Analog Devices Inc. AD9102 TxDAC® & Waveform Generator

Analog Devices Inc. AD9102 TxDAC® and Waveform Generator integrates on-chip pattern memory for complex waveform generation with a direct digital synthesizer (DDS). The DDS is a 14-bit output, up to 180MSPS master clock sine wave generator with a 24-bit tuning word, allowing 10.8Hz/LSB frequency resolution. SRAM data can include directly generated stored waveforms, amplitude modulation patterns applied to DDS outputs, or DDS frequency tuning words.

The ADI AD9102 TxDAC and Waveform Generator utilizes an internal pattern control state machine to program the pattern and start delay within the pattern period for the signal output on the DAC. The device offers an SPI interface to configure and load patterns into the SRAM. A gain adjustment factor and an offset adjustment are applied to the digital signal on their way into the DAC.

The AD9102 provides exceptional AC and DC performance and supports DAC sampling rates of up to 180MSPS. The flexible power supply operating range of 1.8V to 3.3V and low power dissipation of the AD9102 make it ideal for portable and low-power applications.


  • On-chip 4096 × 14-bit pattern memory
  • On-chip DDS
  • Power dissipation @ 3.3V, 4mA output 96.54mW @ 180MSPS
  • <5mW @ 3.3V Sleep mode
  • 1.8V to 3.3V Supply voltage
  • SFDR to Nyquist 87dBc @ 10MHz output
  • Phase noise @ 1kHz offset, 180MSPS, 8mA at −150dBc/Hz
  • 8mA max @ 3.3V Differential current outputs
  • Small footprint, 32-lead, 5mm × 5mm LFCSP with 3.6mm × 3.6mm exposed paddle, and Pb-free package


  • Medical instrumentation
  • Portable instrumentation
  • Signal generators, arbitrary waveform generators
  • Automotive radar

Block Diagram

Block Diagram - Analog Devices Inc. AD9102 TxDAC® & Waveform Generator
Publicado: 2021-06-28 | Atualizado: 2022-03-11