The ADF7021BCPZ is a low-power, high-performance narrowband RF transceiver IC from Analog Devices (ADI), designed for sub-1 GHz ISM band applications (80–650 MHz and 862–940 MHz). It supports reliable wireless communication in IoT, sensor networks, and industrial systems with flexible modulation schemes and robust signal processing. Its compact LFCSP package and energy-efficient design make it ideal for battery-operated or space-constrained devices.

Key Features

• Frequency range: Operates in global ISM bands (80–650 MHz, 862–940 MHz).
• Modulation: Supports 2FSK/3FSK/4FSK/MSK with Gaussian and root-raised cosine filtering for reduced out-of-band emissions.
• Data rate: 0.05 kbps to 25 kbps with programmable output power (−16 dBm to +13 dBm, 63 steps).
• Receiver sensitivity: −123 dBm (1 kbps FSK) or −130 dBm (100 bps 2FSK) for long-range communication.
• Low power consumption:
• Receive mode: 17–23 mA.
• Transmit mode: 32–54 mA.
• Shutdown mode: 0.1 µA leakage current.
• Integrated features:
• Automatic PA ramp control to minimize spectral interference.
• 7-bit ADC for temperature sensing (±10°C accuracy, −40°C to +85°C) and RSSI monitoring.
• Fully automated frequency control loop (AFC) for stable operation.
• Power supply: Operates from 2.3V to 3.6V, suitable for battery use.

Common uses include wireless sensor networks, smart metering, industrial automation, remote monitoring, asset tracking, and home automation. Its narrowband design, low power profile, and robust performance make it ideal for long-range, low-data-rate IoT applications in harsh environments.

The ADF7021BCPZ combines high sensitivity, flexible modulation, and ultra-low power operation to deliver reliable sub-1 GHz communication. Its integration of advanced features like AFC, temperature sensing, and programmable output power makes it a versatile solution for industrial IoT, M2M systems, and battery-powered devices demanding extended range and longevity.