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AD7626 16-Bit, 10 MSPS, PulSAR Differential ADC

The AD7626 is a 16-bit, 10 MSPS, charge redistribution successive approximation register (SAR) based architecture analog-to-digital converter (ADC). SAR architecture allows unmatched performance both in noise (91.5 dB SNR) and in linearity (±0.45 LSB INL). The AD7626 contains a high speed, 16-bit sampling ADC, an internal conversion clock, and an internal buffered reference. On the CNV edge, it samples the voltage difference between the IN+ and IN− pins. The voltages on these pins swing in opposite phase between 0 V and REF. The 4.096 V reference voltage, REF, can be generated internally or applied externally.

All converted results are available on a single low voltage differential signaling (LVDS) self clocked or echoed clock serial interface, reducing external hardware connections.

The AD7626 is housed in a 32-lead, 5 mm × 5 mm LFCSP with operation specified from −40°C to +85°C.

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Reference Materials

• Tutorials：MT-002: What the Nyquist Criterion Means to Your Sampled Data System Design
• Tutorials：MT-074: Differential Drivers for Precision ADCs
• Tutorials：MT-031: Grounding Data Converters and Solving the Mystery of "AGND" and "DGND"
• Tutorials：MT-001: Taking the Mystery out of the Infamous Formula, "SNR=6.02N +...
• Product Selection Guide：SAR ADC & Driver Quick-Match Guide
• Customer Case Studies：Analog Devices Retains Domination in Data Converters
• Circuit Notes：CN-0105: Single-Ended-to-Differential High Speed Drive Circuit for 16-Bit,...
• Technical Articles：MS-2210: Designing Power Supplies for High Speed ADC
• Technical Articles：MS-1779: Nine Often Overlooked ADC Specifications