AD9236: 12Bit, 80 MSPS 3 V A/D Converter Data Sheet (Rev. C)10/25/20021307 kB
Features and Benefits
- Single 3 V Supply Operation (2.7 V to 3.6 V)
- SNR = 70.4 dBc to Nyquist
- SFDR = 87.8 dBc to Nyquist
- Low Power: 366 mW at 80 MSPS
- Differential Input with 500 MHz Bandwidth
- On-Chip Reference and SHA
- DNL = ±0.4 LSB
- Flexible Analog Input: 1 Vp-p to 2 Vp-p Range
- Offset Binary or Twos Complement Data Format
- Clock Duty Cycle Stabilizer
The AD9236 is a monolithic, single 3V supply, 12-bit, 80 MSPS analog-to-digital converter with a high performance sample-and-hold (SHA) amplifier and voltage reference. The AD9236 uses a multi-stage differential pipelined architecture with output error correction logic to provide 12-bit accuracy at 80 MSPS data rates and guarantee no missing codes over the full operating temperature range.
The wide bandwidth, truly differential SHA allows for a variety of user-selectable input ranges and offsets including single-ended applications. It is suitable for multiplexed systems that switch full-scale voltage levels in successive channels and for sampling single-channel inputs at frequencies well beyond the Nyquist rate. With power savings over previously available ADCs, the AD9236 is suitable for applications in communications, imaging, and medical ultrasound.
A single-ended clock input is used to control all internal conversion cycles. A duty cycle stabilizer (DCS) compensates for wide variations in the clock duty cycle while maintaining excellent performance. The digital output data is presented in straight binary or twos complement formats. An out-of-range (OTR) signal indicates an overflow condition, which can be used with the most significant bit to determine low or high overflow.
Fabricated on an advanced CMOS process, the AD9236 is available in a 28-lead TSSOP and a 32-lead LFCSP and is specified over the industrial temperature range (-40°C to +85°C).
- High end medical imaging equipment
- IF sampling in communications receivers
- Battery-powered instruments
- Hand-held scopemeters
- Low cost digital oscilloscopes
- DTV subsystems
- The AD9236 operates from a single 3 V power supply and features a separate digital output driver supply to accommodate 2.5 V and 3.3 V logic families.
- Operating at 80 MSPS, the AD9236 consumes a low 366 mW.
- The patented SHA input maintains excellent performance for input frequencies up to 100 MHz, and can be configured for single-ended or differential operation.
- The AD9236 is pin compatible with the AD9215, AD9235, and AD9245. This allows a simplified migration from 10 bits to 14 bits and 20 MSPS to 80 MSPS.
- The DCS maintains overall ADC performance over a wide range of clock pulse widths. 6. The OTR output bit indicates when the signal is beyond the selected input range.
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.
Documentation & Resources
AN-905: VisualAnalog™ Converter Evaluation Tool Version 1.0 User Manual8/18/2020
AN-835: Understanding High Speed ADC Testing and Evaluation (Rev. B)5/12/2015985 kB
AN-501: Aperture Uncertainty and ADC System Performance (Rev. A)2/14/2015227 K
AN-282: Fundamentals of Sampled Data Systems2/14/20152131 kB
AN-756: Sampled Systems and the Effects of Clock Phase Noise and Jitter (Rev. 0)2/14/2015291K
AN-827: A Resonant Approach to Interfacing Amplifiers to Switched-Capacitor ADCs (Rev. 0)2/14/2015203 kB
AN-935: Designing an ADC Transformer-Coupled Front End (Rev. 0)2/14/2015363 kB
AN-742: Frequency Domain Response of Switched-Capacitor ADCs (Rev. C)2/14/2015427 K
AN-345: Grounding for Low-and-High-Frequency Circuits2/14/2015455 kB
AN-1142: Techniques for High Speed ADC PCB Layout (Rev. 0)2/2/2012392 kB
AN-737: How ADIsimADC Models an ADC (Rev. B)11/9/2007373 kB
AN-807: Multicarrier WCDMA Feasibility (Rev. 0)11/9/2007969 kB
AN-808: Multicarrier CDMA2000 Feasibility (Rev. 0)11/9/20071535 kB
AN-803: Pin Compatible High Speed ADCs Simplify Design Tasks (Rev. 0)11/29/2006356 kB
AN-715: A First Approach to IBIS Models: What They Are and How They Are Generated (Rev. 0)12/14/2004370K
AN-741: Little Known Characteristics of Phase Noise (Rev. 0)11/29/20041679 kB
Designing Power Supplies for High Speed ADC2/1/2012
Matching An ADC To A Transformer7/13/2007
Ask The Application Engineer—36: Wideband A/D Converter Front-End Design Considerations II: Amplifier-or Transformer Drive for the ADC?2/1/2007 Analog Dialogue
Transformer-Coupled Front-End for Wideband A/D Converters4/1/2005 Analog Dialogue
Correlating High-Speed ADC Performance to Multicarrier 3G Requirements6/1/2003
Tools & Simulations
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AD9236 IBIS Models
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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.View our quality and reliability program and certifications for more information.
|Part Number||Material Declaration||Reliability Data||Pin/Package Drawing||CAD Symbols, Footprints & 3D Models|
|AD9236BCPZ-80||Material Declaration||Reliability Data||32-Lead LFCSP (5mm x 5mm)|
|AD9236BCPZRL7-80||Material Declaration||Reliability Data||32-Lead LFCSP (5mm x 5mm)|
|AD9236BRUZ-80||Material Declaration||Reliability Data||28-Lead TSSOP (4.4mm x 9.7mm)|
|AD9236BRUZRL7-80||Material Declaration||Reliability Data||28-Lead TSSOP (4.4mm x 9.7mm)|
|Wafer Fabrication Data|
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