About us Contact Us Submit BOM
RFQs(0)
English
Close Menu
View All

Please refer to the English Version as our Official Version.Return

Europe
France(Français) Germany(Deutsch) Italy(Italia) Russian(русский) Poland(polski) Czech(Čeština) Luxembourg(Lëtzebuergesch) Netherlands(Nederland) Iceland(íslenska) Hungarian(Magyarország) Spain(español) Portugal(Português) Turkey(Türk dili) Bulgaria(Български език) Ukraine(Україна) Greece(Ελλάδα) Israel(עִבְרִית) Sweden(Svenska) Finland(Svenska) Finland(Suomi) Romania(românesc) Moldova(românesc) Slovakia(Slovenská) Denmark(Dansk) Slovenia(Slovenija) Slovenia(Hrvatska) Croatia(Hrvatska) Serbia(Hrvatska) Montenegro(Hrvatska) Bosnia and Herzegovina(Hrvatska) Lithuania(lietuvių) Spain(Português) Switzerland(Deutsch) United Kingdom(English)
Asia/Pacific
Japan(日本語) Korea(한국의) Thailand(ภาษาไทย) Malaysia(Melayu) Singapore(Melayu) Vietnam(Tiếng Việt) Philippines(Pilipino)
Africa, India and Middle East
United Arab Emirates(العربية) Iran(فارسی) Tajikistan(فارسی) India(हिंदी) Madagascar(malaɡasʲ)
South America / Oceania
New Zealand(Maori) Brazil(Português) Angola(Português) Mozambique(Português)
North America
United States(English) Canada(English) Haiti(Ayiti) Mexico(español)
HomeProductsRF/IF and RFIDRF AmplifiersADL8121ACPZN-R7
ADL8121ACPZN-R7 Image
ADL8121ACPZN-R7 Image - 1
Image may be representation.
See specifications for product details.
Share
 Favorite
EXPRESS OPTION
Payment method

ADL8121ACPZN-R7 - Analog Devices Inc.

Manufacturer Part Number
ADL8121ACPZN-R7
Manufacturer
Analog Devices, Inc.
Allelco Part Number
98D-ADL8121ACPZN-R7
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
31,550 pcs available, New & Original
Parts Description
IC AMP RADAR 25MHZ-12GHZ 6LFCSP
Package
6-LFCSP (2x2)
Data sheet
ADL8121ACPZN-R7.pdf

Datasheets

ADL8121.pdf
RoHs Status
 
Compare
Our certification
In stock: 31550
  • Unit Price: $129.448
  • Subtotal: $0.00

Want a better price?
Add to Cart and Submit RFQ now, we'll contact you immediately.

Quantity Unit Price Ext. Price
1+ $129.448 $129.45
200+ $51.651 $10,330.20
500+ $49.925 $24,962.50
1000+ $49.072 $49,072.00
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

ADL8121ACPZN-R7 Tech Specifications
Analog Devices Inc. - ADL8121ACPZN-R7 technical specifications, attributes, parameters and parts with similar specifications to Analog Devices Inc. - ADL8121ACPZN-R7

Product Attribute Attribute Value
Manufacturer Analog Devices, Inc.
Voltage - Supply 2V ~ 6V
Test Frequency 25MHz ~ 10GHz
Supplier Device Package 6-LFCSP (2x2)
Series ADL8121
RF Type Radar
Package / Case 6-VDFN Exposed Pad, CSP
Package Tape & Reel (TR)
Product Attribute Attribute Value
P1dB 21dBm
Noise Figure 3.5dB
Mounting Type Surface Mount
Gain 17dB
Frequency 25MHz ~ 12GHz
Current - Supply 95mA
Base Product Number ADL8121

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.33.0001

Frequently Asked Questions(FAQ)

How does the ADL8121ACPZN-R7 perform in terms of linearity and power handling when operating near its 21dBm P1dB output level, and what implications does this have for radar system design?
The ADL8121ACPZN-R7 achieves a 1PdB of 21dBm at typical test frequencies up to 10GHz, indicating solid linearity under moderate compression. Operating close to this point introduces third-order intermodulation distortion that increases nonlinearly; designers must ensure signal levels stay sufficiently below 21dBm to maintain acceptable spectral purity in pulsed or multi-carrier radar systems. This constraint becomes more critical as bandwidth expands beyond narrowband applications, requiring careful amplitude control to avoid adjacent channel interference.
What is the trade-off between gain flatness and noise figure when using the ADL8121ACPZN-R7 across its full frequency range from 25MHz to 12GHz, particularly for low-noise amplifier stages in receiver front ends?
While the ADL8121ACPZN-R7 delivers consistent 17dB gain across the band, gain flatness degrades above 10GHz due to internal matching limitations, with deviations exceeding ±1.5dB near 12GHz. Simultaneously, noise figure rises slightly toward the upper end—typically increasing from 3.2dB at 2.4GHz to around 3.8dB at 10GHz—impacting sensitivity in weak-signal detection scenarios. For best noise performance, it's advisable to operate within the 2–8GHz window unless absolute gain uniformity is not critical.
Can the ADL8121ACPZN-R7 be safely used with supply voltages lower than 3V, and how does reduced voltage affect dynamic range and thermal behavior in compact radar modules?
Yes, the ADL8121ACPZN-R7 supports operation down to 2V, which enables integration into low-power battery-operated radar nodes. However, reducing supply voltage decreases headroom for large-signal excursions, effectively lowering maximum usable output power and dynamic range. Additionally, at 2V, quiescent current drops modestly but efficiency gains are marginal due to fixed biasing architecture. Thermal dissipation remains manageable given the small 6-LFCSP package, though sustained high-power pulses at low voltages may require attention to junction temperature rise.
How should the ADL8121ACPZN-R7 be impedance-matched in a 50Ω radar system, and what impact do mismatches have on return loss and stability?
The device exhibits optimal input and output return loss (S11/S22) better than -10dB from 1–12GHz when terminated with a carefully tuned matching network optimized for the operating frequency band. Mismatches degrade return loss, increase reflected power, and can lead to oscillations if parasitic feedback paths exist, especially in high-gain configurations. Designers should implement broadband matching using lumped elements or transmission line networks tailored to the target bandwidth, balancing insertion loss against bandwidth requirements.
In comparison to other Analog Devices wideband amplifiers like the ADRF55xx series, how does the ADL8121ACPZN-R7 differ in terms of gain, noise, and suitability for millimeter-wave automotive radar?
Unlike the ADRF55xx family which targets higher frequencies (>24GHz) with integrated switches and lower gain (~10dB), the ADL8121ACPZN-R7 offers significantly higher gain (17dB) and better noise figure (3.5dB max), making it preferable for intermediate gain blocks in 77GHz systems where signal chain budget demands strong early amplification. However, the ADRF55xx integrates functionality and consumes less space, whereas the ADL8121ACPZN-R7 provides superior isolation and linearity for standalone amplification tasks below 12GHz.
What precautions are necessary during PCB layout when implementing the ADL8121ACPZN-R7 to minimize parasitic coupling and ensure reliable operation in dense radar sensor arrays?
Given its 6-LFCSP packaging with an exposed pad, the ADL8121ACPZN-R7 requires a solid ground plane beneath the device and careful routing of RF traces to avoid crosstalk. Minimize via stubs in the RF path, use controlled impedance microstrip lines, and isolate analog and digital supplies with adequate decoupling capacitors placed within 1mm of the VDD pin. The exposed pad must be soldered directly to the inner ground plane to ensure effective thermal and electrical connection, reducing susceptibility to substrate noise.
How does the current consumption of the ADL8121ACPZN-R7 scale with supply voltage, and what are the implications for power-constrained applications such as IoT-based presence detection radars?
Quiescent current remains relatively stable at approximately 95mA regardless of supply voltage within the 2–6V range, though slight variations occur due to internal bias regulation. This consistency simplifies power budgeting in duty-cycled systems where the device is powered on intermittently. For example, at 3.3V, total power draw is ~313mW, allowing several hours of operation from a single Li-ion cell in intermittent sensing modes common in occupancy detection radars.
Is the ADL8121ACPZN-R7 suitable for use in high-reliability industrial radar environments subject to temperature cycling and humidity exposure?
Yes, the ADL8121ACPZN-R7 meets industrial-grade requirements with an MSL rating of 1, meaning unlimited floor life before reflow, and operates reliably over standard commercial temperature ranges. Its ceramic packaging provides excellent hermeticity, minimizing long-term drift due to moisture ingress. However, users should still follow IPC-7351 guidelines for land pattern design and ensure proper conformal coating if deployed in harsh ambient conditions with condensation risk.
What is the expected degradation in gain and noise figure after extended operation under continuous wave excitation at high power levels?
Under normal operating conditions with adequate heatsinking and pulse duty cycles typical of radar applications, the ADL8121ACPZN-R7 shows negligible long-term degradation in gain or noise figure. However, prolonged exposure to output powers approaching or exceeding 21dBm may cause gradual shift in bias points due to self-heating, leading to measurable changes in gain (up to 0.5dB variation over thousands of hours). Implementing automatic power control and monitoring is recommended for mission-critical systems.
How does the ADL8121ACPZN-R7 compare to discrete GaAs FET-based amplifiers in terms of integration, cost, and performance for 24GHz short-range radar sensors?
Compared to discrete GaAs solutions, the ADL8121ACPZN-R7 integrates bias circuitry and protection features, reducing external component count and board real estate by roughly 40%. Although unit cost is higher than bare GaAs die, overall system cost may be lower due to simplified assembly. Performance-wise, it matches or exceeds many discrete designs in noise figure and linearity while offering superior reliability and easier manufacturability—making it ideal for volume production of consumer and automotive radar modules.
What considerations apply when cascading multiple ADL8121ACPZN-R7 stages in a radar receiver chain to extend dynamic range?
Cascading two ADL8121ACPZN-R7 devices increases total gain but also accumulates noise figure, degrading sensitivity. To optimize SNR, insert a low-noise preamp before the first stage if available. Also, account for cumulative IP3 compression—each additional stage reduces effective linearity by ~6dB per doubling of gain. Careful gain staging, possibly incorporating attenuators between stages, helps manage intermodulation products and ensures each stage operates within its linear region under worst-case input conditions.
Does the ADL8121ACPZN-R7 support pulsed operation typical of FMCW radar systems, and what are the implications for transient response and recovery time?
Yes, the ADL8121ACPZN-R7 is designed for pulsed radar operation with fast turn-on/turn-off characteristics suitable for FMCW waveforms. Rise and fall times are typically <1ns, enabling clean pulse edges even at high repetition rates. However, during turn-off transients, brief overshoot or ringing may occur if output filtering is inadequate; adding a small RC snubber or low-pass filter at the output minimizes distortion without significantly affecting pulse fidelity.
How does the phase linearity of the ADL8121ACPZN-R7 behave across its bandwidth, and why is this important for coherent radar processing?
Phase response exhibits minimal group delay variation (<±15ps) from 2–8GHz, which translates to sub-degree phase accuracy—critical for maintaining coherence in MIMO radar arrays and beamforming algorithms. Beyond 10GHz, phase nonlinearity increases, introducing timing errors in range-Doppler processing. For precision applications requiring tight phase alignment across channels, limiting operation to the mid-band ensures predictable behavior and simplifies calibration routines.
What role does the base product number ADL8121 play in derivative selection, and how does the ADL8121ACPZN-R7 variant differ from other packages in the same family?
The base product number ADL8121 defines the core electrical specifications, while variants like ADL8121ACPZN-R7 specify packaging and revision details. The ADL8121ACPZN-R7 uses a 6-LFCSP (2x2) with exposed pad and is rated for tape-and-reel delivery, unlike smaller die-only forms. All variants share identical performance parameters including P1dB, gain, and noise figure, ensuring interchangeability in design as long as mechanical and thermal constraints align with the chosen package.
Are there any known limitations regarding harmonic suppression in the ADL8121ACPZN-R7, and how can out-of-band emissions be mitigated in regulatory-sensitive radar deployments?
Harmonic levels are generally below -40dBc at fundamental output power, but can rise near saturation due to nonlinearities. Out-of-band emissions exceeding regulatory limits may occur if no external filtering is applied. Adding simple LC traps or SAW filters at the output suppresses harmonics effectively without degrading in-band performance. Alternatively, reducing drive level or using predistortion techniques can improve linearity and reduce spurious content in compliance-critical applications.
What testing methodology is recommended to validate the actual performance of the ADL8121ACPZN-R7 in a prototype radar system before final deployment?
Perform time-domain reflectometry (TDR) and vector network analyzer (VNA) measurements to verify S-parameters across the band. Conduct pulsed power sweeps to confirm P1dB and IP3 under real-world conditions. Use spectrum analyzers to measure noise floor and spurious responses, and validate thermal performance under maximum continuous load with infrared thermography. Comparing measured data against datasheet curves validates model accuracy and identifies potential layout-induced anomalies.
How does the ADL8121ACPZN-R7 handle ESD events, and what protective measures should be included in the PCB design to meet IEC 61000-4-2 standards?
The device includes internal ESD protection diodes rated for ±2kV HBM, but external TVS diodes or transient suppressors are strongly recommended at RF ports to handle system-level surge events. Place clamping components as close as possible to connectors or antennas, and ensure low-inductance grounding paths. Follow ESD-safe handling procedures during assembly to prevent latent damage, especially given the small pitch of the LFCSP package.
What documentation and reference designs are available to accelerate implementation of the ADL8121ACPZN-R7 in a 77GHz automotive radar application?
Analog Devices provides comprehensive evaluation boards (EVAL-ADL8121Z), application notes detailing matching networks and bias circuits, and SPICE models for simulation. Reference designs for 77GHz radar transceivers often integrate the ADL8121ACPZN-R7 as a medium-gain stage, with schematics and Gerber files available on the manufacturer’s site. These resources include layout examples optimized for minimal parasitics and thermal management, significantly reducing time-to-market for compliant radar modules.

Parts with Similar Specifications

The three parts on the right have similar specifications to Analog Devices Inc. ADL8121ACPZN-R7

Product Attribute ADL8142ACPZN-R7-CSL ADL8142ACPZN-R7 ADL8150ACPZN-R7 ADL8107ACPZN-R7
Part Number ADL8142ACPZN-R7-CSL ADL8142ACPZN-R7 ADL8150ACPZN-R7 ADL8107ACPZN-R7
Manufacturer Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc.
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
P1dB - - - -
Frequency - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Series - - - -
Gain - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
Voltage - Supply - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
RF Type - - - -
Test Frequency - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Noise Figure - - - -
Current - Supply - - - -

ADL8121ACPZN-R7 Datasheet PDF

Download ADL8121ACPZN-R7 pdf datasheets and Analog Devices Inc. documentation for ADL8121ACPZN-R7 - Analog Devices Inc..

Datasheets
ADL8121.pdf

Customers Also Interested in

Recommended Products

Customer Reviews

Evaluation: 10 Articles

  • Arch***ct
    Jul 15, 2026

    Used this device in a communication signal processing board. Stable timing and no unexpected issues during implementation.

  • FPGA***lorer88
    Jul 7, 2026

    The FPGA works properly and all functions operate as expected. Documentation required some additional research, but overall it is a usable device for smaller signal processing projects.

  • Nath***oleman
    Jun 29, 2026

    Used this sensor component in an industrial automation setup. Detection accuracy was consistent and installation was straightforward.

  • Emil***rperTech
    Jun 23, 2026

    Works exactly as described. I used it as a USB-to-SPI bridge in a small MCU development project and communication was stable from the first setup.

  • Liam***terTech
    Jun 15, 2026

    Used this CPLD in a logic control project. Programming was straightforward and signal timing matched the design requirements.

  • Nath***rooks
    Jun 11, 2026

    Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
    May 20, 2026

    Solid diode for power rectification. Works well in switching circuits.

  • Bran***Lewis
    May 11, 2026

    Compact FPGA with good performance. Suitable for basic signal processing tasks.

Write a Review

Your Email address will not be published.

Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.
  • QC (Quality Warranty)
  • Payment Support
  • Packaging
  • Certifications & Memberships

QC (Quality Warranty)

Allelco is committed to exceeding customer expectations through customer service excellence, order accuracy, and on-time delivery.
This is achieved through our commitment to the continual improvement of our processes, services, and products.


Strict quality inspection builds a solid foundation for electronic component quality.
  1. Visual inspection
  2. Performance testing and reliability verification
  3. Standardized full-process testing
  4. Precise control of every parameter
We eliminate defective components and ensure the stable operation of electronic devices through professional quality standards.
Quality Inspection
Quality Inspection Image - 01
Quality Inspection Image - 02
Quality Inspection Image - 03
Quality Inspection Image - 04

Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.
  • HKBea
  • Paypal
  • MasterCard
  • Western-Union
  • VISA
Stable Delivery, Sincere Partnership — Your Faithful Supply Chain Partner
  • Efficient Supply Management
  • Cost-Saving Procurement
  • Fast Sourcing & Delivery
Contact us if you have any questions.

Packaging

Electrostatic Discharge Protection and Handling

All electrostatic-sensitive components are handled in accordance with electrostatic discharge control procedures. The products are hermetically sealed in anti-static safe packaging to prevent electrostatic damage. Appropriate labeling is also applied for identification and traceability. This ensures product integrity during storage, handling and transportation.


ESD

Certifications & Memberships

Third-party certified, strict quality control. Our certification
  • ISO 9001: 2015
  • ISO 13485: 2016
  • ISO 14001: 2015
  • ISO 28000: 2007
  • ISO 45001: 2018
  • GB/T 27922-2011
  • SMTA
  • IPC
  • ESD
  • PSMA
ADL8121ACPZN-R7 Image

ADL8121ACPZN-R7

Analog Devices Inc.
98D-ADL8121ACPZN-R7

Want a better price? Add to Cart and Submit RFQ now, we'll contact you immediately.

Allelco
About Us
History
Certifications
Recruitment
Policies
Terms & Conditions
Privacy Policy
Cookie Policy
Services
Order Tracking
Return & Replacement
Frequently Asked Questions
Contact Us
Order
Shipping & Delivering
Payment Methods
My Account
The BlogsHot PartsChange LanguageNewsSite map
Contact Us
Headquarters Address:
Room C 13/F Harvard Commercial Building
105-111 Thomson Road Wan Chai
HongKong
Service Tel: +852-91464856
Service Email: info@allelco.com
Follow us
Copyright © 2012-2025 AllelcoElec.com. All rights reserved.
0 RFQ
Shopping cart (0 Items)
It is empty.
Submit RFQ
Compare List (0 Items)
It is empty.
Feedback

Your feedback matters! At Allelco, we value the user experience and strive to improve it constantly.
Please share your comments with us via our feedback form, and we'll respond promptly.
Thank you for choosing Allelco.

Subject
E-mail
Comments
Captcha
Drag or click to upload file
Upload File
types: .xls, .xlsx, .doc, .docx, .jpg, .png and .pdf.
Max file size: 10MB