Ultra LNAs
Ultra Low Noise Amplifiers
About ultra LNAs: best-in-class noise figure for the most sensitive receive paths — GNSS, deep-space telemetry, low-orbit satellite ground links, and any system where every fraction of a dB of NF buys more range. Read more »Read less «
An ultra LNA is a low-noise amplifier engineered for the lowest practical noise figure, often well under 1 dB at room temperature. Because the first amplifier in a receive chain dominates the system noise figure (per Friis), shaving a few tenths of a dB at the input translates directly into proportionally more receiver range, more link margin, or more sensitivity for the same antenna gain. That makes ultra LNAs the right pick for the most demanding receive paths — satellite ground terminals, GPS / GNSS designs that have to survive jamming or low-elevation satellites, deep-space telemetry, radio astronomy front ends, and any system whose fundamental performance is set by how well it can hear weak signals.
The trade-off is linearity: pushing for the lowest NF generally means lower OIP3 / OP1 than a high-linearity or power LNA. That's acceptable when the operating environment is benign (no strong adjacent transmitters), and is the right call any time sensitivity dominates the link budget. Most parts are internally matched to 50 Ω with a single bias path.
Typical applications include GPS / GNSS at the antenna, LNB front ends for satellite TV and SatCom, low-orbit satellite communications ground stations, deep-space and radio astronomy receivers, and high-sensitivity test instrumentation. AEC-Q100 grade-2 qualified variants are denoted with a "-W" suffix.
The table below lists the active ultra LNA portfolio sorted by SKU, with frequency range, gain, noise figure, OIP3, supply current, and package. Click any SKU for the full data sheet, S-parameters, and reference designs.
| Product | Description | Min Freq (GHz) | Max Freq (GHz) | Parametric Charts | Reference Conditions | Gain(dB) | NF(dB) | OP1dB (dBm) | OIP3 (dBm) | Vdd Range (V) | Idd Range (mA) | Features | Package (mm) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| GRF2051 | Ultra-Low Noise Amplifier |
0.35 | 3.8 | 5V/70mA/1.9GHz |
19.0 | 0.37 | 21.0 | 36.0 | 2.7-5.0 | 20-100 | Ultra-low noise; high gain; flex bias |
2.0 QFN-12 | |
| GRF2052 | Ultra-LNA for Infrastructure |
1.7 | 4.5 | 5V/70mA/2.5GHz |
19.2 | 0.5 | 21.0 | 38.0 | 2.7-5.0 | 20-100 | Ultra-low noise; high gain; flex bias |
2.0 QFN-12 | |
| GRF2070 | Ultra-Low Noise Amplifier |
0.01 | 1.7 | 5V/70mA/900MHz |
21 | 0.4 | 20 | 39 | 2.7-5.0 | 20-100 | Ultra-low noise; high gain; flex bias |
2.0 DFN-8 | |
| GRF2071 | Ultra Low Noise Amplifier |
0.7 | 2.7 | 5V/70mA/1.9GHz |
19 | 0.36 | 20 | 36 | 2.7-5.0 | 20-100 | Ultra-low noise; high gain; flex bias |
2.0 DFN-8 | |
| GRF2071W | Ultra-Low Noise Amplifier |
0.7 | 2.7 | 5V/70mA/2332.5MHz |
19 | 0.45 | 20 | 36 | 2.7-5.0 | 20-100 | Ultra-low noise; high gain; flex bias |
2.0 DFN-8 | |
| GRF2072 | Ultra-LNA for Infrastructure |
1.17 | 3.8 | 5V/70mA/2.5GHz |
19.8 | 0.55 | 20.0 | 37.5 | 2.7-5.0 | 20-100 | Ultra-low noise; high gain; flex bias |
2.0 DFN-8 | |
| GRF2073 | Ultra-Low Noise Amplifier |
1.0 | 6.8 | 5V/70mA/3.6GHz |
18.6 | 0.65 | 18.0 | 35.0 | 2.7-5.0 | 20-100 | Ultra-low noise; high gain; flex bias |
2.0 DFN-8 | |
| GRF2073W | Ultra-Low Noise Amplifier |
1.0 | 6.8 | 5V/70mA/2332.5MHz |
20.5 | 0.40 | 20 | 35.0 | 2.7-5.0 | 20-100 | Ultra-low noise; high gain; flex bias |
2.0 DFN-8 | |
| GRF2074 | Ultra-Low Noise Amplifier |
1.0 | 6.0 | 5V/60mA/2332.5MHz |
20.5 | 0.35 | 17.5 | 35.5 | 2.7-5.0 | 20-100 | Ultra-low noise; high gain; flex bias |
2.0 DFN-8 | |
| GRF2074W | Ultra Low Noise Amplifier |
1.0 | 6.0 | 5V/60mA/2332.5MHz |
20.5 | 0.35 | 17.5 | 35.5 | 2.7-5.0 | 20-100 | Ultra-low noise; high gain; flex bias |
2.0 DFN-8 | |
| GRF2076 | Ultra-Low Noise Amplifier with Bypass |
0.6 | 7.125 | 5V/70mA/3.6GHz |
17.2 | 1.1 | 22.0 | 38.0 | 2.7-6.0 | 20-100 | Ultra-low noise; high gain; flex bias;bypass |
1.5 DFN-6 | |
| GRF2080 | Ultra-LNA with Shutdown |
0.01 | 2.2 | 5V/65mA/900MHz |
20.8 | 0.35 | 20.0 | 39.5 | 2.7-5.0 | 20-100 | Ultra-low noise; high gain; digital shutdown |
2.0 DFN-8 | |
| GRF2081 | Ultra-LNA with Shutdown |
0.38 | 2.7 | 5V/75mA/1.9GHz |
18.5 | 0.4 | 19.5 | 37.5 | 2.7-5.0 | 20-100 | Ultra-low noise; high gain; digital shutdown |
2.0 DFN-8 | |
| GRF2082 | Ultra-LNA with Shutdown |
0.3 | 3.8 | 5V/75mA/2.5GHz |
19 | 0.55 | 20.5 | 38 | 2.7-5.0 | 20-100 | Ultra-low noise; high gain; digital shutdown |
2.0 DFN-8 | |
| GRF2083 | Ultra-LNA with Shutdown |
0.729 | 8.5 | 5V/75mA/3.6GHz |
17.8 | 0.65 | 18.5 | 36.5 | 2.7-5.0 | 20-100 | Ultra-low noise; high gain; digital shutdown |
2.0 DFN-8 | |
| GRF2084 | Ultra-LNA with Shutdown |
2.0 | 7.2 | 5V/71mA/3.6GHz |
18.2 | 0.48 | 19.5 | 37.9 | 2.7-5.0 | 20-100 | Ultra-low noise; high gain; digital shutdown |
2.0 DFN-8 | |
| GRF2093 | Ultra-Low Noise Amplifier |
1.0 | 6.0 | 5V/55mA/2332.5MHz |
21.0 | 0.37 | 19.0 | 35.5 | 2.7-5.0 | 30-100 | Ultra-low noise; high gain; flex bias |
1.5 DFN-6 | |
| GRF2093W | Ultra-Low Noise Amplifier |
1.0 | 6.0 | 5V/55mA/2332.5MHz |
21.0 | 0.37 | 19.0 | 35.5 | 2.7-5.0 | 30-100 | Ultra-low noise; high gain; flex bias |
1.5 DFN-6 | |
| GRF2101 | 5 GHz, high gain LNA |
4.0 | 10.0 | 3.3V/18mA/5.5GHz |
18.0 | 0.9 | 10.0 | 22.0 | 2.7-5.0 | 12-28 | High gain, low noise; low cost |
1.5 DFN-6 | |
| GRF2105 | Broadband, Linear LNA for Small Cells |
0.15 | 5.36 | 5V/70mA/2.5GHz |
20.7 | 0.77 | 22.5 | 36.0 | 2.7-5.0 | 20-90 | Low noise; high, flat gain; flex bias |
1.5 DFN-6 | |
| GRF2105W | Enhanced Gain Flatness LNA |
0.15 | 5.36 | 5V/70mA/2.5GHz |
20.5 | 0.77 | 21.0 | 37.0 | 2.7-6.0 | 20-90 | Low noise; high, flat gain; flex bias |
1.5 DFN-6 | |
| GRF2110 | LNA/Linear Driver |
5 | 8 | 5V/70mA/6GHz |
16.3 | 1.2 | 22 | 38 | 2.7-5.0 | 70 | Low noise; high, flat gain; flex bias |
1.5 DFN-6 | |
| GRF2111 | Low Noise Amplifier / Linear Driver |
8.0 | 12.0 | 5V/65mA/10GHz |
12.9 | 1.2 | 20.6 | 36 | 2.7-6.0 | 65 | Low noise; flat gain; broadband |
1.5 DFN-6 | |
| GRF2133 | Ultra-High Gain LNA |
0.1 | 4.2 | 5.0V/60mA/1950MHz |
28 | 0.6 | 20 | 30 | 1.8-5.0 | 35-120 | Ultra-high gain; low noise; flex bias |
1.5 DFN-6 | |
| GRF2133-W | Ultra-High Gain LNA |
0.1 | 4.2 | 5.0V/60mA/1950MHz |
28 | 0.6 | 20 | 31 | 1.8-5.0 | 35-120 | Ultra-high gain; low noise; flex bias |
1.5 DFN-6 | |
| GRF2171 | High Gain Ultra LNA |
2.5 | 5.0 | 5V/75mA/3.6GHz |
29.5 | 0.75 | 18.7 | 41.5 | 5.0 | 75 | Ultra-high gain, ultra-low noise |
1.5 DFN-6 | |
| GRF2583 | LNA with Selectable Gain/Bypass |
4.4 | 6 | 5V/52mA/5.9GHz |
27.2 | 1.2 | 16 | 33 | 2.7-6.0 | 52 | Ultra-low noise; selectable gain; flex bias |
1.5 DFN-6 | |
| GRF2584 | High Gain Low Noise Amplifier |
3.0 | 9.0 | 5V/50mA/5.9GHz |
32.2 | 1.2 | 16.3 | 29.4 | 2.7-6.0 | 50 | Ultra-high gain, ultra-low noise |
1.5 DFN-6 |
* = Product is in Pre-Production. Contact [email protected] for minimum order quantity.