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Analog Devices Inc. 121492-HMC602LP4
- Part No.:
- 121492-HMC602LP4
- Manufacturer:
- Analog Devices Inc.
- Category:
- RF, RFID, Wireless Evaluation Boards
- Package:
- Datasheet:
-
121492-HMC602LP4.pdf
- Description:
- HMC602LP4 EVAL PCB
- Quantity:
- Payment:
- Shipping:
Inventory:3,607
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Product details
Overview
The 121492-HMC602LP4 from Analog Devices (originally Hittite Microwave) is a logarithmic RF detector/controller IC designed for precision power measurement and closed-loop control in high-frequency signal chains. It delivers ±1 dB accuracy over 60 dB dynamic range up to 6 GHz, features -25 mV/dB nominal output slope, 18 dBm intercept at lower frequencies (23 dBm above 5.8 GHz), and operates from a single +5 V supply with 113 mA quiescent current.
For engineers reviewing the 121492-HMC602LP4 datasheet, 121492-HMC602LP4 pinout, 121492-HMC602LP4 application, or 121492-HMC602LP4 equivalent, this device supports critical RF design tasks including RSSI generation, AGC/ALC feedback, wideband power monitoring, and temperature-compensated signal strength detection across cellular, WiMAX, radar, and broadband wireless systems.
Technical Context
The 121492-HMC602LP4 employs a successive compression architecture using cascaded amplifier stages that saturate progressively to approximate a precise logarithmic transfer function. Its RF input operates differentially (INP/INN) but supports single-ended configuration via AC-coupled INN to ground.
In detector mode, LOGOUT (Pin 15) is shorted to VSET (Pin 16), yielding a buffered DC voltage proportional to input RF power; in controller mode, an external voltage applied to VSET establishes a reference for automatic gain or attenuation control. The device integrates a buffered temperature sensor (TEMP, Pin 2) and supports fast 10 ns output response with 700 kHz open-loop corner frequency.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Frequency Range | 1 MHz to 8 GHz - enables use across IF, cellular, WiMAX, WLAN, and radar bands without re-design. |
| ±1 dB Dynamic Range | 63 dB at 2.2 GHz - ensures accurate power measurement across multi-decade signal levels in receiver front-ends. |
| Output Slope | -25 mV/dB (typ. at 900 MHz) - provides stable, predictable voltage-per-dB scaling for analog power readout and control loops. |
| Output Intercept | 18.2 dBm (typ. at 50 MHz); 24.4 dBm (typ. at 5.8 GHz) - defines zero-power reference point for absolute power calibration. |
| Supply Voltage | +4.5 V to +5.5 V - compatible with standard 5 V rail; supports operation under ±10% tolerance without regulation. |
| Power-Down Current | 1 mA (EN < 0.2 × Vcc) - reduces system standby power while preserving fast wake-up capability. |
| Operating Temperature | -40 °C to +85 °C - qualified for industrial and outdoor wireless infrastructure environments. |
Pinout & Package
121492-HMC602LP4 is housed in a compact 4 mm × 4 mm leadless surface-mount package (LP4) with exposed thermal paddle requiring soldering to PCB RF/DC ground per manufacturer guidelines. Pin count: 24-terminal LFCSP.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 6, 7, 13, 17, 18 | N/C | No internal connection; must remain unconnected or grounded per layout best practices. |
| 2 | TEMP | Buffered analog voltage output proportional to die temperature - enables on-chip thermal compensation. |
| 3, 4 | INP / INN | Differential RF input; INN may be AC-coupled to ground for single-ended operation at 50 Ω impedance. |
| 5 | EN | Active-high enable; <1 V disables circuit and reduces supply current to 1 mA. |
| 8–12, 19, 20, 23, 24 | Vcc1–Vcc3 | Five dedicated +5 V bias supply pins - require local decoupling for RF stability and noise rejection. |
| 14 | CLPF | Capacitor connection for loop filter - sets output ripple suppression bandwidth in controller mode. |
| 15 | LOGOUT | Main logarithmic output; shorted to VSET in detector mode; drives external VGA/attenuator in controller mode. |
| 16 | VSET | Reference input for controller mode; externally set voltage determines target RF power level. |
| 21, 22 | N/C | No internal connection; must not be routed or connected. |
| Package Base | GND | Exposed thermal paddle - must be soldered to solid RF/DC ground plane for thermal dissipation and signal integrity. |
Key Features
| Feature | Design Value |
|---|---|
| 70 dB max dynamic range | Enables detection of weak signals (-70 dBm) alongside strong interferers (+0 dBm) in same channel without saturation. |
| ±1 dB linearity over 60 dB | Reduces need for digital correction in RSSI and closed-loop power control applications. |
| 10 ns output response time | Supports real-time envelope tracking and burst-mode power monitoring in TDMA/LTE systems. |
| Integrated temperature sensor | Provides on-die thermal data for drift compensation without external sensors or calibration routines. |
| Power-down mode | Reduces system idle power by >99% while retaining full functionality upon EN assertion. |
Applications
| Cellular Base Station RSSI | WiMAX/WiFi Transmitter Power Control |
|---|---|
Use Scenario: Real-time received signal strength indication in LTE/FDD/TDD macrocell and small-cell base station receivers. IC Role / Device Role / Timing Role: Logarithmic detector converting downconverted IF or RF signal power into calibrated DC voltage for ADC sampling and digital processing. Use Value: Delivers ±1 dB accuracy across -60 dBm to 0 dBm input range at 1.9 GHz, enabling precise uplink power allocation and interference management. |
Use Scenario: Closed-loop transmit power regulation in 2.4/5 GHz WiFi APs and WiMAX CPE units operating under regulatory EIRP limits. IC Role / Device Role / Timing Role: Controller mode interface where VSET sets target output power and LOGOUT drives VGA/attenuator feedback path. Use Value: Maintains ±0.5 dB transmit power stability over temperature (-40 °C to +85 °C) using integrated TEMP output for compensation. |
| Radar System Peak Power Monitor | Broadband Test Equipment Signal Leveling |
Use Scenario: Pulse-by-pulse peak power measurement in X-band (8–12 GHz) pulsed radar front-ends with fast rise-time requirements. IC Role / Device Role / Timing Role: High-speed logarithmic detector capturing RF envelope with 10 ns rise/fall time and 700 kHz loop bandwidth. Use Value: Supports accurate pulse power estimation across 50–8000 MHz without frequency-dependent recalibration due to flat log-slope response. |
Use Scenario: Automatic level control in RF signal generators, spectrum analyzers, and vector network analyzer receivers. IC Role / Device Role / Timing Role: Precision detector providing stable DC reference for analog AGC loops in wideband test instrumentation. Use Value: Achieves 66 dB ±3 dB dynamic range at 5.8 GHz and 56 dB at 8 GHz, enabling consistent amplitude response across full instrument bandwidth. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar logarithmic detector/controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADL5513ACPZ-R7 | Wider 100 MHz–4 GHz range; ±0.5 dB linearity over 55 dB; requires external temp compensation. | Lacks integrated temperature sensor and buffered TEMP output; less suitable for uncalibrated industrial deployments. | Preferred when higher linearity at mid-band is prioritized over temperature autonomy and ultra-wideband coverage. |
| HMC1093LP4E | Lower 1–6 GHz range; 65 dB ±1 dB dynamic range; no power-down mode; 15 mA supply current. | Higher quiescent power and no EN control; unsuitable for battery-powered or low-duty-cycle systems. | Select when cost sensitivity outweighs power efficiency needs and 8 GHz upper limit is unnecessary. |
Compared with ADL5513ACPZ-R7 and HMC1093LP4E, the 121492-HMC602LP4 uniquely combines 1–8 GHz coverage, integrated temperature sensing, power-down capability, and ±1 dB accuracy across 60+ dB - making it optimal for thermally demanding, wideband, and energy-conscious RF control architectures.
Availability
121492-HMC602LP4 is available at Aetrix Electronics and suitable for cellular infrastructure, WiMAX base stations, radar transceivers, and broadband test equipment requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for 121492-HMC602LP4 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. is a global leader in high-performance analog, mixed-signal, and RF semiconductor solutions, serving communications, industrial, automotive, and aerospace markets since 1965.
The 121492-HMC602LP4 belongs to Analog Devices' high-frequency logarithmic detector product line, engineered specifically for wideband RF power measurement and closed-loop control in next-generation wireless infrastructure and defense electronics.
FAQ
What is the primary function of the 121492-HMC602LP4?
The 121492-HMC602LP4 is a logarithmic RF detector/controller IC that converts input RF power into a proportional DC output voltage for measurement (detector mode) or establishes a feedback reference for automatic gain/power control (controller mode). It operates from 1 MHz to 8 GHz with up to 70 dB dynamic range and supports both configurations via simple pin strapping.
How does the 121492-HMC602LP4 achieve temperature stability?
The 121492-HMC602LP4 achieves temperature stability through an on-die temperature sensor (TEMP pin) delivering a buffered analog voltage proportional to junction temperature, combined with internal circuitry that compensates log-slope and intercept drift. Measured sensitivity is as low as ±14 mdB/°C at -10 dBm input across its full operating range.
Can the 121492-HMC602LP4 operate in both detector and controller modes simultaneously?
No - the 121492-HMC602LP4 operates exclusively in one mode at a time. Detector mode requires LOGOUT (Pin 15) shorted to VSET (Pin 16); controller mode requires those pins disconnected and VSET driven by an external reference voltage. Mode selection is hardware-configured and not dynamically switchable during operation.
What is the significance of the CLPF pin on the 121492-HMC602LP4?
The CLPF pin (Pin 14) on the 121492-HMC602LP4 connects an external capacitor to set the dominant pole in the controller's feedback loop, determining output ripple suppression bandwidth and loop stability. In controller mode, selecting the correct CLPF capacitor value (typically 1–10 nF) ensures robust AGC/ALC performance without oscillation or overshoot.
Is the 121492-HMC602LP4 RoHS-compliant?
Yes - the 121492-HMC602LP4 is available in both standard (HMC602LP4, Sn/Pb finish) and RoHS-compliant (HMC602LP4E, 100% matte Sn) variants. The part number suffix "E" denotes the lead-free version, which meets JEDEC J-STD-020 MSL1 rating with peak reflow temperature up to 260 °C.
121492-HMC602LP4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Log Detector/Controller
- Frequency:
- 1MHz ~ 8GHz
- Contents:
- Board(s)
- Utilized IC / Part:
- HMC602LP4
121492-HMC602LP4 FAQ
1.How can I place an order for 121492-HMC602LP4 through Aetrix?
Please submit a Request for Quotation (RFQ) for 121492-HMC602LP4 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 121492-HMC602LP4 reliable?
The price and inventory of 121492-HMC602LP4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 121492-HMC602LP4 is usually 5 days.
3.What payment methods are accepted for 121492-HMC602LP4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 121492-HMC602LP4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 121492-HMC602LP4?
121492-HMC602LP4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 121492-HMC602LP4 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 121492-HMC602LP4?
For technical support, including 121492-HMC602LP4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 121492-HMC602LP4 requirements.
6.How does Aetrix verify that 121492-HMC602LP4 is sourced from the original manufacturer or authorized distributors?
All 121492-HMC602LP4 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 121492-HMC602LP4 meets industry standards.
7.What is the process for return or replacement of 121492-HMC602LP4?
All 121492-HMC602LP4 units undergo pre-shipment inspection (PSI). If there is an issue with 121492-HMC602LP4, 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 121492-HMC602LP4 part is unused and in its original packaging.
Return procedure for 121492-HMC602LP4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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