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Analog Devices Inc. 101827-HMC473MS8
- Part No.:
- 101827-HMC473MS8
- Manufacturer:
- Analog Devices Inc.
- Category:
- RF, RFID, Wireless Evaluation Boards
- Package:
- Datasheet:
-
101827-HMC473MS8.pdf
- Description:
- BOARD EVAL ATTENUATOR HMC473
- Quantity:
- Payment:
- Shipping:
Inventory:3,439
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Product details
Overview
101827-HMC473MS8 from Analog Devices (formerly Hittite Microwave) is a GaAs MMIC voltage-variable attenuator in an 8-lead MSOP package, operating from 0.45 to 2.2 GHz with 0 to +3 Vdc control voltage, 48 dB max attenuation at 0.9 GHz, +15 dBm P1dB compression, and 50 Ω RF interface. It serves as a precision RF signal level controller in cellular infrastructure and GPS front-ends.
For engineers reviewing the 101827-HMC473MS8 datasheet, 101827-HMC473MS8 pinout, 101827-HMC473MS8 application, or 101827-HMC473MS8 equivalent, key selection criteria include frequency-dependent attenuation range (32–48 dB), control-voltage linearity behavior, thermal stability across –40°C to +85°C, and compatibility with 3.3 V supply and 50 Ω RF system design.
Technical Context
The 101827-HMC473MS8 implements a monolithic GaAs-based absorptive architecture with DC-coupled 50 Ω RF ports (pins 1 and 8), enabling broadband operation without external bias tees. Its attenuation is continuously adjustable via analog control voltage (pin 3), with no internal switching elements-ensuring smooth, glitch-free RF amplitude control.
It features fixed +3.3 Vdc supply (pin 6), grounded RF return paths (pins 2 and 7), and two no-connect terminals (pins 4 and 5) that may be tied to ground without performance impact. Absolute maximum ratings include +8 Vdc on Vdd and –0.2 to Vdd on Vctl, supporting robust handling in production environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Frequency Range | 0.45–2.2 GHz - supports multi-band wireless infrastructure including UMTS/3G, GPS L1, and LTE Band 1–3. |
| Max Attenuation | 48 dB @ 0.9 GHz - enables wide dynamic range for AGC loops and receiver sensitivity optimization. |
| P1dB Compression | +15 dBm @ 0.9 GHz - maintains linear operation under moderate RF input power without distortion. |
| Insertion Loss (Min Atten) | 2.2 dB @ 0.8–1.0 GHz - low baseline loss preserves system noise figure and gain budget. |
| Control Voltage Range | 0 to +3 Vdc - compatible with standard CMOS/LVCMOS DAC outputs and op-amp driver circuits. |
| Supply Voltage | +3.3 Vdc ±0.1 V - matches common RF subsystem power rails; draws only 10 μA quiescent current. |
| Operating Temp | –40°C to +85°C - qualified for outdoor base station and portable wireless equipment deployment. |
Pinout & Package
Package: 8-lead MSOP (Mini Small Outline Package), 3.0 mm × 3.0 mm × 1.1 mm body, Sn/Pb lead finish, MSL1, marked "H473".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8 | RF1, RF2 | DC-coupled 50 Ω RF I/O ports; require external DC blocking capacitors (e.g., 330 pF) per evaluation board design. |
| 2, 7 | GND | RF ground connections; must be soldered directly to PCB ground plane for impedance integrity and thermal dissipation. |
| 3 | Vctl | Analog control voltage input (0–3 Vdc); determines attenuation level; high-impedance (1 μA max) interface. |
| 4, 5 | N/C | No internal connection; may be grounded or left floating without affecting RF performance or linearity. |
| 6 | Vdd | +3.3 Vdc supply input; decoupling capacitor recommended near pin for RF stability. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small MSOP8 footprint | Enables dense RF module layouts; replaces larger SOIC or QFN attenuators without redesigning board area. |
| Absorptive topology | Eliminates reflected RF energy during attenuation changes-critical for stable PA output matching and VSWR-sensitive systems. |
| High IP3 (+47 dBm min) | Supports clean two-tone operation in crowded spectrum environments like cellular base stations without intermodulation distortion. |
| Temperature-stable attenuation | Exhibits <±0.5 dB drift over –40°C to +85°C at mid-control voltage-reduces need for closed-loop calibration in fielded units. |
| ESD-hardened (HBM Class 1A) | Withstands ≥250 V HBM-enables safe handling during manual assembly and rework without special ESD protocols beyond standard practice. |
Applications
| Cellular Infrastructure | GPS Receiver Front-End |
|---|---|
|
Use Scenario: Dynamic gain control in macrocell BTS transceiver chains to maintain constant output power across varying modulation schemes and channel loading. IC Role / Device Role / Timing Role: Voltage-variable RF attenuator placed between driver amplifier and power amplifier to implement closed-loop transmit power control. Use Value: Delivers 43 dB attenuation range at 0.8–1.0 GHz with ≤2.3 dB insertion loss, preserving EVM and ACLR while enabling precise +15 dBm P1dB headroom. |
Use Scenario: Adjustable signal conditioning in GPS L1-band (1.575 GHz) receiver paths to prevent ADC saturation under variable antenna gain or multipath conditions. IC Role / Device Role / Timing Role: Programmable RF attenuator inserted post-LNA and pre-mixer to maintain optimal SNR across diverse signal strength environments. Use Value: Provides 37 dB attenuation range at 1.0–1.6 GHz with >11 dB return loss, ensuring minimal mismatch-induced noise figure degradation. |
| Portable Wireless Test Equipment | UMTS/3G Handset Reference Design |
|
Use Scenario: Calibrated RF signal attenuation stage in handheld spectrum analyzers and vector signal generators requiring repeatable, temperature-stable amplitude control. IC Role / Device Role / Timing Role: Precision analog-controlled attenuator used in instrument's signal path to support 0.1 dB resolution and <±0.3 dB repeatability over temperature. Use Value: Achieves 48 dB max attenuation at 0.9 GHz with <1.5 µs switching time, enabling fast sweep-based measurement modes without settling delay penalties. |
Use Scenario: Transmit chain attenuation in 3G mobile handset reference designs to meet TRP/TRS regulatory requirements across multiple bands and power levels. IC Role / Device Role / Timing Role: Low-power, single-supply voltage-variable attenuator integrated into PA output matching network for adaptive power back-off. Use Value: Operates from +3.3 V with only 10 µA supply current and supports 0–3 V control from baseband processor GPIO, minimizing system power overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage-variable attenuator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HMC473MS8E | RoHS-compliant variant with matte tin lead finish and 260 °C peak reflow rating; identical electrical specs and pinout. | Required for lead-free manufacturing; same RF performance but different thermal profile during reflow. | Select HMC473MS8E when RoHS compliance and Pb-free assembly are mandatory; otherwise HMC473MS8 remains valid for Sn/Pb processes. |
| HMC173MS8 | Legacy predecessor with lower max attenuation (35 dB @ 0.9 GHz), higher insertion loss (3.0 dB), and narrower bandwidth (0.1–1.0 GHz). | Suitable only for legacy 1G/2G infrastructure upgrades where full 2.2 GHz coverage is not required. | Choose HMC173MS8 only for backward-compatible replacements in existing designs; not recommended for new 3G/GPS/4G deployments. |
Compared with HMC473MS8E and HMC173MS8, the 101827-HMC473MS8 delivers superior broadband attenuation (up to 48 dB through 1.6 GHz), lower insertion loss, and extended frequency coverage-making it the preferred choice for new wireless infrastructure and GNSS designs requiring high linearity and thermal stability.
Availability
101827-HMC473MS8 is available at Aetrix Electronics and suitable for cellular infrastructure, GPS receiver modules, and portable RF test equipment requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for 101827-HMC473MS8 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. (acquired Hittite Microwave in 2014) is a global leader in high-performance analog, mixed-signal, and RF ICs for communications, industrial, and aerospace applications.
The HMC473MS8 belongs to Analog Devices' GaAs MMIC voltage-variable attenuator product line, engineered for high-linearity, broadband RF signal conditioning in wireless infrastructure and precision instrumentation.
FAQ
What is the operating frequency range of the 101827-HMC473MS8?
The 101827-HMC473MS8 operates from 0.45 GHz to 2.2 GHz. Within this band, it delivers up to 48 dB attenuation at 0.9 GHz, 37 dB at 1.0–1.6 GHz, and 29–32 dB from 1.7–2.2 GHz. Performance is specified across –40°C to +85°C ambient temperature with +3.3 Vdc supply and 0–3 Vdc control voltage.
Does the 101827-HMC473MS8 require external DC blocking capacitors?
Yes, the 101827-HMC473MS8 has DC-coupled RF ports (pins 1 and 8), so external DC blocking capacitors are mandatory. The evaluation board uses 330 pF 0402 capacitors; values between 100 pF and 1 nF are typical depending on low-frequency cutoff requirements. No internal blocking is provided.
Can pins 4 and 5 of the 101827-HMC473MS8 be left unconnected?
Yes, pins 4 and 5 are explicitly designated as no-connect (N/C) in the official pin description. They have no internal connection and may be left floating or tied to RF ground without affecting RF performance, linearity, or thermal behavior of the 101827-HMC473MS8.
What is the maximum input power the 101827-HMC473MS8 can handle before compression?
The 101827-HMC473MS8 has a P1dB compression point of +15 dBm at 0.9 GHz under minimum attenuation. At higher attenuation states (>2 dB), P1dB drops to +5.5 dBm. Absolute maximum input power is +29 dBm (min attenuation) and +21 dBm (attenuation >2 dB) with +3.3 Vdc supply-exceeding these risks permanent damage.
Is the 101827-HMC473MS8 pin-compatible with the HMC473MS8E?
Yes, the 101827-HMC473MS8 is mechanically and electrically pin-compatible with the HMC473MS8E. Both share identical MSOP8 footprint, pin functions, electrical specifications, and absolute maximum ratings-the only differences are RoHS compliance (matte Sn vs. Sn/Pb) and reflow temperature rating (260 °C vs. 235 °C).
101827-HMC473MS8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Packaging:
- Bag
- Product Status:
- Obsolete
- Type:
- Attenuator
- Frequency:
- 450MHz ~ 2.2GHz
- Contents:
- Board(s)
- Utilized IC / Part:
- HMC473MS8
101827-HMC473MS8 FAQ
1.How can I place an order for 101827-HMC473MS8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 101827-HMC473MS8 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 101827-HMC473MS8 reliable?
The price and inventory of 101827-HMC473MS8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 101827-HMC473MS8 is usually 5 days.
3.What payment methods are accepted for 101827-HMC473MS8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 101827-HMC473MS8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 101827-HMC473MS8?
101827-HMC473MS8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 101827-HMC473MS8 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 101827-HMC473MS8?
For technical support, including 101827-HMC473MS8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 101827-HMC473MS8 requirements.
6.How does Aetrix verify that 101827-HMC473MS8 is sourced from the original manufacturer or authorized distributors?
All 101827-HMC473MS8 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 101827-HMC473MS8 meets industry standards.
7.What is the process for return or replacement of 101827-HMC473MS8?
All 101827-HMC473MS8 units undergo pre-shipment inspection (PSI). If there is an issue with 101827-HMC473MS8, 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 101827-HMC473MS8 part is unused and in its original packaging.
Return procedure for 101827-HMC473MS8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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