ADI continues to push the boundary of analog front end chips in def/aero

Analog Devices (ADI) unveiled a new 14-bit, 2.6 GSPS dual A/D converter AD9689 for IF/RF sampling, where the ADC consumes power of 1.55 W per channel, nearly half less than some of the similar ADCs in the advanced instrumentation and defence market. ADI also introduced two related converters: the AD9695, a dual 14-bit 1300/625 MSPS device, and the AD9697, a single 14-bit, 1300-MSPS unit. Both are lower-power, pin-compatible upgrades for existing devices. All three A/D converters include JESD204B interfaces for efficient and highest-speed interconnection to FPGAs, and share the same register map, so they can be used across multiple platforms with minimal coding efforts. Since many system architectures require complementary signal-transmission channels, Analog Devices also offers the AD9172 and AD9162 DACs as counterparts to the AD9689 and AD9695. AD9689 features full-speed spur free dynamic range (SFDR) of 64 dB full scale for a 3-GHz analog input. Other features of this converter include user-programmable FIR filters which allow users to perform quadratic error correction and equalization for optimized performance, and an analog input bandwidth of 9 GHz in the BGA-packaged version to allow for RF sampling up to and beyond the 4th Nyquist zone. The AD9689 A/D converter's JESD204B interface supports 16 GBPS/lane performance, which exceeds the 12.5 GBPS/lane requirement o...