HMC475ST89 / 475ST89E
v02.0710
InGaP HBT GAIN BLOCK
MMIC AMPLIFIER, DC - 4.5 GHz
Typical Applications
Features
The HMC475ST89 / HMC475ST89E is an ideal RF/IF
gain block & LO or PA driver:
P1dB Output Power: +22 dBm
8
Gain: 21.5 dB
• Cellular / PCS / 3G
Output IP3: +35 dBm
• Fixed Wireless & WLAN
• CATV, Cable Modem & DBS
• Microwave Radio & Test Equipment
• IF and RF Applications
Cascadable 50 Ohm I/Os
Single Supply: +8V to +12V
Industry Standard SOT89 Package
Functional Diagram
General Description
The HMC475ST89(E) is a InGaP Heterojunction
Bipolar Transistor (HBT) Gain Block MMIC SMT
amplifier covering DC to 4.5 GHz. Packaged in an
industry standard SOT89, the amplifier can be used
as a cascadable 50 Ohm RF/IF gain stage as well as
a LO or PA driver with up to +25 dBm output power.
The HMC475ST89(E) offers 21.5 dB of gain and +35
dBm output IP3 at 850 MHz while requiring only 110
mA from a single positive supply. The Darlington
topology results in reduced sensitivity to normal
process variations and excellent gain stability over
temperature while requiring a minimal number of
external bias components.
Electrical Specifications, Vs= 8.0 V, Rbias= 9.1 Ohm, TA = +25° C
Parameter
Min.
Typ.
Max.
Units
DC - 1.0 GHz
1.0 - 2.0 GHz
2.0 - 3.0 GHz
3.0 - 4.0 GHz
4.0 - 4.5 GHz
DC - 4.5 GHz
DC - 1.0 GHz
1.0 - 2.0 GHz
2.0 - 4.5 GHz
DC - 1.0 GHz
1.0 - 4.5 GHz
DC - 4.5 GHz
DC - 1.0 GHz
1.0 - 2.0 GHz
2.0 - 3.0 GHz
3.0 - 4.0 GHz
4.0 - 4.5 GHz
DC - 2.5 GHz
2.5 - 4.5 GHz
DC - 3.0 GHz
3.0 - 4.5 GHz
19.5
17.5
14.5
11.5
9
21.5
19.5
16.5
13.5
12
0.008
11
14
14
13
10
dB
dB
dB
dB
dB
dB/ °C
dB
dB
dB
dB
Gain
Gain Variation Over Temperature
Input Return Loss
0.012
Output Return Loss
Reverse Isolation
dB
dB
25
19.0
18.0
17.5
13.0
11.0
22.0
21.0
19.5
16.0
14.0
35
30
3.5
3.8
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dB
Output Power for 1 dB Compression (P1dB)
Output Third Order Intercept (IP3)
(Pout= 0 dBm per tone, 1 MHz spacing)
Noise Figure
dB
Supply Current (Icq)
110
135
mA
Note: Data taken with broadband bias tee on device output.
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
8 - 74