S E M I C O N D U C T O R S
DESCRIPTION
The ZAMP003 is an ultra low current low noise amplifier
designed for L band and IF applications. Although the
ZAMP003 has been designed primarily for DBS
applications the ZAMP003 is capable of extending to
frequencies of 2.5GHz so it has a good fit with various
applications. An additional benefit of the ZAMP003 is it's
rising gain characteristic, this has been designed to
counteract the gain losses found at the higher frequencies.
The ZAMP003 has been optimized for input and output
impedance's of 50 ohms. The ZAMP003 complements the
buffer amplifiers in the ZAMP range to give a low current
high performance solution. Packaged in a small SC70-6
with the minimum number of external bias components
required it is the ideal solution for space and current limited
applications.
FEATURES
L and IF frequency band
Low current consumption 6.8mA typical
Gain 14.8dB typical
Rising gain
IP3 5.8dBm @ 1GHz
4.5 to 5.5V Supply Voltage
Unconditionally stable
SC70-6 SMD package
APPLICATIONS
Satellite LNB receivers
Set-top boxes
TV tuners
SMR (Special Mobile Radio)
RLAN/WLAN
General purpose
ZAMP003
PROVISIONAL ISSUE A - MARCH 2003
1
800-2500MHz MMIC WIDEBAND AMPLIFIER
LNA, 15dB Gain, Very Low Current
DEVICE
REEL
SIZE
(inches)
QUANTITY
PER REEL
DEVICE
MARKING
ZAMP003H6TA
7
3000 units
ZP03
ZAMP003H6TC
13"
10000 units
ZP03
ORDERING INFORMATION
Top View
GND
GND
INPUT
1
2
3
OUTPUT
GND
V
CC
6
5
4
CONNECTION DIAGRAM
SC70-6
ABSOLUTE MAXIMUM RATINGS
Supply Voltage
7V
Supply Current
30mA
Operating Temperature
-40 to 85C
Storage Temperature
-50 to 125C
ZAMP003
S E M I C O N D U C T O R S
PROVISIONAL ISSUE A - MARCH 2003
2
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP.
MAX
UNITS
F
O
Operating Frequency
800
2500
MHz
V
CC
Supply Voltage
4.5
5
5.5
V
I
CC
Supply Current
6.8
8
mA
Gp
Power Gain
F = 950
14
14.8
dB
F = 1550 MHz
14.8
dB
F = 2150 MHz
15.1
15.8
dB
NF
Noise Figure
F = 950
5.5
dB
F = 1550 MHz
6.5
dB
F = 2150 MHz
7.5
dB
IP3
3rd Order Intercept Point
F = 950 MHz
4.5
5.8
dBm
F = 1550 MHz
4.5
dBm
F = 2150 MHz
4
dBm
P1dB
1dB Gain Compression
F = 950 to 2150 MHz
-7.5
-6.5
dBm
RL
IN
Input Return Loss
F = 950
14
dB
F = 2150 MHz
14
dB
RL
OUT
Output Return Loss
F = 950
13
dB
F = 2150 MHz
21
dB
Risol
Reverse Isolation
F = 950 MHz
26
dB
F = 2150 MHz
27
dB
K
Stability factor
F = 950 MHz
1.8
F = 2150 MHz
2.1
ELECTRICAL CHARACTERISTICS
Test Conditions (unless otherwise stated): VCC = 5V, Tamb = 25C, Zo = 50 .
ZAMP003
S E M I C O N D U C T O R S
PROVISIONAL ISSUE A - MARCH 2003
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TYPICAL CHARACTERISTICS
Test Conditions (unless otherwise stated): V
CC
= 5V, T
amb
= 25C, Zo = 50 .
ZAMP003
S E M I C O N D U C T O R S
PROVISIONAL ISSUE A - MARCH 2003
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C4
100nF
X7R
C1
100pF
NPO
C2
100pF
NPO
J2
C3
100pF
NPO
3
6
1
5
4
2
IC1
ZAMP003
J1
Vcc
TEST CIRCUIT
Circuit Ref.
Description
Value
Type
C1,C2,C3
Chip ceramic capacitor
100 pF
Murata GRH708 series, size 0805
C4
Chip ceramic capacitor
100 nF
X7R, size 0805
IC1
ZAMP003
Wideband Amplifier, SC70-6
TEST CIRCUIT COMPONENTS LIST
Note: For ZAMP003, L1 and C5 are not fitted.
APPLICATION NOTES
The ZAMP003 is a medium power wideband amplifier
which is designed for low power applications. The
ZAMP003 provides both a 50 Ohm input and output
impedance and thus requires no
additional matching
components.
The input and output signal connections
each require a DC blocking capacitor (C1 and C2). A
suitable value for these capacitors is around 100pF for the
950MHz to 2150MHz frequency range.
For other
frequency ranges the value of the capacitor should be such
that its reactance at the lowest operating frequency is small
when compared to 50 ohms. Supply de-coupling is also
recommended and should take the form of a suitable
100pF capacitor, C3, for the 950MHz to 2150MHz
frequency range. The 100pF capacitor should be mounted
as close to the Vcc pin of the amplifier as is physically
possible.
An additional low frequency de-coupling
capacitor, C4, with a value around 100nF (for the 950MHz
to 2150MHz range) is also advised.
An example layout for a test board for the series can be
seen above. This was designed for an FR4 board 1 x 1 inch,
0.016 inch thick with a copper thickness of 35 microns.
Edge mounted SMA connectors were used for the RF
signals. The inductor is not required for the ZAMP003.
ZAMP003
S E M I C O N D U C T O R S
PROVISIONAL ISSUE A - MARCH 2003
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TEST CIRCUIT LAYOUT
Notes
ZAMP003
S E M I C O N D U C T O R S
PROVISIONAL ISSUE A - MARCH 2003
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Notes
ZAMP003
S E M I C O N D U C T O R S
PROVISIONAL ISSUE A - MARCH 2003
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Europe
Zetex plc
Fields New Road
Chadderton
Oldham, OL9 8NP
United Kingdom
Telephone (44) 161 622 4444
Fax: (44) 161 622 4446
hq@zetex.com
Zetex GmbH
Streitfeldstrae 19
D-81673 Mnchen
Germany
Telefon: (49) 89 45 49 49 0
Fax: (49) 89 45 49 49 49
europe.sales@zetex.com
Americas
Zetex Inc
700 Veterans Memorial Hwy
Hauppauge, NY 11788
USA
Telephone: (1) 631 360 2222
Fax: (1) 631 360 8222
usa.sales@zetex.com
Asia Pacific
Zetex (Asia) Ltd
3701-04 Metroplaza Tower 1
Hing Fong Road
Kwai Fong
Hong Kong
Telephone: (852) 26100 611
Fax: (852) 24250 494
asia.sales@zetex.com
These offices are supported by agents and distributors in major countries world-wide.
This publication is issued to provide outline information only which (unless agreed by the Company in writing) may not be used, applied or reproduced
for any purpose or form part of any order or contract or be regarded as a representation relating to the products or services concerned. The Company
reserves the right to alter without notice the specification, design, price or conditions of supply of any product or service.
For the latest product information, log on to
www.zetex.com
Zetex plc 2003
ZAMP003
S E M I C O N D U C T O R S
8
PROVISIONAL ISSUE A - MARCH 2003
DIM
MILLIMETRES
DIM
MILLIMETRES
MIN
MAX
MIN
MAX
A
1.00
E
2.10 BSC
A1
0.10
E1
1.25
1.35
A2
0.70
0.90
e
0.65 BSC
b
0.15
0.30
e1
1.30 BSC
C
0.08
0.25
L
0.26
0.46
D
2.00 BSC
0
8
PACKAGE DIMENSIONS
PACKAGE DIMENSIONS SC706
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