This document introduces a 50Ω / 50Ω low noise amplifier model SMA427A. The amplifier features cascading capability, unconditional stability, a gain of 17 dB at 1.8 GHz, an IP3out of +7.4 dBm at 1.575 GHz, and a noise figure of 2.2 dB at 1.8 GHz.
The SMA427A is a 50 ohm-gain block low noise amplifier (LNA) designed for 1-2 GHz applications such as GPS and cellular systems. It features unconditional stability and is housed in an ultra-miniature SOT323-4L (SC-70) lead-free surface mount package. The device utilizes STMicroelectronics' Silicon MMIC technology to achieve excellent RF performance with only two external components required in the 1000-2000 MHz frequency range.
| Supply Voltage | 2 V to 5 V |
|---|---|
| Supply Current | 9.5 mA |
| Insertion Power Gain (1.8 GHz) | 17 dB |
| Noise Figure (1.8 GHz) | 2.2 dB |
| Output Intercept Point (1.575 GHz) | +7.4 dBm |
| Operating Temperature | -65 to +150 °C |
| Package Type | SOT323-4L (SC-70) |
The amplifier is designed for the 1000-2000 MHz frequency range.
Yes, the device is unconditionally stable.
The typical device voltage is between 2 V and 5 V.