| PRODUCT DESCRIPTION The AD9221, AD9223, and AD9220 are a generation of high performance, single supply 12-bit analog-to-digital converters. Each device exhibits true 12-bit linearity and temperature drift performance1 as well as 11.5 bit or better ac performance.2 The AD9221/AD9223/AD9220 share the same interface options, package, and pinout. Thus, the product family provides an upward or downward component selection path based on performance, sample rate and power. The devices differ with respect to their specified sampling rate and power consumption which is reflected in their dynamic performance over frequency. The AD9221/AD9223/AD9220 combine a low cost, high speed CMOS process and a novel architecture to achieve the resolution and speed of existing hybrid and monolithic implementations at a fraction of the power consumption and cost. Each device is a complete, monolithic ADC with an on-chip, high performance, low noise sample-and-hold amplifier and programmable voltage reference. An external reference can also be chosen to suit the dc accuracy and temperature drift requirements of the application. The devices use a multistage differential pipelined architecture with digital output error correction logic to provide 12-bit accuracy at the specified data rates and to guarantee no missing codes over the full operating temperature range. FEATURES Monolithic 12-Bit A/D Converter Product Family Family Members Are: AD9221, AD9223, and AD9220 Flexible Sampling Rates: 1.5 MSPS, 3.0 MSPS and 10.0 MSPS Low Power Dissipation: 59 mW, 100 mW and 250 mW Single +5 V Supply Integral Nonlinearity Error: 0.5 LSB Differential Nonlinearity Error: 0.3 LSB Input Referred Noise: 0.09 LSB Complete: On-Chip Sample-and-Hold Amplifier and Voltage Reference Signal-to-Noise and Distortion Ratio: 70 dB Spurious-Free Dynamic Range: 86 dB Out-of-Range Indicator Straight Binary Output Data 28-Lead SOIC and 28-Lead SSOP |
