Analog Devices Inc. 116960-HMC625ALP5
- Part No.:
- 116960-HMC625ALP5
- Manufacturer:
- Analog Devices Inc.
- Category:
- RF, RFID, Wireless Evaluation Boards
- Package:
- Datasheet:
-
116960-HMC625ALP5.pdf
- Description:
- BOARD EVALUATION HMC625ALP5
- Quantity:
- Payment:

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Product details
Overview
116960-HMC625ALP5 from Hittite Microwave Corporation is a GaAs MMIC 6-bit digital variable gain amplifier operating from DC to 6 GHz, delivering programmable gain from –13.5 dB to +18 dB in 0.5 dB steps, with ±0.25 dB typical gain step error and +33 dBm output IP3 - ideal for microwave radio, WiMAX/4G infrastructure, and test equipment RF signal chains.
For engineers reviewing the 116960-HMC625ALP5 datasheet, 116960-HMC625ALP5 pinout, 116960-HMC625ALP5 application, or 116960-HMC625ALP5 equivalent, key selection criteria include its TTL/CMOS-compatible dual-mode control (serial or latched parallel), single +5 V supply, 32-lead 5×5 mm QFN RoHS package, and no external matching requirement.
Technical Context
The 116960-HMC625ALP5 integrates a 6-bit digitally controlled attenuator/gain block with serial (SPI-compatible) and latched parallel interfaces, supporting user-selectable power-up states via PUP1/PUP2 pins and cascading via SEROUT. Its internal architecture enables stable gain accuracy across DC–6 GHz with minimal frequency-dependent deviation.
It features dual bias rails (Vdd = +5 V for logic/control, Vs = +5 V for RF output stage), integrated DC blocking on RF ports requiring external capacitors, and thermal design optimized for 119 °C/W junction-to-case resistance - enabling reliable operation from –40 °C to +85 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Frequency Range | DC to 6 GHz - supports broadband IF and RF signal conditioning without band switching. |
| Gain Control Range | –13.5 dB to +18 dB in 0.5 dB steps - provides fine-grained dynamic range adjustment for AGC loops. |
| Output IP3 | +33 dBm - enables high-linearity operation in multi-tone environments like base station transceivers. |
| Noise Figure | 6 dB at 900 MHz - maintains low added noise in receiver front-end applications. |
| Supply Current | 60–100 mA total (Idd + Is) - compatible with compact +5 V power domains in SMT systems. |
| Control Interface | TTL/CMOS-compatible serial (SERIN/CLK/LE) or 6-bit latched parallel (D0–D5) - simplifies integration with FPGA or microcontroller GPIOs. |
| Package | 32-lead 5×5 mm QFN, RoHS-compliant, exposed paddle - ensures thermal performance and RF grounding integrity. |
Pinout & Package
32-lead 5×5 mm leadless QFN package with exposed thermal paddle; requires soldering all ground leads and paddle directly to PCB RF ground per Hittite land pattern guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (AMPIN) | RF Input | DC-coupled input requiring external blocking capacitor; matched to 50 Ω system impedance. |
| 29 (AMPOUT) | RF Output / Vcc Bias | DC-biased RF output node supplying +5 V to output stage; requires external DC blocking capacitor. |
| 2,3,13,28,30–32 (GND) | RF/DC Ground | Multiple ground terminals plus exposed paddle - must be connected to solid RF ground plane for stability and EMI control. |
| 4,12 (ATTIN, ATTOUT) | Attenuator Interface | DC-coupled 50 Ω matched paths; require external blocking capacitors sized for lowest operating frequency. |
| 5–10 (ACG1–ACG6) | Bias Decoupling | Require external capacitors to ground (e.g., 100 pF) placed adjacent to pins for stable bias network operation. |
| 14 (SEROUT) | Serial Data Output | 6-clock-cycle delayed copy of SERIN - enables daisy-chaining multiple Hittite serial devices. |
| 15–16 (PUP2, PUP1) | Power-Up State Select | Determine default attenuation state at power-on when LE is low; support 8 predefined gain offsets. |
| 18–23 (D5–D0) | Parallel Control Inputs | 6-bit latchable digital inputs defining gain state; active when P/S = low and LE transitions high. |
| 24 (P/S) | Mode Select | High = serial mode; low = parallel mode - configures interface before power-up or during operation. |
| 25 (CLK) | Serial Clock | Positive-edge-triggered SPI clock; minimum period 100 ns; requires clean transitions to avoid metastability. |
| 26 (SERIN) | Serial Data In | MSB-first 6-bit word; masked when P/S = low or LE = low. |
| 27 (LE) | Latch Enable | High = load data (serial register → attenuator or parallel bus → attenuator); low = hold state constant. |
| 17 (Vdd) | Logic Supply | +5 V supply for digital control circuitry; decoupling required near pin. |
| 11 (N/C) | No Connect | Internally unconnected; externally tied to ground per measurement setup. |
Key Features
| Feature | Design Value |
|---|---|
| 6-bit digital gain control | Enables precise 0.5 dB resolution over 31.5 dB dynamic range - critical for closed-loop AGC calibration. |
| User-selectable power-up state | Configurable via PUP1/PUP2 pins or D0–D5 latch, eliminating need for initialization firmware at boot. |
| Integrated SEROUT daisy-chain capability | Allows serial control of multiple Hittite components using single MCU GPIO, reducing routing complexity. |
| No external matching required | Input/output ports internally matched to 50 Ω - eliminates discrete matching networks and saves board space. |
| Single +5 V supply operation | Unifies analog and digital rail requirements, simplifying power architecture in compact RF modules. |
Applications
| Cellular/3G Infrastructure | WiMAX / 4G Base Stations |
|---|---|
Use Scenario: Dynamic uplink/downlink gain adjustment in macrocell BTS transceivers operating across 700–2700 MHz bands. IC Role / Device Role / Timing Role: Digitally controlled RF gain block in transmit chain, compensating for antenna path loss and PA temperature drift. Use Value: Maintains EVM compliance under varying signal conditions using 0.5 dB step resolution and <±0.3 dB gain error up to 6 GHz. |
Use Scenario: Adaptive gain control in WiMAX CPE and 4G LTE femtocell receivers handling multi-channel OFDMA signals. IC Role / Device Role / Timing Role: IF-stage variable gain amplifier preceding ADC, adjusting signal level to maximize SNR without clipping. Use Value: Delivers 6 dB noise figure at 2.5 GHz and +33 dBm OIP3 to preserve channel orthogonality in dense spectral environments. |
| Microwave Radio & VSAT | Test Equipment Signal Path |
Use Scenario: Gain stabilization in 6–40 GHz point-to-point backhaul radios using IF translation architectures. IC Role / Device Role / Timing Role: DC–6 GHz broadband gain element in intermediate frequency section, supporting wideband modulation schemes. Use Value: Provides flat gain response (±0.25 dB step error) and >13 dB input/output return loss across full bandwidth - minimizing VSWR-induced distortion. |
Use Scenario: Programmable signal conditioning in vector network analyzers and RF signal generators for calibration and stimulus control. IC Role / Device Role / Timing Role: Precision attenuator/gain stage in automated test signal path, synchronized via serial interface to host controller. Use Value: Enables repeatable, software-defined gain sweeps with traceable 0.5 dB steps and <10 ns LE timing margin for high-throughput ATE. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital variable gain amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HMC624LP5E | Same 6-bit, 0.5 dB step architecture but limited to DC–4 GHz; lower OIP3 (+31 dBm) and higher NF (7.5 dB at 2 GHz). | Suitable for sub-4 GHz infrastructure where extended bandwidth is unnecessary and cost sensitivity is higher. | Select when 4 GHz upper limit suffices and BOM cost optimization is prioritized over 6 GHz headroom. |
| ADL5330ACPZ-R7 | Analog Devices part with 0–30 dB analog voltage-controlled gain range; requires external DAC and loop compensation; no digital interface. | Used in legacy analog AGC designs where microcontroller-based digital control is unavailable or undesirable. | Choose only if system already uses analog control infrastructure and digital reconfiguration is not required. |
Compared with HMC624LP5E and ADL5330ACPZ-R7, the 116960-HMC625ALP5 offers superior 6 GHz bandwidth, higher linearity (+33 dBm IP3), and native digital control - making it optimal for next-generation wireless test and broadband infrastructure where precision, speed, and frequency coverage are critical.
Availability
116960-HMC625ALP5 is available at Aetrix Electronics and suitable for cellular infrastructure, microwave radio, and RF test equipment requiring stable component supply, long-term lifecycle support, and RoHS-compliant SMT packaging.
Supply support for 116960-HMC625ALP5 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
Hittite Microwave Corporation was a U.S.-based RF/microwave semiconductor company specializing in high-performance GaAs and GaN MMICs, acquired by Analog Devices in 2014; known for precision RF signal chain components.
The HMC625ALP5 belongs to Hittite's digital variable gain amplifier product line, designed specifically for broadband wireless infrastructure and instrumentation requiring accurate, fast, and repeatable gain control without external matching.
FAQ
What is the operating frequency range of the 116960-HMC625ALP5?
The 116960-HMC625ALP5 operates from DC to 6 GHz, covering all major cellular (700 MHz–2.7 GHz), WiMAX (2.3–3.8 GHz), and microwave radio (6–40 GHz IF) bands. Its gain flatness and return loss remain specified across this full range, with measured performance validated up to 6 GHz in both maximum-gain and attenuation states.
Does the 116960-HMC625ALP5 require external matching components?
No, the 116960-HMC625ALP5 requires no external matching components. Its RF input (AMPIN) and output (AMPOUT) ports are internally matched to 50 Ω across DC–6 GHz. External DC blocking capacitors are required on all RF ports, but impedance-matching networks, baluns, or transformers are unnecessary - reducing bill-of-materials and layout complexity.
How does the power-up state selection work on the 116960-HMC625ALP5?
The 116960-HMC625ALP5 supports user-defined power-up states via two methods: if LE is low at power-up, PUP1 and PUP2 pins select one of eight preset gain offsets (–31.5 dB to 0 dB); if LE is high, the D0–D5 parallel inputs define the initial state. The device latches the selected state ~200 ms after power application, eliminating startup uncertainty in unattended systems.
What are the supply voltage and current requirements for the 116960-HMC625ALP5?
The 116960-HMC625ALP5 operates from a single +5 V supply applied to Vdd (pin 17) and Vs (pin 29). Total supply current ranges from 60 mA (minimum) to 100 mA (maximum) across DC–6 GHz, with typical values of 2.5 mA for logic (Idd) and 85 mA for RF output stage (Is) at +5 V - enabling direct use with standard LDOs or DC/DC converters.
Can the 116960-HMC625ALP5 be used in cascade configurations with other Hittite devices?
Yes, the 116960-HMC625ALP5 supports cascaded serial control via its SEROUT pin (pin 14), which outputs the SERIN data delayed by six clock cycles. This allows daisy-chaining multiple Hittite serial-controlled components (e.g., switches, attenuators, amplifiers) using a single SPI bus - reducing GPIO count and simplifying firmware control in complex RF front-ends.
116960-HMC625ALP5 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Packaging:
- Box
- Product Status:
- Obsolete
- Type:
- Amplifier
- Frequency:
- 0Hz ~ 6GHz
- Contents:
- Board(s)
- Utilized IC / Part:
- HMC625ALP5
116960-HMC625ALP5 FAQ
1.How can I place an order for 116960-HMC625ALP5 through Aetrix?
Please submit a Request for Quotation (RFQ) for 116960-HMC625ALP5 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 116960-HMC625ALP5 reliable?
The price and inventory of 116960-HMC625ALP5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 116960-HMC625ALP5 is usually 5 days.
3.What payment methods are accepted for 116960-HMC625ALP5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 116960-HMC625ALP5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 116960-HMC625ALP5?
116960-HMC625ALP5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 116960-HMC625ALP5 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 116960-HMC625ALP5?
For technical support, including 116960-HMC625ALP5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 116960-HMC625ALP5 requirements.
6.How does Aetrix verify that 116960-HMC625ALP5 is sourced from the original manufacturer or authorized distributors?
All 116960-HMC625ALP5 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 116960-HMC625ALP5 meets industry standards.
7.What is the process for return or replacement of 116960-HMC625ALP5?
All 116960-HMC625ALP5 units undergo pre-shipment inspection (PSI). If there is an issue with 116960-HMC625ALP5, 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 116960-HMC625ALP5 part is unused and in its original packaging.
Return procedure for 116960-HMC625ALP5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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