AD9608/28/48 10-14-bit ADCs

By Analog Devices Inc 191

AD9608/28/48 10-14-bit ADCs

ADI's AD9608/28/48 is a monolithic, dual-channel, 1.8 V supply, 10-14-bit, 105 MSPS/125 MSPS analog-to-digital converter (ADC). It features a high performance sample-and-hold circuit and on-chip voltage reference. The product uses multistage differential pipeline architecture with output error correction logic to provide 14-bit accuracy at 125 MSPS data rates and to guarantee no missing codes over the full operating temperature range.

The ADC contains several features designed to maximize flexibility and minimize system cost, such as programmable clock and data alignment, and programmable digital test pattern generation. The available digital test patterns include built-in deterministic and pseudorandom patterns, along with custom user-defined test patterns entered via the serial port interface (SPI).

A differential clock input controls all internal conversion cycles. An optional duty cycle stabilizer (DCS) compensates for wide variations in the clock duty cycle while maintaining excellent overall ADC performance.

  • 1.8 V analog supply operation
  • 1.8 V CMOS or LVDS outputs
  • On-chip voltage reference and sample-and-hold circuit
  • Low power: 78 mW/channel ADC core at 125 MSPS
  • Differential analog input with 650 MHz bandwidth
  • SNR = 74.5 dBFS at 70 MHz
  • SFDR = 91 dBc at 70 MHz
  • IF sampling frequencies to 200 MHz
  • 2 V p-p differential analog input
  • DNL = ±0.35 LSB