Status: Discontinued | Data Sheet: pdf link image   | RoHS Compliance: Rohs Compliant
The SPF-5122Z is a high performance 50-4000 MHz pHEMT low noise MMIC amplifier. The on-chip active bias network provides stable current over temperature and process variations. The SPF-5122Z offers ultra-low noise figure and high linearity performance in a simple gain block configuration. A single 3V to 5V supply and minimal application circuit (4 capacitors and 1 inductor) allows for maximum flexibility with a low bill of materials cost. High P1dB and maximum RF input power specifications make it ideal for high dynamic range receivers. It is internally matched to 50 ohms.
Part Number:
Frequency Min:
0.05 GHz
Frequency Max:
4 GHz
23 dBm
19 dB
38 dBm
Supply Voltage \ Vd Min:
3 V
Supply Voltage \ Vd Max:
5 V
Quiescent Current \ Id:
90 mA
Noise Figure:
0.5 dB
QFN 2x2mm
Gain Flatness:
10 ±dB
Return Loss Input:
17 dB
Return Loss Output:
15 dB
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Product Specifications For SPF-5122Z Amplifier
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Replacement Part(s) Suggested

The part SPF-5122Z is discontinued, below is the suggested replacement part.

Part Number Manufacturer Description
QPL9057 Qorvo Amplifier, Low Noise, .6 to 4.2 GHz, 22.8 dB, 17 dBm, 8-Pin, 2x2 mm, DFN
QPL9547 Qorvo RF Amplifier, LNA, .1 to 6 GHz, 19.3 dB, 22.7 dBm, DFN, 2 x 2