Analog Devices Inc. HMC551LP4ETR
- Part No.:
- HMC551LP4ETR
- Manufacturer:
- Analog Devices Inc.
- Category:
- RF Mixers
- Package:
- 24-VFQFN Exposed Pad
- Datasheet:
-
HMC551LP4ETR.pdf
- Description:
- IC MIXER DBL-BAL HI IP3 24-QFN
- Quantity:
- Payment:

- Shipping:

Inventory:2,127
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Product details
Overview
HMC551LP4ETR from Analog Devices (formerly Hittite Microwave) is a GaAs MMIC double-balanced mixer with integrated LO amplifier, operating from 0.8–1.2 GHz RF/LO and DC–300 MHz IF. It delivers +27 dBm input IP3, 8 dB typical conversion loss, 27 dB LO-to-RF isolation, and operates from a single +5 V supply drawing 62 mA - ideal for cellular base station up/downconverters.
For engineers reviewing the HMC551LP4ETR datasheet, HMC551LP4ETR pinout, HMC551LP4ETR application, or HMC551LP4ETR equivalent, key selection criteria include its integrated LO amplifier enabling low-LO-drive operation (-4 to +4 dBm), no external balun requirement, and 4×4 mm QFN package compatibility with HMC552LP4(E) for frequency-band scalability.
Technical Context
The HMC551LP4ETR implements a double-balanced Gilbert-cell mixer topology with monolithically integrated GaAs LO amplifier, enabling high linearity and wide IF bandwidth (DC–300 MHz) without external baluns. Its RF and LO ports are DC-coupled and 50 Ω matched, while the IF port supports DC coupling with current-limited operation (≤18 mA).
LO-to-RF isolation of 27 dB (typ) and LO drive range of –4 to +4 dBm allow flexible local oscillator interface design; the internal bias network requires only a single external 18 Ω resistor and three bypass capacitors for stable +5 V operation across –40°C to +85°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RF/LO Frequency Range | 0.8–1.2 GHz - defines usable band for cellular infrastructure transceivers (GSM, W-CDMA) |
| IF Frequency Range | DC–300 MHz - supports zero-IF and low-IF architectures without external AC coupling |
| Input IP3 | +27 dBm - enables high dynamic range in crowded spectral environments like base stations |
| Conversion Loss | 8 dB (typ) - sets minimum gain budget required in cascade with LNAs or drivers |
| LO-to-RF Isolation | 27 dB (typ) - reduces LO leakage into antenna path, easing filter requirements |
| Supply | +5 V @ 62 mA - single-rail operation simplifies power delivery vs. dual-supply mixers |
| Package | 24-lead 4×4 mm QFN - surface-mount compatible with standard reflow profiles (MSL1) |
Pinout & Package
24-lead 4×4 mm QFN package with exposed ground paddle; RoHS-compliant matte tin finish; MSL1 rating; max reflow peak temperature 260 °C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | MIX LO | DC-coupled LO input to mixer core; requires external DC blocking capacitor |
| 3 | BIAS | LO amplifier bias node; requires external 18 Ω resistor and three bypass capacitors |
| 4 | GND | Ground reference; must be connected to PCB ground plane and exposed paddle |
| 5 | LO | DC-coupled LO amplifier output; 50 Ω matched; requires external DC blocking capacitor |
| 10 | IF | DC-coupled IF output; supports DC–300 MHz; limited to ≤18 mA sink/source |
| 18 | RF | DC-coupled RF input; 50 Ω matched; requires external DC blocking capacitor |
| 2,6–9,11–17,19–24 | N/C | No-connect pins; may be tied to RF ground without performance impact |
Key Features
| Feature | Design Value |
|---|---|
| Integrated LO amplifier | Enables –4 to +4 dBm LO drive, eliminating need for external LO buffer stages |
| Double-balanced architecture | Provides inherent suppression of LO×RF harmonics and even-order distortion products |
| No external baluns required | Reduces BOM count and layout area; simplifies impedance matching at RF/LO ports |
| DC-coupled IF port | Supports zero-IF receiver designs and eliminates IF coupling capacitor sizing uncertainty |
| High LO-to-RF isolation | 27 dB minimizes LO radiation into antenna path, easing EMC compliance in base stations |
Applications
| Cellular Base Station Transceiver | GSM/W-CDMA Infrastructure |
|---|---|
Use Scenario: Downconversion of 900 MHz or 1900 MHz RF signals to baseband or low-IF in macrocell BTS. IC Role / Device Role / Timing Role: Double-balanced mixer with integrated LO amplifier performing RF-to-IF translation. Use Value: +27 dBm IP3 and 8 dB conversion loss maintain SNR in high-interference multi-carrier environments. | Use Scenario: Upconversion of baseband I/Q signals to 850/900/1900/2100 MHz bands in distributed antenna systems. IC Role / Device Role / Timing Role: Active mixer providing LO amplification and balanced mixing in transmit chain. Use Value: 27 dB LO-to-RF isolation prevents LO leakage from degrading adjacent channel power ratio (ACPR). |
| PLMR Radio Front-End | ISM Band Transceiver |
Use Scenario: Frequency translation in public safety land-mobile radios operating at 700–800 MHz. IC Role / Device Role / Timing Role: High-linearity mixer enabling simultaneous reception of multiple narrowband channels. Use Value: DC–300 MHz IF bandwidth supports wide instantaneous bandwidth for digital modulation schemes. | Use Scenario: 902–928 MHz ISM band transceiver in industrial telemetry and wireless sensor networks. IC Role / Device Role / Timing Role: Compact SMT mixer handling both upconversion and downconversion in half-duplex links. Use Value: Single +5 V supply and 4×4 mm QFN footprint enable space-constrained embedded RF module integration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar mixer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HMC552LP4ETR | Same pinout and architecture but 1.6–3.0 GHz RF/LO range; identical 4×4 mm QFN package | Targets PCS, UMTS, and WiMAX bands instead of GSM/CDMA lower bands | Select when operating above 1.6 GHz; drop-in replacement with no layout change |
| ADL5801ACPZ-R7 | SiGe passive mixer; 700–2700 MHz RF; no integrated LO amp; requires +5 V LO drive ≥0 dBm | Lacks on-chip LO amplification; higher LO drive demand increases system complexity | Choose for wider RF bandwidth and lower power consumption where external LO buffering is acceptable |
Compared with HMC551LP4ETR, HMC552LP4ETR offers seamless frequency-band migration within the same PCB layout, while ADL5801ACPZ-R7 trades integrated LO gain for broader RF coverage and lower DC power - critical for battery-powered ISM modules.
Availability
HMC551LP4ETR is available at Aetrix Electronics and suitable for cellular infrastructure, PLMR radio, and ISM band transceiver designs requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for HMC551LP4ETR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices acquired Hittite Microwave in 2014 and integrates its high-frequency RF IC portfolio into precision RF signal chain solutions.
The HMC series targets high-performance wireless infrastructure, delivering GaAs MMIC mixers, amplifiers, and synthesizers optimized for linearity, noise, and power efficiency in base station and microwave backhaul applications.
FAQ
What is the operating temperature range for the HMC551LP4ETR?
The HMC551LP4ETR is specified for continuous operation from –40°C to +85°C ambient temperature. Junction temperature must not exceed 150°C, and thermal resistance from junction to ground paddle is 105.6°C/W. Derating begins above 85°C at 9.5 mW/°C. This range supports deployment in outdoor base station enclosures and industrial RF equipment.
Does the HMC551LP4ETR require external baluns?
No, the HMC551LP4ETR does not require external baluns. Its double-balanced GaAs MMIC architecture provides inherent common-mode rejection and 50 Ω single-ended RF, LO, and IF ports. The datasheet explicitly states "no external baluns required," enabling simplified layout and reduced component count in RF front-end designs.
What is the maximum LO drive level the HMC551LP4ETR can accept?
The HMC551LP4ETR accepts a typical LO drive level of –4 to +4 dBm at its LO pin (Pin 5), with an absolute maximum rating of +10 dBm. Exceeding +10 dBm risks permanent damage. The integrated LO amplifier allows reliable operation at low drive levels, reducing dependency on high-power LO sources in compact transceivers.
Can the HMC551LP4ETR be used for zero-IF applications?
Yes, the HMC551LP4ETR supports zero-IF applications via its DC-coupled IF port (Pin 10). It operates from DC to 300 MHz, and the datasheet confirms suitability for direct-conversion architectures. However, IF current must remain ≤18 mA to prevent die malfunction - a key constraint for baseband interface design.
Is the HMC551LP4ETR pin-compatible with any other Hittite/Analog Devices mixers?
Yes, the HMC551LP4ETR is pin-for-pin compatible with the HMC552LP4ETR, which covers 1.6–3.0 GHz. Both share identical 24-lead 4×4 mm QFN packaging, pin functions, and biasing requirements. This enables hardware reuse across frequency bands - for example, using the same PCB for 900 MHz and 2.1 GHz variants in multi-band base station development.
HMC551LP4ETR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 24-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- RF Type:
- Cellular, 3G, GSM
- Frequency:
- 800MHz ~ 1.2GHz
- Number of Mixers:
- 1
- Gain:
- -
- Noise Figure:
- 8dB
- Secondary Attributes:
- Up/Down Converter
- Current - Supply:
- 62mA
- Voltage - Supply:
- 5V
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-QFN (4x4)
HMC551LP4ETR FAQ
1.How can I place an order for HMC551LP4ETR through Aetrix?
Please submit a Request for Quotation (RFQ) for HMC551LP4ETR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for HMC551LP4ETR reliable?
The price and inventory of HMC551LP4ETR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HMC551LP4ETR is usually 5 days.
3.What payment methods are accepted for HMC551LP4ETR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HMC551LP4ETR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HMC551LP4ETR?
HMC551LP4ETR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HMC551LP4ETR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for HMC551LP4ETR?
For technical support, including HMC551LP4ETR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HMC551LP4ETR requirements.
6.How does Aetrix verify that HMC551LP4ETR is sourced from the original manufacturer or authorized distributors?
All HMC551LP4ETR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that HMC551LP4ETR meets industry standards.
7.What is the process for return or replacement of HMC551LP4ETR?
All HMC551LP4ETR units undergo pre-shipment inspection (PSI). If there is an issue with HMC551LP4ETR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The HMC551LP4ETR part is unused and in its original packaging.
Return procedure for HMC551LP4ETR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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