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Analog Devices Inc. HMC387MS8
- Part No.:
- HMC387MS8
- Manufacturer:
- Analog Devices Inc.
- Category:
- RF Mixers
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
HMC387MS8.pdf
- Description:
- IC MMIC MIXER HI IP3 8-MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,078
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Product details
Overview
HMC387MS8 from Analog Devices (formerly Hittite Microwave) is a high-dynamic-range passive GaAs MMIC mixer in an 8-lead MSOP package, designed for RF-to-IF downconversion and upconversion in 450–500 MHz cellular and land-mobile radio systems. It delivers +32 dBm input IP3 at +17 dBm LO drive, 9.5 dB typical conversion loss, and +22 dBm input P1dB - enabling robust signal handling without DC bias or external active components.
For engineers reviewing the HMC387MS8 datasheet, HMC387MS8 pinout, HMC387MS8 application, or HMC387MS8 equivalent, key selection criteria include its 450–500 MHz RF bandwidth, DC–150 MHz IF range, ultra-small 14.8 mm² MSOP8 footprint, and compatibility with low-external-part-count front-end designs requiring high linearity and thermal stability from −40°C to +85°C.
Technical Context
The HMC387MS8 is a passive double-balanced mixer using GaAs Schottky diode-based topology, optimized for low-side LO injection and broadband RF operation. Its performance relies on precise external LO matching via L1/C1 network (e.g., 47 nH / 4 pF for 400 MHz), with RF and IF ports DC-coupled and LO AC-coupled through integrated impedance-matching design.
It operates across three frequency domains: RF (450–500 MHz), LO (300–500 MHz, optimized per application circuit), and IF (DC–150 MHz). Key isolation metrics include ≥20 dB LO-to-IF and ≥17 dB LO-to-RF, supporting clean signal translation in dense spectral environments such as GSM 450/480 and CDMA 450 base stations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RF Frequency Range | 450–500 MHz - supports full-band operation in GSM 450 & CDMA 450 infrastructure transceivers. |
| LO Frequency Range | 300–500 MHz - enables flexible low-side LO injection; optimal tuning requires external L1/C1 network. |
| IF Frequency Range | DC–150 MHz - accommodates baseband and low-IF architectures including 70 MHz and 137 MHz IF plans. |
| Input IP3 (Typ.) | +32 dBm at +17 dBm LO - provides high linearity for multi-carrier reception without intermodulation distortion. |
| Conversion Loss (Typ.) | 9.5 dB - defines signal attenuation from RF to IF path; impacts receiver noise figure and gain budget. |
| Input P1dB (Typ.) | +22 dBm - sets maximum undistorted RF input level before compression; critical for strong-signal immunity. |
| LO Drive Requirement | +13 to +19 dBm - allows use with low-power LO synthesizers while maintaining IP3 > +30 dBm. |
| Operating Temperature | −40°C to +85°C - ensures reliability in outdoor base station and mobile radio enclosures. |
Pinout & Package
Package: 8-lead MSOP (Mini Small Outline Package), 14.8 mm² body area, Sn/Pb lead finish, MSL1 rating, with all ground pins (3, 6, 7) requiring direct connection to PCB RF ground plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | LO | AC-coupled 50 Ω input; requires external series inductor (L1) and shunt capacitor (C1) for impedance matching. |
| 2, 4 | N/C | No internal connection; must remain unconnected and unstubbed on PCB. |
| 3, 6, 7 | GND | RF ground terminals; require low-inductance soldering to solid ground plane with multiple vias. |
| 5 | IF | DC-coupled output; supports DC–150 MHz IF; current-limited to ±40 mA to prevent damage. |
| 8 | RF | DC-coupled 50 Ω input; matched across 450–500 MHz without external matching components. |
Key Features
| Feature | Design Value |
|---|---|
| No DC bias required | Enables zero-quiescent-power operation, eliminating bias networks and reducing BOM count and thermal load. |
| +32 dBm input IP3 | Outperforms many active FET mixers in linearity while occupying only 14.8 mm² - ideal for space-constrained RF modules. |
| DC–150 MHz IF bandwidth | Supports both zero-IF and low-IF receiver architectures, including 70 MHz, 97 MHz, 117 MHz, and 137 MHz IF plans. |
| High LO-to-RF/IF isolation | ≥17 dB LO-to-RF and ≥20 dB LO-to-IF minimize LO leakage into signal paths, easing filter requirements in transceiver front ends. |
| Robust thermal rating | Rated for −40°C to +85°C operation with 175 °C/W thermal resistance - suitable for uncooled outdoor wireless equipment. |
Applications
| GSM 450 Base Station Receiver | CDMA 450 Mobile Radio Transmitter |
|---|---|
Use Scenario: Downconverting 450–457.5 MHz GSM uplink signals to 70 MHz IF in macrocell BTS receivers. IC Role / Device Role / Timing Role: Passive RF mixer providing high-linearity signal translation with minimal added noise. Use Value: +32 dBm IP3 prevents intermodulation from adjacent channel interference in multi-carrier deployments. |
Use Scenario: Upconverting 70 MHz IF to 450–460 MHz transmit band in portable land-mobile radios. IC Role / Device Role / Timing Role: Passive mixer used in transmit signal chain with low-side LO injection. Use Value: +22 dBm P1dB handles high-power IF driver outputs without compression, preserving modulation fidelity. |
| Private Land Mobile Radio (PLMR) Duplexer | GSM 480 Repeater Front End |
Use Scenario: Simultaneous receive and transmit path isolation in half-duplex PLMR repeaters operating at 450–470 MHz. IC Role / Device Role / Timing Role: Dual-role mixer supporting both RX downconversion and TX upconversion. Use Value: ≥20 dB LO-to-IF isolation reduces LO feedthrough into sensitive receive paths, improving dynamic range. |
Use Scenario: Signal amplification and frequency translation in bi-directional GSM 480 band repeaters deployed in rural coverage zones. IC Role / Device Role / Timing Role: High-IP3 passive mixer in low-noise receive path and clean transmit path. Use Value: Ultra-small MSOP8 footprint enables compact dual-path layout with minimal board area and no DC power routing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar passive mixer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HMC387MS8E | RoHS-compliant variant with 100% matte Sn lead finish and 260°C peak reflow rating; identical electrical specs. | Required for lead-free manufacturing; same RF performance and pinout as HMC387MS8. | Select HMC387MS8E for new RoHS-compliant designs; HMC387MS8 remains valid for Sn/Pb assembly. |
| Qorvo QM11036 | Wider RF range (400–600 MHz), slightly higher conversion loss (10.5 dB typ.), +30 dBm IP3 at +17 dBm LO. | Better suited for 500–600 MHz LTE bands; less optimal for strict 450–500 MHz GSM/CDMA alignment. | Choose QM11036 only if broader RF coverage or RoHS-only sourcing is mandatory; otherwise HMC387MS8 offers superior IP3 in target band. |
Compared with HMC387MS8E and QM11036, the HMC387MS8 delivers best-in-class +32 dBm IP3 specifically within 450–500 MHz, lower conversion loss, and proven integration in legacy GSM/CDMA infrastructure - making it the preferred choice where band-specific linearity and thermal stability are critical.
Availability
HMC387MS8 is available at Aetrix Electronics and suitable for GSM 450 base station receivers, CDMA 450 mobile radio transmitters, and private land mobile radio repeaters requiring stable component supply and long-term obsolescence management.
Supply support for HMC387MS8 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, Inc. (including former Hittite Microwave assets) is a global leader in high-performance analog, RF, and mixed-signal semiconductors, serving communications, defense, and instrumentation markets.
The HMC387MS8 belongs to the Hittite high-IP3 GaAs MMIC mixer product line, engineered for cellular infrastructure and land-mobile radio systems demanding exceptional linearity, small size, and DC-free operation.
FAQ
What is the recommended LO drive level for optimal performance of the HMC387MS8?
The HMC387MS8 achieves its best input IP3 (+32 dBm) at +17 dBm LO drive, but maintains +30 dBm IP3 even at +13 dBm LO. The specified LO range is +13 to +19 dBm; exceeding +19 dBm risks degradation. For the HMC387MS8, consistent LO drive within this window ensures stable conversion loss and isolation across temperature and frequency.
Does the HMC387MS8 require external DC biasing or active components to operate?
No - the HMC387MS8 is a passive GaAs MMIC mixer and requires no DC bias voltage or current. It operates solely on RF, LO, and IF signal energy. External components (L1 and C1) are needed only for LO port matching; RF and IF ports are DC-coupled and do not require bias tees or blocking capacitors unless DC blocking is intentionally desired for IF.
Can the HMC387MS8 be used for both upconversion and downconversion?
Yes - the HMC387MS8 supports both upconversion and downconversion. In downconversion mode (e.g., RF = 450 MHz, LO = 380 MHz → IF = 70 MHz), input IP3 is +32 dBm. In upconversion (e.g., IF = 70 MHz, LO = 380 MHz → RF = 450 MHz), input IP3 is +29 dBm. Both modes are validated in the datasheet and supported by the same pin configuration and external matching network.
What is the maximum allowable IF current for the HMC387MS8?
The HMC387MS8 IF pin (Pin 5) must not sink or source more than ±40 mA of DC current. Exceeding this limit may cause permanent damage. This constraint applies only when operating to DC; for AC-coupled IF paths, a series capacitor eliminates DC current flow and removes this limitation entirely. Always verify IF stage DC conditions in the final schematic.
Is the HMC387MS8 still in active production or marked obsolete?
The HMC387MS8 is marked OBSOLETE in official documentation, but remains available through authorized distributors and Aetrix Electronics with full traceability and lifecycle support. Obsolescence status reflects end-of-life planning by Analog Devices; functional replacements like HMC387MS8E exist, but the HMC387MS8 continues to be stocked for legacy system maintenance and long-cycle industrial programs.
HMC387MS8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Strip
- Product Status:
- Obsolete
- RF Type:
- CDMA, GSM
- Frequency:
- 450MHz ~ 500MHz
- Number of Mixers:
- 1
- Gain:
- -
- Noise Figure:
- 9.5dB
- Secondary Attributes:
- -
- Current - Supply:
- -
- Voltage - Supply:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP
HMC387MS8 FAQ
1.How can I place an order for HMC387MS8 through Aetrix?
Please submit a Request for Quotation (RFQ) for HMC387MS8 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 HMC387MS8 reliable?
The price and inventory of HMC387MS8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HMC387MS8 is usually 5 days.
3.What payment methods are accepted for HMC387MS8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HMC387MS8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HMC387MS8?
HMC387MS8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HMC387MS8 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 HMC387MS8?
For technical support, including HMC387MS8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HMC387MS8 requirements.
6.How does Aetrix verify that HMC387MS8 is sourced from the original manufacturer or authorized distributors?
All HMC387MS8 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 HMC387MS8 meets industry standards.
7.What is the process for return or replacement of HMC387MS8?
All HMC387MS8 units undergo pre-shipment inspection (PSI). If there is an issue with HMC387MS8, 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 HMC387MS8 part is unused and in its original packaging.
Return procedure for HMC387MS8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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