AD9224 Datasheet | Analog Devices

FEATURES Monolithic 12-Bit, 40 MSPS A/D Converter Low Power Dissipation: 415 m W Single +5 V Supply No Missing Codes Guaranteed Differential Nonlinearity Error: ؎0.33 LSB plete On-Chip Sample-and-Hold Amplifier and Voltage Reference Signal-to-Noise and Distortion Ratio: 68.3 d B Spurious-Free Dynamic Range: 81 d B Out-of-Range Indicator Straight Binary Output Data 28-Lead SSOP Package patible with 3 V Logic plete 12-Bit, 40 MSPS Monolithic A/D Converter FUNCTIONAL BLOCK DIAGRAM AVDD DRVDD VINA VINB MDAC1 GAIN = 16 MDAC2 GAIN = 4 MDAC3 GAIN = 4 5 A/D 3 A/D 3 A/D A/D CAPT 5 3 3 4 CAPB DIGITAL CORRECTION LOGIC VREF 12 OUTPUT BUFFERS SENSE MODE SELECT 1V BIT 1 (MSB) BIT 12 (LSB) AVSS DRVSS PRODUCT DESCRIPTION The AD9224 is a monolithic, single supply, 12-bit, 40 MSPS, analog-to-digital converter with an on-chip, high performance sample-and-hold amplifier and voltage reference. The AD9224 uses a multistage differential pipelined architecture with output error correction logic to provide 12-bit accuracy at 40 MSPS data rates, and guarantees no missing codes over the full operating temperature range. The AD9224 bines a low cost high speed CMOS process and a novel architecture to achieve the resolution and speed of existing bipolar implementations at a fraction of the power consumption and cost. The input of the AD9224 allows for easy interfacing to both imaging and munications systems. With a truly differential input structure, the user can select a variety of input ranges and offsets, including single-ended applications. The dynamic performance is excellent. The sample-and-hold (SHA) amplifier is well suited for both multiplexed systems that switch full-scale voltage levels in successive channels and sampling single-channel inputs at frequencies up to and well beyond the Nyquist rate. The AD9224’s wideband input, bined with the power and cost savings over previously available monolithics, is suitable for...