SKY67101-396LF Buy Now
0.4-1.2 GHz High Linearity, Active Bias Low Noise Amplifier

The SKY67101-396LF is GaAs, pHEMT Low Noise Amplifier (LNA) with an active bias and high linearity performance. The advanced GaAs pHEMT enhancement mode process provides excellent return loss, low noise, and high linearity performance.

The internal active bias circuitry provides stable performance over temperature and process variation. The device offers the ability to externally adjust supply current and gain. Supply voltage is applied to the RFOUT/VDD pin through an RF choke inductor. Pin 4 (VIN) should be connected to RFOUT/VDD through an external resistor to control the supply current. The RFIN and RFOUT/VDD pins should be DC blocked to ensure proper operation. Pin 5 (FEEDBACK) is connected through an RC network to externally adjust the gain of the device without affecting the Noise Figure (NF) of the LNA.

The SKY67101-396LF operates in the frequency range of 0.4 to 1.2 GHz. For higher frequency operation, the pin-compatible SKY67100-396LF should be used.

The switch is manufactured in a compact, 2 x 2 mm, 8-pin Dual Flat No-Lead (DFN) package.


  • Ultra Low Noise Figure: 0.57 dB @ 0.9 GHz
  • Input and output return loss > 20 dB @ 0.9 GHz
  • High OIP3 performance: +33.8 dBm @ 0.9 GHz
  • Adjustable supply current and gain
  • Temperature and process-stable active bias
  • Miniature DFN (8-pin, 2 x 2 mm) package (MSL1 @ 260 °C per JEDEC J-STD-020)
Data Sheets SKY67101-396LF 0.4-1.2 GHz High Linearity, Active Bias Low-Noise Amplifier SKY67101_396LF_201266I.pdf (1353 KB)
Designer Info SKY67100 / SKY67101 / SKY67102 Gerber-Files (13 KB)
Designer Info SKY67101: ADS Design Kit (49 KB)
Designer Info SKY67101 Design Kit (51 KB)
Designer Info SKY67101 S Parameters SKY67101_ADS_de_embedded_4V_55mA_.s2p (106 KB)
Designer Info SKY67101: ADS Evaluation Board Project SKY67101_bb.zap (2761 KB)
Designer Info SKY67101 Circuit Model SKY67101_BB_sim_prj.zap (1015 KB)
Designer Info SKY67101 Circuit Model Read Me SKY67101_Model_Read_Me.pdf (80 KB)
Designer Info SKY67101: Installation Instructions SKY67101_Model_Readme.txt (1 KB)
White Paper Designing Ultra Low Noise Amplifiers for Infrastructure Receiver Applications WP_E_ModeLNA_9_13_10A.pdf (1015 KB)
ProductName : SKY67101-396LF
Frequency Range (GHz) : 0.4-1.2
Test Frequency (GHz) : 0.9
Gain Typ. (dB) : 17.5
OIP3 (dBm) : 34
OP1 dB (dBm) : 19
VDD (V) : 4
Supply Current Typ. (mA) : 56
Noise Figure Typ. (dB) : 0.5
Package : DFN, 8-pin
Package (mm) : 2 x 2 x 0.75
Product Information:
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