AD9649BCPZ-20

The AD9649BCPZ-20 is a 14-bit, 20 MSPS analog-to-digital converter (ADC) manufactured by Analog Devices. It employs a pipelined architecture to achieve high-speed conversion with a single 1.8 V analog supply. The device offers excellent dynamic performance with a typical signal-to-noise ratio (SNR) of 74.3 dBFS at 9.7 MHz input and a spurious-free dynamic range (SFDR) of 93 dBc. Power dissipation is only 45 mW at 20 MSPS, making it suitable for power-sensitive applications.

The ADC accepts differential or single-ended analog inputs with a 2 V p-p full-scale range and features an input bandwidth of 700 MHz. It includes an on-chip voltage reference and sample-and-hold circuit. The digital output is available in parallel CMOS format with offset binary, gray code, or twos complement data coding. The device also supports external and internal reference options, a clock duty cycle stabilizer, and an integer clock divider.

The AD9649BCPZ-20 is housed in a compact 32-lead LFCSP-VQ package (5 mm × 5 mm) with an exposed pad for thermal management. It operates over the industrial temperature range of -40°C to +85°C and is RoHS3 compliant. Typical applications include communications receivers, multimode digital radios, battery-powered instruments, and portable medical imaging equipment.