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AD7626: 16-Bit, 10 MSPS, PulSAR Differential ADC Data Sheet (Rev. D)6/28/2008PDF962 K
Overview
Features and Benefits
- Throughput: 10 MSPS
- SNR: 91.5 dB
- 16-bit no missing codes
- INL: ±0.45 LSB
- DNL: ±0.35 LSB
- Power dissipation: 136 mW
- 32-lead LFCSP (5 mm × 5 mm)
- SAR architecture
- No latency/pipeline delay
- 16-bit resolution with no missing codes
- Zero error: ±1 LSB
- Differential input range: ±4.096 V
- See data sheet for additional features
Product Details
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.
Applications
- Digital imaging systems
– Digital X-ray
– Digital MRI
– CCD and IR cameras - High speed data acquisition
- High dynamic range telecommunications receivers
- Spectrum analysis
- Test equipment
Product Categories
Markets and Technologies
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
Documentation & Resources
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AN-1575: Single-Ended to Differential High Speed Drive Circuit for the AD7626 16-Bit, 10 MSPS ADC (Rev. A)1/14/2019PDF319 K
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AN-742: Frequency Domain Response of Switched-Capacitor ADCs (Rev. C)2/14/2015PDF427 K
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AN-931: Understanding PulSAR ADC Support Circuitry (Rev. 0)2/14/2015PDF299 kB
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The Data Conversion Handbook, 20051/2/2005
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MT-002: What the Nyquist Criterion Means to Your Sampled Data System Design2/14/2015PDF152 kB
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MT-074: Differential Drivers for Precision ADCs2/14/2015PDF249 kB
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MT-031: Grounding Data Converters and Solving the Mystery of "AGND" and "DGND"3/20/2009PDF144 kB
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MT-001: Taking the Mystery out of the Infamous Formula, "SNR=6.02N + 1.76dB", and Why You Should Care3/4/2009PDF94 kB
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SAR ADC & Driver Quick-Match Guide9/13/2013PDF251 kB
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AD7626: 16-BIT, 10-MSPS SAR Converter11/28/2018
Tools & Simulations
Precision ADC Driver Tool
The Precision ADC Driver Tool is a web application that simulates the performance of precision ADC and driver combinations. Potential issues with driver selection, kickback settling, and distortion are flagged, and design tradeoffs can be quickly evaluated. Simulations and calculations include system noise, distortion, and settling of the ADC input
IBIS Models
IBS
AD7625/AD7626 IBIS Model
49.19 K
Reference Designs (1)
Product Recommendations
AD7626 Companion Parts
Recommended External Voltage References
- For low drift, low noise and low dropout: ADR444, ADR4540.
- For an external CMV buffer amplifier: AD8031, AD8655.
- For low drift, low noise, low power: ADR4550, ADR3440.
- For low noise, high current output, low drift: ADR280, ADR3412.
- For low drift, low noise and high current output applications: ADR434.
Recommended Driver Amplifiers
Recommended Drivers and Receivers
- For a dual LVDS line driver: ADN4663.
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
PCN-PDN Information
Support & Discussions
AD7626 Discussions
Sample & Buy
See our Ordering FAQs for answers to questions about online orders, payment options and more.
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Sampling:
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Evaluation Boards
Pricing displayed is based on 1-piece.
Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.