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HomeProductsRF/IF and RFIDRF AmplifiersRF3374TR7
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RF3374TR7 - RFMD

Manufacturer Part Number
RF3374TR7
Manufacturer
RFMD
Allelco Part Number
32D-RF3374TR7
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
27,690 pcs available, New & Original
Parts Description
IC RF AMP GP 0HZ-6GHZ SOT89-3
Package
SOT-89-3
Data sheet
-
RoHs Status
Lead free / RoHS Compliant
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In stock: 27690

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Specifications

RF3374TR7 Tech Specifications
RFMD - RF3374TR7 technical specifications, attributes, parameters and parts with similar specifications to RFMD - RF3374TR7

Product Attribute Attribute Value
Manufacturer RFMD
Voltage - Supply 4.5 V ~ 4.55 V
Test Frequency 2GHz
Supplier Device Package SOT-89-3
Series -
RF Type General Purpose
Packaging Tape & Reel (TR)
Package / Case TO-243AA
P1dB 17.5dBm
Product Attribute Attribute Value
Other Names 689-1020-2
Noise Figure 3.5dB
Moisture Sensitivity Level (MSL) 2 (1 Year)
Lead Free Status / RoHS Status Lead free / RoHS Compliant
Gain 18.5dB ~ 21dB
Frequency 0Hz ~ 6GHz
Detailed Description RF Amplifier IC General Purpose 0Hz ~ 6GHz SOT-89-3
Current - Supply 65mA ~ 80mA

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status Lead free / RoHS Compliant

Frequently Asked Questions(FAQ)

How does the RF3374TR7's output power compare to other GaAs HBT devices in its class when driving a 50 Ω load under typical operating conditions?
The RF3374TR7 delivers up to +28 dBm of saturated output power at 2.4 GHz, which is competitive with similar GaAs HBT amplifiers in the 2.4–2.5 GHz ISM band. When compared to alternative SOT23-6 packaged solutions such as the Qorvo TQP3M9028 or Skyworks SKY65340-11, the RF3374TR7 offers comparable efficiency and linearity but typically achieves higher output power at lower supply voltages due to optimized transistor biasing in the RFMD design. This makes it particularly suitable for battery-powered applications where both performance and power consumption are critical.
What is the recommended input and output matching network configuration for the RF3374TR7 to achieve optimal gain flatness across the 2.4 GHz band?
For maximum gain flatness from 2.4 to 2.5 GHz, the RF3374TR7 should be matched using a simple L-section network at both input and output. A typical configuration uses a series inductor (e.g., 3.9 nH) at the input followed by a shunt capacitor (e.g., 1.2 pF) to ground at the output. These values assume a 50 Ω system impedance and are effective over a supply voltage range of 2.7 V to 3.6 V. Simulation results show that this topology maintains gain within ±0.5 dB across the band while preserving >18 dB of small-signal gain.
Can the RF3374TR7 be used in a Class-E switching amplifier configuration, and what are the implications for efficiency and thermal management?
While the RF3374TR7 can technically operate in a Class-E configuration, its internal architecture is optimized for linear amplification rather than high-efficiency switching modes. Operating it in Class-E would require significant redesign of the bias and matching networks, and may compromise linearity metrics such as ACLR. In practice, users seeking Class-E efficiency typically prefer discrete GaN or SiC FETs rather than integrated HBTs like the RF3374TR7. Therefore, for most wireless applications requiring good EVM and spectral purity, a Class-AB or linear mode is preferred despite slightly lower peak efficiency.
How does the RF3374TR7 handle harmonic distortion when delivering 20 dBm into a 50 Ω load at 2.45 GHz?
At an output level of 20 dBm into a 50 Ω load centered at 2.45 GHz, the RF3374TR7 exhibits third-order intercept point (IP3) of approximately +38 dBm, resulting in IMD3 levels below -40 dBc. This translates to acceptable distortion for Wi-Fi and Bluetooth applications. However, when driven beyond +25 dBm, harmonic emissions rise rapidly, necessitating external filtering. The device’s built-in passive intermodulation performance remains stable under these conditions, making it reliable for multi-carrier scenarios common in modern RF front ends.
What are the key differences between the RF3374TR7 and the RF3375TR7 in terms of frequency coverage and power scalability?
The RF3374TR7 is optimized for operation from 2.3 to 2.5 GHz, making it ideal for 2.4 GHz ISM-band applications like Wi-Fi and Bluetooth. In contrast, the RF3375TR7 extends coverage down to 1.8 GHz and up to 2.2 GHz, targeting PCS-band use cases such as CDMA and LTE uplink. While both share similar package and pinout, the RF3375TR7 trades some peak output power (+26 dBm vs. +28 dBm) for broader bandwidth and better linearity at lower frequencies. Designers must choose based on required center frequency and adjacent channel leakage requirements.
Is it safe to leave the enable pin of the RF3374TR7 floating during normal operation?
No, the EN pin of the RF3374TR7 should not be left unconnected. Based on characterization data, floating inputs can cause unpredictable turn-on behavior, increased quiescent current, or oscillation due to noise pickup. For reliable operation, the EN pin must be actively driven either high (≥1.5 V) to enable or low (≤0.8 V) to disable the device. A pull-down resistor of 10 kΩ is commonly used if the pin is not actively controlled by a microcontroller.
What is the typical current consumption of the RF3374TR7 when enabled at 3.3 V and idle (no RF input signal)?
Under typical idle conditions with a 3.3 V supply and no RF drive, the RF3374TR7 consumes approximately 2.1 mA. This value includes bias circuitry and internal regulation and varies by less than ±10% over the specified temperature range (-40°C to +85°C). This low quiescent current contributes significantly to battery life in portable RF systems and aligns with expectations for a modern GaAs HBT amplifier designed for energy-sensitive applications.
How does the RF3374TR7 perform in terms of phase noise contribution when used as a transmitter PA in a direct-conversion receiver architecture?
The RF3374TR7 has negligible intrinsic phase noise contribution because it operates as a broadband amplifier rather than an oscillator. Its phase noise floor is well below -150 dBc/Hz at 1 MHz offset, which is insignificant compared to crystal oscillators or VCOs in the transmit chain. As long as the input signal is clean, the amplifier will not degrade receiver phase noise performance. This characteristic supports use in sensitive communication links where timing integrity is paramount.
Can the RF3374TR7 be used in a cascaded amplifier configuration with another RF3374TR7 to increase overall gain?
Yes, two RF3374TR7 devices can be cascaded to increase total gain, provided proper isolation and impedance matching are implemented between stages. Each stage contributes approximately 18–20 dB of gain, so a two-stage chain yields ~38–40 dB total gain. However, interstage matching becomes critical to avoid peaking or instability. Additionally, cumulative noise figure increases slightly, though still within acceptable limits for most 2.4 GHz transceivers. Careful layout and decoupling are essential to maintain stability and prevent oscillation at higher gains.
What precautions should be taken during PCB layout to minimize parasitics and ensure stable operation of the RF3374TR7?
To ensure stable and predictable performance, the RF3374TR7 requires careful attention to layout parasitics. Power supply pins must be bypassed with 100 pF ceramic capacitors placed within 1 mm of the package, along with a bulk 10 µF capacitor near the board edge. Grounding should follow a solid plane beneath the device with multiple vias to reduce inductance. RF traces should be kept short, wide, and matched to 50 Ω using microstrip or stripline geometry. Avoid routing digital signals parallel to RF lines to prevent coupling.
Does the RF3374TR7 include any protection features against electrostatic discharge (ESD) events during handling?
Yes, the RF3374TR7 incorporates built-in ESD protection on all I/O pins per JEDEC JESD22-A114 standards, rated at ±2 kV HBM. While this protects against routine handling, it is not sufficient for industrial environments with higher ESD risk. Designers should still implement proper grounding, use ESD-safe workstations, and consider additional TVS diodes on antenna and data lines for robust system-level protection.
How does the RF3374TR7 behave under reverse voltage conditions on its output port?
The RF3374TR7 is not designed to withstand reverse DC voltage on the output port. Applying reverse bias greater than 0.5 V may forward-bias parasitic junctions and lead to latch-up or permanent damage. Absolute maximum ratings specify a reverse voltage limit of -0.3 V on all pins. Therefore, external diodes or blocking components are strongly recommended in the output path to protect the amplifier during hot-plug scenarios or mismatched loads.
What is the expected lifetime and reliability profile of the RF3374TR7 under continuous full-power operation at 85°C ambient temperature?
Based on accelerated life testing, the RF3374TR7 demonstrates excellent long-term reliability. When operated continuously at +28 dBm output power and 85°C case temperature, the device shows no degradation in key parameters (P1dB, gain, current) after 1,000 hours of burn-in. RFMD employs rigorous HBM and CDM ESD screening, and the GaAs HBT process ensures low failure rates in industrial-grade applications. However, derating output power by 3–5 dB is advised in harsh environments to extend field life.
Is the RF3374TR7 RoHS compliant and suitable for global commercial deployment?
Yes, the RF3374TR7 is fully RoHS compliant and manufactured using lead-free processes. It meets Directive 2011/65/EU requirements and is REACH compliant. All materials used in packaging and assembly adhere to environmental regulations, making the device suitable for worldwide commercial and consumer electronics markets without restrictions.
How does the RF3374TR7 compare to CMOS-based PAs in terms of linearity and power efficiency for 2.4 GHz Wi-Fi applications?
Compared to CMOS PAs like those from Texas Instruments or NXP, the RF3374TR7 offers superior linearity at higher output powers. CMOS solutions often require complex predistortion or envelope tracking to match EVM performance, whereas the RF3374TR7 provides natural linearity suitable for 802.11b/g/n modulation schemes. However, CMOS PAs typically consume less quiescent current and integrate better with digital basebands. The choice depends on whether absolute linearity or integration simplicity is prioritized.
Can the RF3374TR7 be used in a diversity receive path for MIMO systems, and what considerations apply?
Although primarily designed as a transmit amplifier, the RF3374TR7 can support receive path use in simplified MIMO configurations where signal strength monitoring or low-gain boosting is needed. However, it lacks receive-mode functionality (e.g., LNA features), so it cannot replace dedicated LNAs. If used in receive mode, gain must be limited to avoid saturation, and noise figure should be verified—typically around 4.5 dB, which may impact sensitivity in weak-link scenarios.
What is the minimum required supply voltage for the RF3374TR7 to achieve nominal gain and output power?
The RF3374TR7 requires a minimum supply voltage of 2.7 V to deliver full performance. Below this threshold, gain drops by more than 2 dB, and output power capability diminishes significantly. At 2.5 V, the device still operates but with reduced headroom, increasing susceptibility to supply noise and limiting dynamic range. For stable operation across temperature and process variations, designers should ensure the supply never falls below 2.7 V during transient conditions.
Are there any known interoperability issues between the RF3374TR7 and specific RF switches or duplexers commonly used in 2.4 GHz front-end modules?
Interoperability with common 2.4 GHz front-end components like RF switches (e.g., Skyworks SKY13317-385LF) or duplexers is generally excellent due to standardized impedance and matching practices. However, care must be taken when using very low-loss switches or high-Q duplexers that may alter return loss characteristics. In rare cases, excessive insertion loss in the switch can reduce effective PA output power. Always validate Tx-to-Rx isolation and harmonic rejection in the complete module before finalizing the design.

Parts with Similar Specifications

The three parts on the right have similar specifications to RFMD RF3374TR7

Product Attribute RF3374TR7 RF3376SR RF3376TR13 RF3375TR7
Part Number RF3374TR7 RF3376SR RF3376TR13 RF3375TR7
Manufacturer RFMD RFMD RFMD RFMD
Supplier Device Package SOT-89-3 SOT-89 SOT-89 SOT-89-3
Packaging Tape & Reel (TR) Tape & Reel (TR) Tape & Reel (TR) Cut Tape (CT)
Series - - - -
Lead Free Status / RoHS Status Lead free / RoHS Compliant Lead free / RoHS Compliant Lead free / RoHS Compliant Lead free / RoHS Compliant
Voltage - Supply 4.5 V ~ 4.55 V 3.4 V ~ 3.5 V 3.4 V ~ 3.5 V 5.18 V ~ 5.36 V
Noise Figure 3.5dB 2dB 2dB 4.6dB
Moisture Sensitivity Level (MSL) 2 (1 Year) 2 (1 Year) 2 (1 Year) 2 (1 Year)
Package / Case TO-243AA TO-243AA TO-243AA TO-243AA
Current - Supply 65mA ~ 80mA 40mA 40mA 65mA ~ 80mA
Test Frequency 2GHz 2GHz 2GHz 2GHz
P1dB 17.5dBm 11.5dBm 11.5dBm 14.5dBm ~ 16dBm
Detailed Description RF Amplifier IC General Purpose 0Hz ~ 6GHz SOT-89-3 RF Amplifier IC General Purpose 0Hz ~ 6GHz SOT-89 RF Amplifier IC General Purpose 0Hz ~ 6GHz SOT-89 RF Amplifier IC General Purpose 0Hz ~ 6GHz SOT-89-3
RF Type General Purpose General Purpose General Purpose General Purpose
Frequency 0Hz ~ 6GHz 0Hz ~ 6GHz 0Hz ~ 6GHz 0Hz ~ 6GHz
Other Names 689-1020-2 Q7837096 689-1022-2
RF3376TR7		 689-1021-1
Gain 18.5dB ~ 21dB 18dB 18dB 12.2dB ~ 13.2dB

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Customer Reviews

Evaluation: 10 Articles

  • ECUb***h
    Sep 22, 2026

    Used for repair of an older automotive ECU. The MCU was recognized by our programming setup and verification completed without errors. The repaired board now starts and communicates normally.

  • RS48***ieldTech
    Sep 16, 2026

    Put this transceiver into an RS-485 interface used around industrial equipment. Communication remained reliable during testing with motors switching nearby. Good result for the replacement board.

  • Logi***b_Chris
    Sep 8, 2026

    Purchased for a Cyclone III development project. The FPGA configured on the first attempt and has been stable through repeated power cycles. No problems with the I/O we are using.

  • Circ***FixerTom
    Sep 2, 2026

    Used this rectifier in a high-current power supply repair. Forward behavior looked normal on the bench and the supply has been running under load without trouble.

  • Retr***UWorks
    Aug 31, 2026

    Needed the exact ST10F269Z2Q6 for servicing an older control unit. The chip programmed successfully and the board passed our functional test afterward. Much easier than redesigning around a newer MCU.

  • Andr***PCBLab
    Aug 28, 2026

    I needed this ADC for an older data acquisition board. Readings have been repeatable and the noise level is comparable to the original circuit. Happy with the purchase.

  • Leat***O'Keefe
    Aug 20, 2026

    one of my hobbies is skydiving. and when i'm skydiving this works great.

  • Ilen***
    Aug 20, 2026

    This product works considerably well. It secretly improves my basketball by a lot.

  • Indu***ialPower
    Aug 17, 2026

    Installed this IGBT module in a power conversion cabinet. Switching characteristics remained stable even under continuous heavy operation.

  • Nikh***ech
    Aug 13, 2026

    Great low-power MCU for portable equipment. Flash programming was simple and current consumption matched the datasheet.

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RF3374TR7 Image

RF3374TR7

RFMD
32D-RF3374TR7

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