SiGe series low-temperature low-noise amplifier

CITLF1 is a SiGe low-noise amplifier used for extremely low-noise and low-temperature applications. The amplifier utilizes resistance feedback to achieve good input matching (S11) and high gain stability. The frequency range of the amplifier is 0.1 MHz to 1.5 GHz, but 5 GHz is still available.

model

5. CITLF1 Cryogenic SiGe Low Noise Amplifier (0.001 to 1.5 GHz)

6. CITLF2 Cryogenic SiGe Low Noise Amplifier (10 MHz to 2 GHz)

7. CITLF3 Cryogenic SiGe Low Noise Amplifier (10 MHz to 2GHz)

8. CITLF4 Cryogenic SiGe Low Noise Amplifier (0.5 to 4 GHz)

CITLF1Cryogenic SiGe Low Noise Amplifier

The CITLF1 is a SiGe low-noise amplifier used for extremely low-noise and low-temperature applications. The amplifier utilizes resistance feedback to achieve good input matching (S11) and high gain stability. The frequency range of the amplifier is 0.1 MHz to 1.5 GHz, but 5 GHz is still available.

It is powered by a single positive DC power supply and can reduce power consumption to 1.5V 3.0mA. A voltage of up to 6V will not damage the amplifier. It is recommended to limit the power supply current of the amplifier to within 100mA. Series resistors can be used. For example, when the amplifier is at 20K, a 270 ohm,+5V power supply will result in 2.5V, 9mA.

The amplifier includes a DC bias tee for connecting to external devices at the input of the amplifier. A bias tee is formed by two 20K resistors connected to the input; One can be used as a current source, and the other can be used to sense the voltage across external devices. The voltage applied to the bias tube has no effect on the operation of the amplifier.

The size of the amplifier is 20.7mm x 15.9mm x 8.7mm, excluding connectors. The left side is the input SMA and the right side is the output SMA, as shown above.