8-Bit, 250 MSPS, 1.8 V Dual Analog-to-Digital Converter (ADC)

The AD9284 is a dual 8-bit, monolithic sampling, analog-to-digital converter (ADC) that supports simultaneous operation and is optimized for low cost, low power, and ease of use. Each ADC operates at up to a 250 MSPS conversion rate with outstanding dynamic performance.

The ADC requires a single 1.8 V supply and an encode clock for full performance operation. No external reference components are required for many applications. The digital outputs are LVDS compatible.

The AD9284 is available in a Pb-free, 48-lead LFCSP that is specified over the industrial temperature range of −40°C to +85°C.

PRODUCT HIGHLIGHTS

* Integrated dual 8-bit , 250 MSPS ADC.

* Single 1.8 V supply operation with LVDS outputs.

* Power-down option that is controlled through a pin programmable setting.

APPLICATIONS

* Communications

* Diversity radio systems

* I/Q demodulation systems

* Battery-powered instruments

* Handheld scope meters

* Low cost digital oscilloscopes

* OTS: video over fiber

* Single 1.8 V supply operation

* SNR: 49.3 dBFS at 200 MHz input at 250 MSPS

* SFDR: 65 dBc at 200 MHz input at 250 MSPS

* Low power: 314 mW at 250 MSPS

* On-chip reference and track-and-hold

* 1.2 V p-p analog input range each channel

* Differential input with 500 MHz bandwidth