AD9260

High Speed Oversampling CMOS ADC with 16-Bit Resolution at a 2.5 MHz Output Word Rate AD9260 FEATURES Monolithic 16-bit, oversampled A/D converter 8× oversampling mode, 20 MSPS clock 2.5 MHz output word rate 1.01 MHz signal passband with 0.004 dB ripple Signal-to-noise ratio: 88.5 dB Total harmonic distortion: –96 dB Spurious-free dynamic range: 100 dB Input referred noise: 0.6 LSB Selectable oversampling ratio: 1×, 2×, 4×, 8× Selectable power dissipation: 150 mW to 585 mW 85 dB stop-band attenuation 0.004 dB pass-band ripple Linear phase Single 5 V analog supply, 5 V/3 V digital supply Synchronize capability for parallel ADC interface Twos complement output data 44-lead MQFP PRODUCT DESCRIPTION The AD9260 is a 16-bit, high-speed oversampled analog-todigital converter (ADC) that offers exceptional dynamic range over a wide bandwidth. The AD9260 is manufactured on an advanced CMOS process. High dynamic range is achieved with an oversampling ratio of 8× through the use of a proprietary technique that combines the advantages of sigma-delta and pipeline converter technologies. The AD9260 is a switchedcapacitor ADC with a nominal full-scale input range of 4 V. It offers a differential input with 60 dB of common-mode rejection of common-mode signals. The signal range of each differential input is ±1 V centered on a 2.0 V common-mode level. The on-chip decimation filter is configured for maximum performance and flexibility. A series of three half-band FIR filter stages provide 8× d...