AT +25°C
10
5
0
0
500
1000
1500
2000
2500
3000
FREQUENCY (MHz)
Figure 24. Gain vs. Frequency, VS = 5 V, TA = −40°C, +25°C, and +85°C
0
–5
–10
–15
–20
S12 AT +25°C
–25
–30 S12 AT +85°C
–35
–40
0
S12 AT –40°C
500
1000
1500
2000
2500
3000
FREQUENCY (MHz)
Figure 25. Reverse Isolation vs. Frequency, VS = 5 V, TA = −40°C, +25°C, and +85°C
12
P1dB AT +85°C
10
P1dB AT +25°C
8
6 P1dB AT –40°C
4
2
0
0
500
1000
1500
2000
2500
3000
FREQUENCY (MHz)
Figure 26. P1dB vs. Frequency, VS = 5 V, TA = –40°C, +25°C, and +85°C
Rev. E | Page 10 of 16
11 Page | ||
| Páginas | Total 17 Páginas | |
| PDF Descargar | [ Datasheet AD8353.PDF ] | |
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