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ADF7020-1:  High Performance, ISM Band, FSK/ASK Transceiver IC

Product Details

The ADF7020-1 is a low power, highly integrated FSK/GFSK/ASK/OOK/GOOK transceiver designed for operation in the low UHF and VHF bands. The ADF7020-1 uses an external VCO inductor which allows you to set the operating frequency anywhere between 135MHz and 650MHz. Typical range of the VCO is about 10% of the operating frequency. A complete transceiver can be built using a small number of external discrete components, making the ADF7020-1 very suitable for price-sensitive and area-sensitive applications.

The transmit section contains a VCO and low noise fractional-N PLL with output resolution of <1 ppm. This frequency agile PLL allows the ADF7020-1 to be used in frequency hopping spread spectrum (FHSS) systems. The VCO operates at twice the fundamental frequency to reduce spurious emissions and frequency pulling problems.

The transmitter output power is programmable in 0.3 dB steps from −16 dBm to +13 dBm. The transceiver RF frequency, channel spacing, and modulation are programmable using a simple 3-wire interface. The device operates with a power supply range of 2.3 V to 3.6 V and can be powered down when not in use.

A low IF architecture is used in the receiver (200 kHz) minimizing power consumption and the external component count and avoiding interference problems at low frequencies. The ADF7020-1 supports a wide variety of programmable features including Rx linearity, sensitivity, and IF bandwidth, allowing the user to trade off receiver sensitivity and selectivity against current consumption, depending on the application. The receiver also features a patent-pending automatic frequency control (AFC) loop, allowing the PLL to track out the frequency error in the incoming signal.

An on-chip ADC provides readback of an integrated temperature sensor, an external analog input, the battery voltage, or the RSSI signal, which provides savings on an ADC in some applications. The temperature sensor is accurate to ±10°C over the full operating temperature range of −40°C to +85°C. This accuracy can be improved by doing a 1-point calibration at room temperature and storing the result in memory.


  • Low power, low IF transceiver
  • Frequency bands: 135 MHz to 650 MHz
  • Data rates supported:
    FSK: 0.15 kbps to 200 kbps
    ASK:0.15 kbps to 64 kbps
  • 2.3 V to 3.6 V power supply
  • Receiver sensitivity
    -119 dBm at 1 kbps, FSK
    -112 dBm at 9.6 kbps, FSK
    -106.5 dBm at 9.6 kbps, ASK
  • Programmable output power: -16 dBm to +13 dBm in 0.3 dBm steps
  • On-chip VCO and fractional-N PLL
  • Low power consumption
    18 mA in receive mode
    27 mA in transmit mode (10 dBm output)
  • On-chip 7-bit ADC and temperature sensor
  • Fully automatic frequency control loop (AFC) compensates for lower tolerance crystals
  • Digital RSSI
  • Integrated TRx switch

Functional Block Diagram for ADF7020-1

3rd party developers information

ADF70xx Third Party Developers
There is a growing list of companies developing a wide range of solutions that support ADI’s ADF70xx products. View the list and learn more about becoming a third party developer.


Title Content Type File Type
ADF7020-1: High Performance, FSK/ASK Transceiver IC Data Sheet (Rev 0, 12/2005) (pdf, 774 kB) Data Sheets PDF
AN-859: RF Port Impedance Data, Matching, and External Component Selection for the ADF7020-1, ADF7021, and ADF7021-N  (pdf, 333 kB) Application Notes PDF
AN-915: CDR Operation for ADF7020, ADF7020-1, ADF7021, and ADF7025  (pdf, 439 kB) Application Notes PDF
AN-772: A Design and Manufacturing Guide for the Lead Frame Chip Scale Package (LFCSP)  (pdf, 439 kB) Application Notes PDF
AN-852: Using the Test DAC on the ADF702x to Implement Functions Such as Analog FM DEMOD, SNR Measurement, FEC Decoding, and PSK/4FSK Demodulation  (pdf, 259 kB) Application Notes PDF
Wireless Technologies for Smart Meters: Focus on Water Metering  (pdf, 493 kB) Technical Articles PDF
RF Meets Power Lines: Designing Intelligent Smart Grid Systems that Promote Energy Efficiency
RF DesignLine, March 2010
Technical Articles HTML
The Use of Short Range Wireless in a Multi-Metering System  (pdf, 220 kB)
One of the more evident trends at the recent Metering Europe 2006 event in Copenhagen was that both meter manufacturers and utility companies are placing an increased emphasis on the use of communication networks to create added value for their systems and also to leverage from infrastructure investment already in place.
(Metering International, December, 2006)
Technical Articles PDF
Understand Wireless Short-Range Devices for Global License-Free Systems
Short-range devices (SRD) are radio transmitters that communicate unidirectionally or bidirectionally with little capability of interfering with other radio equipment. They provide many different services, including home automation, wireless alarms, and remote keyless entry.
(RF DesignLine, March 07, 2007)
Technical Articles HTML
Wireless Short Range Devices and Narrowband Communications
The term “Short Range Device” (SRD) covers radio transmitters which provide either unidirectional or bi-directional communication and which have a low capability of causing interference to other radio equipment.
(Microwave Product Digest, July, 2007)
Technical Articles HTML
Design, Simulate, and Document Proprietary Wireless Systems
The broad acceptance of standards developed for short range wireless connectivity has been one of the notable features of the semiconductor market in the past few years. The available wireless standards are not always the best fit for the application’s requirements, however.
(Analog Dialogue, Volume 42, Number 4 2008)
Technical Articles HTML
Smart Metering Technology Promotes Energy Efficiency for a Greener World
The metering of electric power coming into the home is going electronic, replacing the long-established electromechanical power-line meter (from the 1890s) with all-electronic smart meters.
(RF DesignLine, July 27, 2009)
Technical Articles HTML
Low Power, Low Cost, Wireless ECG Holter Monitor Technical Articles HTML
Emerging Energy Applications Solutions Bulletin, Volume 10, Issue 4  (pdf, 1496 kB) Solutions Bulletins PDF
RF Source Booklet  (PDF, 4353 kB)
RF IC Product Overview - Version P (02/2014)
Overview PDF
RF Transceivers for Short Range Devices  (pdf, 2819 kB)
The ADF7000 series of transmitter and transceiver ICs provides high performance, robust, short range wireless connections.
Overview PDF
RAQs index Rarely Asked Questions HTML
Glossary of EE Terms Glossary HTML

Design Tools,Models,Drivers & Software

Title Content Type File Type
ADIsimSRD Design Studio
Analog Devices ADIsimSRD Design Studio is a very powerful tool allowing real-time simulation and optimization of many of the parameters in a typical wireless system using the ADF7xxx family of transceivers and transmitters.
ADIsim Design/Simulation Tools HTML
RF Design Tools ADIsim Design/Simulation Tools HTML
ADF70xx Evaluation Software  (zip, 25403 kB)
The most up-to-date ADF70xx software download is bundled with all documentation, including schematics, for the ADF70xx family of transceivers. Layout can be found in the gerber files under the documentation tab.
Evaluation Software ZIP

Evaluation Kits & Symbols & Footprints

Evaluation Boards & KitsView the Evaluation Boards and Kits page for documentation and purchasing

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

SampleSample & Buy

Price, packaging, availability

ADF7020-1 Model Options
Model Package Pins Temp.
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
ADF7020-1BCPZ Status: Production 48 ld LFCSP (7x7mm w_4.1mm EP) 48 Ind Tray, 260 $2.32 $1.99 Y  Material Info PCN Purchase Sample
ADF7020-1BCPZ-RL Status: Production 48 ld LFCSP (7x7mm w_4.1mm EP) 48 Ind Reel, 2500 - $1.99 Y  Material Info PCN Purchase
ADF7020-1BCPZ-RL7 Status: Production 48 ld LFCSP (7x7mm w_4.1mm EP) 48 Ind Reel, 750 - $1.99 Y  Material Info PCN Purchase
Price Table Help

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

ADF7020-1 Evaluation Boards
Model Description Price RoHS View PCN/ PDN Check Inventory/
EVAL-ADF70XXMBZ2 Status: Production Mother Board $151.80 Yes -
EVAL-ADF7020-1DBZ4 Status: Production Daughter Board (400 MHz - 440 MHz) $50.60 Yes -
EVAL-ADF7020-1DBZ5 Status: Production Daughter Board (80 MHz - 650 MHz) $50.60 Yes -
EVAL-ADF7020-1DBZ6 Status: Production Daughter Board (470 MHz - 510 MHz) $50.60 Yes -
EVAL-ADF7020-1DBZ7 Status: Production Daughter Board (310 MHz - 340 MHz) $50.60 Yes -
EVAL-ADF7020-1DBZ8 Status: Production Daughter Board (128 MHz - 142 MHz) $50.60 Yes -

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.

Check Inventory & Purchase

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