Electronic Surveillance and Countermeasures
Interactive Signal Chains
The third-order Butterworth antialiasing filter is optimized based on the performance and interface requirements of the amplifier and ADC. The total insertion loss due to the filter network and other components is only 1.8 dB.
The overall circuit has a bandwidth of 152 MHz with a pass band flatness of 1 dB. The SNR and SFDR measured with a 120 MHz analog input are 72.6 dBFS and 82.2 dBc, respectively.
Figure 1. 16-Bit, 250 MSPS Wideband Receiver Front End (Simplified Schematic: All Connections and Decoupling Not Shown) Gains, Losses, and Signal Levels Measured Values at 10 MHz
- Wireless Infrastructure
Product Selection Guide
Solutions Bulletins & Brochures
- AN-835: Understanding High Speed ADC Testing and Evaluation (Rev. B) PDF
- AN-827: A Resonant Approach to Interfacing Amplifiers to Switched-Capacitor ADCs (Rev. 0) PDF
- AN-935: Designing an ADC Transformer-Coupled Front End (Rev. 0) PDF
- AN-742: Frequency Domain Response of Switched-Capacitor ADCs (Rev. B) PDF
Three Ways to Stay Connected
Contact the ADI Sales Team
EZ Support Community
Subscribe to an eNewsletter