AD9244BSTZ-40

The AD9244 is a monolithic, single 5 V supply, 14-bit, 40 MSPS/65 MSPS ADC with an on-chip, high performance sample-and-hold amplifier (SHA) and voltage reference. The AD9244 uses a multistage differential pipelined architecture with output error correction logic to provide 14-bit accuracy at 40 MSPS/65 MSPS data rates, and guarantees no missing codes over the full operating temperature range. The AD9244 has an on-board, programmable voltage reference. An external reference can also be used to suit the dc accuracy and temperature drift requirements of the application. A differential or single-ended clock input controls all internal conversion cycles. The digital output data can be presented in straight binary or in twos complement format. An out-of-range (OTR) signal indicates an overflow condition that can be used with the most significant bit to determine low or high overflow.

Applications

• Communication subsystems (microcell, picocell)
• Medical and high-end imaging equipment
• Test and measurement equipment

Key features

• 14-bit, 40 MSPS/65 MSPS ADC
• Low power 550 mW at 65 MSPS 300 mW at 40 MSPS
• On-chip reference and sample-and-hold
• 750 MHz analog input bandwidth
• SNR > 73 dBc to Nyquist @ 65 MSPS
• SFDR > 86 dBc to Nyquist @ 65 MSPS
• Differential nonlinearity error = ±0.7 LSB
• Guaranteed no missing codes over full temperature range
• 1 V to 2 V p-p differential full-scale analog input range
• Single 5 V analog supply, 3.3 V/5 V driver supply
• Out-of-range indicator
• Straight binary or twos complement output data
• Clock duty cycle stabilizer
• Output-enable function
• 48-lead LQFP package