4
EDS-102743 Rev. D
SBA-5089 DC-5 GHz Cascadable MMIC Amplifier
303 South Technology Ct., Broomfield, CO 80021 Phone: (800) SMI-MMIC http://www.sirenza.com
Reference
Designator
Frequency (Mhz)
500
850
1950
2400
3500
C
B
220 pF
100 pF
68 pF
56 pF
39 pF
C
D
100 pF
68 pF
22 pF
22 pF
15 pF
L
C
68 nH
33 nH
22 nH
18 nH
15 nH
Basic Application Circuit
RF in
RF out
1 uF
C
B
C
B
C
D
V
S
R
BIAS
L
C
1
2
3
4
1000
pF
SBA-5089
Application Circuit Element Values
Part Number Ordering Information
The part will be marked with an “BA5” or “BA5Z”
designator on the top surface of the package.
Part Identification Marking
Pin #
Function
Description
1
RF IN
RF input pin. This pin requires the use
of an external DC blocking capacitor
chosen for the frequency of operation.
2, 4
GND
Connection to ground. Use via holes
for best performance to reduce lead
inductance as close to ground leads as
possible.
3
RF OUT/
BIAS
RF output and bias pin. DC voltage is
present on this pin, therefore a DC
blocking capacitor is necessary for
proper operation.
Caution: ESD sensitive
Appropriate precautions in handling, packaging
and testing devices must be observed.
Recommended Bias Resistor Values for I
D
=80mA
R
BIAS
=( V
S
-V
D
) / I
D
Supply Voltage(V
S
)
7.5 V
8 V
10 V
12 V
R
BIAS
33
39
68
91
Note: R
BIAS
provides DC bias stability over temperature.
1 uF
R
BIAS
1000 pF
C
D
C
B
C
B
L
C
V
S
BA5
Mounting Instructions
1. Solder the copper pad on the backside of the
device package to the ground plane.
2. Use a large ground pad area with many plated
through-holes as shown.
3. We recommend 1 or 2 ounce copper. Measurement
for this data sheet were made on a 31 mil thick FR-4
board with 1 ounce copper on both sides.
Advanced Data Sheet
BA5Z
1
1
2
2
3
3
4
BA5
1
1
2
2
3
3
4
Part Number
Reel Size
Devices/Reel
SBA-5089
7"
1000
SBA-5089Z
7"
1000