ANT Ultra Low Power Wireless


1-channel ANT™ Connectivity IC


The nRF24AP2-1CH is a highly integrated single-chip single-channel ANT™ Connectivity IC. It includes an ultra low power 2.4GHz RF transceiver and a fully embedded enhanced ANT protocol stack, plus a flexible serial interface supporting a wide range of external application microcontrollers. Offering sub-17mA peak currents, average currents as low as 11μA. and a 1.9 to 3.6V supply range, the nRF24AP2-1CH supports extended battery lifetimes of months to years from a single coin cell. This ultra low power operation also makes the nRF24AP2-1CH ideally suited to battery-operated ANT devices such as HRMs (heart rate monitors), speed-distance sensors, and bike speed-cadence sensors.

The integrated 2.4GHz RF transceiver core is based on the nRF24L01+ and provides significant sensitivity and co-existence performance improvements compared to Nordic's previous generation nRF24AP1 IC. The on-chip ANT protocol stack features full compatibility with all ANT+ profiles and includes advanced features such as: Scanning Channel applications demanding low latency performance, improved Channel Search for less impact on active channels, and a per channel-based TX Output Power Control and Frequency Agility mode for improved co-existence performance.

The nRF24AP2-1CH is available in the following package option:

  • 5 x 5mm 32-pin QFN


  • Single-chip ANT™ Connectivity IC with fully integrated radio and protocol stack
  • Full compatibility with ANT+ profiles enabling multivendor interoperability
  • Simple serial interface supporting a wide range of external application microcontrollers
  • Best-in-class ultra low power operation – enabling months to years of battery lifetime from a regular CR2032 coin cell
  • Cost-optimized single channel ANT support making it ideal for ANT/ANT+ sensors


  • Ultra low power wireless networks
  • Sports, fitness, and healthcare ANT+ sensors
  • Home and Industrial automation
  • Active RF ID





Related Products

Product Brief description
nRF24AP2-8CH 8-channel ANT Connectivity IC
nRF24AP2-USB 8-channel ANT Connectivity IC with USB

Ordering codes




Ultra low power single-chip 1-channel ANT™ Connectivity IC with integrated radio, protocol stack and serial interface for application microcontroller

Ultra low power consumption

  • 14µA average for Broadcast TX at 0.5Hz message rate
  • 54µA average for Broadcast TX at 2Hz message rate
  • 11µA average for Broadcast RX at 0.5Hz message rate
  • 42µA average for Broadcast RX at 2Hz message rate
  • 18µA average for Acknowledged TX at 0.5Hz message rate
  • 70µA average for Acknowledged TX at 2Hz message rate
  • 13µA average for Acknowledged TX at 0.5Hz message rate
  • 52µA average for Acknowledged TX at 2Hz message rate
  • 5.9mA average for 20kbps Burst mode
  • 500nA deep sleep state
  • 2.0µA suspend state
  • 15mA Active TX peak current at 0dBm
  • 17mA Active RX peak current


2.4GHz Radio

  • 2.4GHz ISM band operation
  • GFSK modulation 1MHz bandwidth
  • 0, -6, -12, and -18dBm programmable TX output power
  • 1Mbs on-air data rate
  • -85dBm RX sensitivity at 1Mbps
  • Excellent co-existence performance
  • Compatible with 16MHz ±50ppm crystals

Embedded ANT™ protocol stack

  • Supports 1 x ANT channel
  • Advanced network topologies:
    peer-to-peer, star, tree and practical mesh
  • Broadcast, Acknowledged and Burst message types
  • Programmable message rate from 0.5 to 190Hz
  • Up to 20kbps burst transfers rate
  • Per channel TX output power control
  • Supports ANT Frequency Agility
  • Continuous scanning mode for low latency
  • Improved channel search
  • Channel ID management pairing efficiency
  • Proximity search for simple pairing

Oscillators and Timers

  • 16MHz XO
  • 32kHz XO


Host Controller Interface

  • 5-pin UART with 4800 to 57600 baud rate
  • 6-pin Synchronous, Byte/bit flow control


Power supply

  • Internal linear voltage regulator
  • 1.9 to 3.6V supply range


Temperature range of -40 to +80 ºC

Package options

  • 32-pin 5 x 5mm QFN
Development tools and Software


nRF2AP2-1CH is supported by the following development tools and software:

Product Brief description
nRF24AP2 Development Kit ANT Development Kit for nRF24AP2-1CH/8CH

Product Specification

Code Name Version
nRF24AP2-PS nRF24AP2 Product Specification 1.2
PAN-014 Product Anomaly Notification 1.1
PAN-022 Product Anomaly Notification 2.0
PCN-059 Product Change Notification - Cu as additional bond wire option 1.0
PCN-075 Product Change Notification 1_0
PCN-094 Change on outer box container for trays and 7” reels 1.0


PC software
To aid your product development, Nordic also offers a range of tools enabling you to interact with and monitor your product


Code Name Version
ANTware-SW ANTware II 4.100

Reference Layout

Code Name Version
nRF24AP2-DF1 nRF24AP2 Asynchronous Reference Layout 1.3
nRF24AP2-DF2 nRF24AP2 Synchronous bit flow Reference Layout 1.3
nRF24AP2-DF3 nRF24AP2 Synchronous Byte flow Reference Layout 1.3

Application Notes

Code Name Version
nAN24-08 nRF Performance Test Instructions 1.1
nAN24-13 How to measure crystal start up time for nRF24LE1 1.0
nAN400-08 QFN Soldering Reflow Guidelines 1.2

White Papers

Code Name Version
nWP-001 Benefits of Total Integration of Large RF Circuits
nWP-005 Introduction to wireless networks
nWP-006 nRF Performance Test Guidelines 1.0
nWP-008 Quarterwave printed monopole antenna for 2.4GHz
nWP-010 Regulatory and Compliance Standards for RF Devices
nWP-011 Sharing crystal with a microcontroller (MCU) 1.1
nWP-013 Tuning the nRF24xx matching network
nWP-015 Crystal Oscillator Design Considerations
nWP-017 Antenna tuning 1.0

User Guides

Code Name Version
ANTmes-UG ANT Message Protocol and Usage 5.0
ANTware-UG ANTware II User's Guide 1.1