Low Noise Amplifier MI058, 1–18 GHz
30 dB gain, 4.0 dB noise figure, 1–18 GHz
Overview
When a signal at the end of a long test chain has dropped close to the analyser noise floor, an LNA placed early recovers the measurement margin. The gain figure matters less than where the amplifier sits: ahead of the lossy element, the noise figure dominates; behind it, the gain only amplifies noise that is already there.
MI058 covers 1–18 GHz with 30 dB gain, ±2.0 dB gain flatness, a 4.0 dB noise figure, and a 15 dBm output P1dB, measured at +25 °C at sea level. Reverse isolation is 40 dB and input/output VSWR is 2.0:1.
One documentation point worth flagging: the customer specification lists the part as APLNA4-1-18GC1, while the website refers to it as MI058. Confirm the correspondence in the quotation or technical agreement before ordering, so the delivered part and the datasheet match.
Maximum input is 5 dBm, supply is +12 V at 100–150 mA, and the nickel-plated aluminium housing measures approximately 24 × 24 × 10 mm.
Specifications
Features
- 30 dB gain across the full 1–18 GHz band in one unit
- 4.0 dB noise figure preserves measurement margin in low-level tests
- 40 dB reverse isolation protects the source from reflected power
- Compact 24 × 24 × 10 mm body fits close to the probe
- SMA female input and output for direct chain integration
Typical applications
- Low-level signal measurement
- EMI and RSE test chains
- Receiver front-end characterisation
Discuss this configuration
Send the device details and the measurement you need to make. We will confirm which specifications are fixed and which need verification on your sample.
Contact engineering
