12-Bit 65 MSPS Dual A/D Converter
Rochester Electronics is the only authorized source of Analog Devices' products that have previously been discontinued or have become obsolete. Product availability should be checked directly with Rochester Electronics.
The AD15252 is a dual, 12-bit, 65MSPS, analog-to-digital converter(ADC). It features a differential front-end amplification circuit followed by a sample-and-hold amplifier and multistage pipeline ADC. It is designed to operate with a +3.3 V analog supply and +2.5 V/+3.3 V digital supply. Each input is fully differential, ac-coupled, and terminated in 100 Ω input impedances. The full-scale differential signal input range is 296 mV p-p.
Two parallel 12-bit digital output buses provide data flow from the ADCs. The digital output data is presented in either straight binary or two’s complement format. Out-of-range (OTR) signals indicate an overflow condition, which can be used with the most significant bit to determine low or high overflow. Dual single-ended clock inputs control all internal conversion cycles. A duty cycle stabilizer is present allowing for wide variations in the clock duty cycle while maintaining excellent performance. The AD15252 is optimized for applications in anti-jam global positioning receivers and well suited for communicationsapplications.