HMC287MS8 / 287MS8E
v02.0605
GaAs MMIC LOW NOISE AMPLIFIER
with AGC, 2.3 - 2.5 GHz
4
Typical Applications
Features
LNA for Spread Spectrum Applications:
Gain: 21 dB
• BLUETOOTH
Noise Figure: 2.5 dB
Gain Adjustment: 30 dB
Single Positive Supply: +3V
No External Components
Ultra Small Package: MSOP8G
• HomeRF
• 802.11 WLAN
• 2.5 GHz Radios
Functional Diagram
General Description
The HMC287MS8 & HMC287MS8E are low cost
Low Noise Amplifiers (LNA) offering 21 dB of gain
and a 2.5 dB noise figure from a single positive +3V
supply that requires only 9 mA. The HMC287MS8 &
HMC287MS8E can be used as variable gain LNAs,
offering 30 dB of gain control, which is controlled
with 0 to 3V analog voltages. The typical output 1 dB
compression point is +3 dBm and OIP3 is +7 dBm
when in the maximum gain state. The compact LNA
design utilizes on-chip matching for repeatable gain
and noise figure performance and eliminates the need
for external matching circuitry to reduce the overall
size of the LNA function.
Electrical Specifications, TA = +25° C, Vdd= +3V
Parameter
Min.
15
Typ.
Max.
Units
GHz
dB
Frequency Range
2.3 - 2.5
Gain
21
0.03
30
2.5
10
6
27
Gain Variation Over Temperature
Gain Adjustment Range (Vctl 0 to +3V)
Noise Figure (Vctl = 0V)
0.04
dB/°C
dB
3.0
dB
Input Return Loss
5
3
dB
Output Return Loss
dB
Output 1 dB Compression (P1dB)
Output Third Order Intercept (IP3)
Control Voltage (Vctl)
-2
3
3
dBm
dBm
Vdc
mA
7
0
Vdd
15
Supply Current (Idd)(Vdd = +3.0 Vdc)
9
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