UMS LNA Amplifiers:RF Low Noise Amplifiers from 2GHz to 70GHz
In the design of radio frequency systems, the low-noise amplifier (LNA) is the key component that determines the reception sensitivity. UMS (United Monolithic Semiconductors) offers a complete LNA product line covering the frequency range from 2GHz to 70GHz, which is widely used in 5G communications, radar systems, satellite communications, and test equipment.
UMS LNA Models
| Reference | RF Bandwidth (GHz) | RF Bandwidth (GHz) | Bias (mA) | Bias (V) | Gain (dB) | Gain Flatness (+/-dB) | Noise Figure (dB) | P-1dB OUT (dBm) | Case |
| (Min) | (Max) | ||||||||
| CHA1008-99F | 80 | 105 | 115 | 3 | 17 | 1 | 6.5 | 5 | Die |
| CHA1010-99F | 7 | 11 | 30 | 5 | 32 | 1.1 | 1 | 5.5 | Die |
| CHA1077a98F | 76 | 77 | 80 | 5 | 15 | 0.5 | 4.5 | 9 | Die |
| CHA1252-QDG | 11 | 18 | 30 | 2 | 26 | - | 1.3 | 7 | QFN |
| CHA1351-QAG | 24 | 32 | 30 | 2 | 24 | - | 1.3 | 5 | QFN |
| CHA2050-QDG | 17 | 21.5 | 30 | 2 | 26 | - | 1.3 | 6 | QFN |
| CHA2063a99F | 7 | 13 | 40 | 4 | 19 | 2 | 2 | 8 | Die |
| CHA2066-99F | 10 | 16 | 50 | 4 | 16 | 0.5 | 2 | 10 | Die |
| CHA2066-QAG | 10 | 16 | 50 | 4 | 16 | 1.5 | 2.5 | 10 | QFN |
| CHA2069-99F | 18 | 31 | 55 | 4.5 | 22 | 1 | 2.5 | 10 | Die |
| CHA2069-FAB | 16 | 32 | 55 | 4.5 | 22 | 1 | 2.5 | 10 | Hermetic SMD |
| CHA2069-QDG | 18 | 31 | 65 | 4.5 | 20 | 2 | 3 | 10.5 | QFN |
| CHA2080-98F | 71 | 86 | 75 | 4 | 22 | 0.8 | 3.5 | 10 | Die |
| CHA2090-99F | 17 | 24 | 55 | 5 | 23 | 1 | 2 | 10 | Die |
| CHA2110-98F | 7 | 12 | 42 | 3 | 19 | - | 1.2 | 10.5 | Die |
| CHA2110-QDG | 7 | 12 | 45 | 4 | 19 | - | 1.2 | 10 | QFN |
| CHA2157-99F | 55 | 60 | 80 | 3.3 | 10 | 1 | 3.5 | 15 | Die |
| CHA2159-99F | 55 | 65 | 115 | 3.5 | 20 | 1 | 4 | 14 | Die |
| CHA2190-99F | 20 | 30 | 50 | 4 | 15 | 0.5 | 2.2 | 11 | Die |
| CHA2193-99F | 20 | 30 | 60 | 3.5 | 18 | 0.5 | 2 | 8 | Die |
| CHA2266-99F | 12.5 | 17 | 130 | 4 | 34 | 0.5 | 2.5 | 14.5 | Die |
| CHA2352-98F | 46 | 52 | 55 | 3.3 | 21 | - | 4 | 12 | Die |
| CHA2362-98F | 26 | 40 | 65 | 4 | 22 | - | 2 | 9 | Die |
| CHA2362-99F | 26 | 40 | 65 | 4 | 22 | - | 2 | 8 | Die |
| CHA2368-98F | 50 | 71 | 75 | 3.3 | 21 | - | 3.5 | 12 | Die |
| CHA2394-99F | 36 | 40 | 60 | 3.5 | 21 | 1.5 | 3 | 8 | Die |
| CHA2411-QDG | 20 | 25 | 43 | 5 | 30 | - | 2.5 | -14 | QFN |
| CHA2441-QAG | 22 | 26 | 50 | 3.3 | 25.5 | 0.25 | 3 | 10.5 | QFN |
| CHA2494-98F | 34 | 44 | 80 | 4 | 20 | 1.2 | 3 | 12 | Die |
| CHA2494-QEG | 34 | 44 | 80 | 4 | 22 | 1.2 | 3 | 12 | QFN |
| CHA2595-98F | 27.5 | 43.5 | 61 | 3.3 | 20 | - | 2 | 11 | Die |
| CHA2595-QDG | 27.5 | 43.5 | 61 | 3.3 | 20 | - | 2 | 11 | QFN |
| CHA3024-99F | 2 | 22 | 100 | 5 | 15 | 0.5 | 3 | 18 | Die |
| CHA3024-FDB | 2 | 22 | 100 | 5 | 15 | - | 3 | 18 | Hermetic SMD |
| CHA3024-QGG | 2 | 22 | 100 | 5 | 15 | - | 3 | 18 | QFN |
| CHA3218-99F | 2 | 18 | 120 | 4 | 24 | 1 | 2 | 15 | Die |
| CHA3656-FAB | 5.8 | 16 | 70 | 3.3 | 20 | - | 1.75 | 14.5 | Hermetic SMD |
| CHA3656-QAG | 5.8 | 17 | 68 | 3 | 20 | 0.5 | 1.7 | 14 | QFN |
| CHA3666-99F | 6 | 17 | 80 | 4 | 21 | 0.5 | 1.8 | 17 | Die |
| CHA3666-FAB | 6 | 16 | 80 | 4 | 21 | 1 | 1.8 | 17 | Hermetic SMD |
| CHA3666-QAG | 5.8 | 17 | 80 | 4 | 21 | 0.5 | 1.8 | 16 | QFN |
| CHA3688aQDG | 12.5 | 30 | 85 | 4 | 26 | 2 | 2 | 14 | QFN |
| CHA3689-99F | 12.5 | 30 | 90 | 4 | 26 | 2 | 2 | 14 | Die |
| CHA3801-99F | 1 | 2 | 70 | 70 | 28 | 0.5 | 1.5 | 15 | Die |
| CHA3801-FAB | 1 | 2 | 70 | 70 | 28 | 0.5 | 1.5 | 16 | Hermetic SMD |
| CHA3801-QDG | 1 | 2 | 70 | 5 | 28 | 0.5 | 1.5 | 15 | QFN |
How to Select the Right UMS LNA
When choosing an RF LNA, consider the following parameters:
1. Noise Figure (NF)
Lower NF improves receiver sensitivity.
Target: < 2 dB for high-performance systems
2. Gain
Typical range: 15 dB – 30 dB
Ensure sufficient amplification without distortion.
3. Frequency Coverage
Select an LNA that fully covers your operating band with margin.
4. Output Power (P1dB)
Higher P1dB ensures better linearity and dynamic range.
5. Package Type
Die: for custom RF modules
QFN: for compact PCB integration
Hermetic: for high-reliability environments
Typical Applications
UMS LNA amplifiers are widely used in:
·5G base stations (Sub-6GHz & mmWave)
· Automotive radar (24GHz / 77GHz)
·Satellite communication systems
· RF testing & measurement
· Defense and electronic warfare
Why Choose UMS RF Amplifiers?
Advanced GaAs & pHEMT technology
Wide frequency coverage (up to mmWave)
Proven reliability in harsh environments
Optimized for high-frequency RF performance
CORE is authorized to distribute UMS microwaves. We offer high-quality stock of certain models of UMS products. Welcome to inquire.
