AD9220AR

The AD9220AR from Analog Devices is a high-performance, single-supply 12-bit analog-to-digital converter. This monolithic device family includes members with flexible sampling rates of 1.5 MSPS, 3.0 MSPS, and 10.0 MSPS, with the AD9220AR reaching up to 10 MSPS. It boasts true 12-bit linearity and temperature drift performance, along with 11.5-bit or better AC performance.

Key electrical specifications include an integral nonlinearity error of 0.5 LSB, a differential nonlinearity error of 0.3 LSB, and input-referred noise of 0.09 LSB. The device achieves a signal-to-noise and distortion ratio of 70 dB and a spurious-free dynamic range of 86 dB. It operates from a single 5 V supply and offers low power dissipation, with the AD9220AR consuming up to 250 mW.

The AD9220AR integrates a low-noise sample-and-hold amplifier and a programmable voltage reference on-chip, though an external reference can also be used. It employs a multistage differential pipelined architecture with digital output error correction logic to guarantee 12-bit accuracy and no missing codes over the full operating temperature range. The input is highly flexible, allowing for easy interfacing in various applications.

Available in 28-lead SOIC and 28-lead SSOP packages, the AD9220AR is suitable for designs requiring high-speed, high-resolution analog-to-digital conversion with minimal power consumption.