Analog Devices Inc. ADuCRF101 Precision Analog MCUs

Analog Devices ADuCRF101 Precision Analog Microcontrollers provide a fully integrated, data acquisition solution for low-power, wireless applications. They feature a 12-bit analog-to-digital converter (ADC), a low-power ARM® Cortex®-M3 processor, 862MHz to 928MHz, and 431MHz to 464MHz RF transceiver, and Flash®/EE memory. The ADuCRF101 is packaged in a 9mm × 9mm LFCSP. The data acquisition section consists of a 12-bit SAR ADC. The six inputs can be configured in single-ended or differential mode.

When configured in single-ended mode, they can be used for ratiometric measurements on sensors that are powered, when required, from the internal low dropout regulator (LDO). An internal battery monitor channel and an on-chip temperature sensor are also available. This wireless data acquisition system is designed to operate in battery-powered applications where low power is critical. The device can be configured in normal operating mode or different low power modes under direct program control. In flexi-mode, any peripheral can wake up the device and operate it. In hibernate mode, the internal wake-up timer remains active. In shutdown mode, only an external interrupt can wake up the device.


  • Analog input/output (I/O)
  • 6-channel, 12-bit SAR ADC
    • Single-ended and differential inputs
    • Programmable data rate of up to 167kSPS
    • On-chip voltage reference
    • Supply range: 2.2V to 3.6V
    • Power consumption
    • 280nA in shutdown mode, non-retained state
    • 1.9μA in hibernate mode, the processor memory and transceiver memory retained, RF transceiver in sleep mode
    • 210μA/MHz Cortex-M3 dynamic current
    • 12.8mA transceiver in receive mode, Cortex-M3 in hibernate mode
    • 9mA to 32mA transceiver in transmit mode, Cortex-M3 in hibernate mode
  • RF transceiver
    • Frequency bands: 862MHz to 928MHz; 431MHz to 464MHz
    • Multiple configurations supported
    • Receiver sensitivity, bit error rate (BER)
    • −107.5dBm at 38.4kbps, 2FSK
    • Single-ended and differential power amplifier (PA)
    • Low external bill of materials (BOM)
  • Microcontroller
    • 32-bit ARM Cortex-M3 processor
    • Serial wire download and debug
    • External watch crystal for a wake-up timer
    • 16MHz internal oscillator with 8-way, programmable divider


  • Battery-powered wireless sensors
  • Medical telemetry systems
  • Industrial and home automation
  • Asset tracking
  • Security systems (access systems)
  • Health and fitness applications

Functional Block Diagram

Analog Devices Inc. ADuCRF101 Precision Analog MCUs

Pin Configuration and Function Description

Analog Devices Inc. ADuCRF101 Precision Analog MCUs
Published: 2015-02-06 | Updated: 2022-03-11