HMC375LP3E Obsolete 1.7–2.2GHz Low Noise Amplifier | Stock & RFQ
Mfr. Part #: HMC375LP3E
Manufacturer: Analog Devices / Hittite Microwave
Product Type: GaAs pHEMT MMIC Low Noise Amplifier
Frequency Range: 1.7GHz to 2.2GHz
Gain: 17dB Typical
Noise Figure: 0.9dB Typical
Output IP3: Up to +34dBm
Supply Voltage: +5V
Supply Current: 136mA Typical
Package/Case: 16-Lead QFN, 3mm × 3mm with Exposed Pad
Lifecycle Status: Obsolete
Description: 1.7–2.2GHz high-dynamic-range GaAs pHEMT MMIC LNA for cellular and RF receiver applications
The HMC375LP3E is a high-dynamic-range low noise amplifier designed for RF receiver systems operating between 1.7GHz and 2.2GHz.
Its combination of low noise figure and high output third-order intercept makes it suitable for receiver front ends where both sensitivity and linearity are important.
Typical performance includes:
0.9dB noise figure
17dB gain
Up to +34dBm output IP3
Approximately 17.5–18.5dBm P1dB depending on operating frequency
+5V single supply
136mA typical current consumption
The output is internally matched to 50Ω, while only minimal external components are required for RF input matching, grounding and DC bias.
HMC375LP3E vs HMC382LP3E: Obsolete 1.7–2.2GHz LNA Comparison
Key Specifications
| Parameter | HMC375LP3E |
| Frequency Range | 1.7–2.2GHz |
| Technology | GaAs pHEMT MMIC |
| Gain | 17dB Typical |
| Noise Figure | 0.9dB Typical |
| Output IP3 | Up to +34dBm |
| Output P1dB | Up to approx. 18.5dBm |
| Saturated Output Power | Approx. 19.5dBm |
| Supply Voltage | +5V |
| Supply Current | 136mA Typical |
| Output Impedance | 50Ω Matched |
| Operating Temperature | -40°C to +85°C |
| Package | 16-Lead QFN, 3mm × 3mm |
| Lifecycle | Obsolete |
Typical Applications
HMC375LP3E was designed primarily for cellular and wireless receiver applications such as:
GSM base stations
GPRS and EDGE infrastructure
CDMA systems
W-CDMA receivers
DECT systems
RF receiver front ends
Legacy wireless infrastructure
RF test and communication equipment
Its high IP3 performance is particularly useful in receiver environments with strong adjacent-channel or interfering RF signals.
HMC375LP3E Replacement
There is no universal pin-to-pin replacement that should automatically be substituted for HMC375LP3E.
The original HMC375 documentation mentions HMC618LP3(E) for applications requiring improved noise figure, but engineers should verify the current lifecycle status and electrical compatibility of any alternative before use.
A replacement should be selected according to:
Frequency coverage
Gain
Noise figure
OIP3
P1dB
Supply voltage
Current consumption
Input/output matching
Package dimensions
PCB footprint
For new RF designs, a currently supported Analog Devices LNA should generally be evaluated instead of another obsolete Hittite component.
FAQ
Is HMC375LP3E obsolete?
Yes. Analog Devices currently lists HMC375LP3E as Obsolete and includes it in PDN 20_0057.
What frequency range does HMC375LP3E cover?
It operates from 1.7GHz to 2.2GHz.
What is the gain of HMC375LP3E?
Typical gain is approximately 17dB, depending on operating frequency.
What is the noise figure?
The HMC375LP3E provides a typical noise figure as low as 0.9dB.
What is the output IP3?
Output IP3 is approximately +33dBm to +34dBm, depending on frequency and operating conditions.
What package does HMC375LP3E use?
It uses a compact 16-lead 3mm × 3mm QFN package with exposed pad.
Is there a direct replacement for HMC375LP3E?
There is no universal drop-in replacement. Frequency, gain, noise figure, linearity, bias and PCB footprint should all be checked when selecting an alternative.
Where can I request HMC375LP3E stock?
DataStorageIC supports RFQs for HMC375LP3E and other obsolete Hittite / Analog Devices RF components. Provide the full part number and quantity for stock and pricing confirmation.
