AD9608
10-Bit, 125/105 MSPS, 1.8 V Dual Analog-to-Digital Converter
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Overview
Features and Benefits
- 1.8 V analog supply operation
- 1.8 V CMOS or 1.8 V LVDS output
- SNR = 61.7 dBFS at 70 MHz
- SFDR = 85 dBc at 70 MHz
- Low power: 95 mW/channel at 125 MSPS
- Differential analog input with 650 MHz bandwidth
- IF sampling frequencies to 200 MHz
- On-chip voltage reference and sample-and-hold circuit
- 2 Vp-p differential analog input
- DNL = ±0.13 LSB
- See data sheet for additional features
Product Details
The AD9608 is a monolithic, dual-channel, 1.8 V supply, 10-bit, 105 MSPS/125 MSPS analog-to-digital converter (ADC) that features a high performance sample-and-hold circuit and an on-chip voltage reference.
The product uses multistage differential pipeline architecture with output error correction logic to provide 10-bit accuracy at 125 MSPS data rates and to guarantee no missing codes over the full operating temperature range.
The ADC contains several features designed to maximize flexibility and minimize system cost, such as programmable clock and data alignment and programmable digital test pattern generation. The available digital test patterns include built-in deterministic and pseudorandom patterns, along with custom user-defined test patterns entered via the serial port interface (SPI).
A differential clock input controls all internal conversion cycles. An optional duty cycle stabilizer (DCS) compensates for wide variations in the clock duty cycle while maintaining excellent overall ADC performance.
The digital output data is presented in offset binary, Gray code, or twos complement format. A data output clock (DCO) is provided for each ADC channel to ensure proper latch timing with receiving logic. Logic levels of 1.8 V CMOS and 1.8 V LVDS are supported. Output data can also be multiplexed onto a single output bus.
The AD9608 is available in a 64-lead RoHS-compliant LFCSP and is specified over the industrial temperature range (−40°C to +85°C).
PRODUCT HIGHLIGHTS
- Operates from a single 1.8 V analog power supply and features a separate digital output driver supply to accommodate 1.8 V CMOS or 1.8 V LVDS logic families.
- The patented sample-and-hold circuit maintains excellent performance for input frequencies up to 200 MHz and is designed for low cost, low power, and ease of use.
- Includes a standard serial port interface that supports various product features and functions, such as data output format-ting, internal clock divider, power-down, DCO/data timing, and offset adjustments.
- Packaged in a 64-lead, RoHS-compliant LFCSP that is pin compatible with the AD9650, AD9269 and AD9268 16-bit ADC’s, the AD9258 and AD9648 14-bit ADC, the AD9628 and AD9231 12-bit ADC’s, and the AD9204 10-bit ADC’s, enabling a simple migration path between 10-bit and 16-bit converters sampling from 20 MSPS to 125 MSPS.
APPLICATIONS
- Communications
- Diversity radio systems
- I/Q demodulation systems
- Broadband data applications
- Battery-powered instruments
- Hand held scope meters
- Portable medical imaging
- Ultrasound
Product Categories
Markets and Technologies
Product Lifecycle
Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
Evaluation Kits (2)
Documentation & Resources
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AN-905: VisualAnalog™ Converter Evaluation Tool Version 1.0 User Manual8/18/2020
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AN-878: High Speed ADC SPI Control Software (Rev. A)3/20/2018
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AN-835: Understanding High Speed ADC Testing and Evaluation (Rev. B)5/12/2015
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AN-282: Fundamentals of Sampled Data Systems2/14/2015
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AN-756: Sampled Systems and the Effects of Clock Phase Noise and Jitter (Rev. 0)2/14/2015
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AN-827: A Resonant Approach to Interfacing Amplifiers to Switched-Capacitor ADCs (Rev. 0)2/14/2015
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AN-935: Designing an ADC Transformer-Coupled Front End (Rev. 0)2/14/2015
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AN-742: Frequency Domain Response of Switched-Capacitor ADCs (Rev. C)2/14/2015
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AN-1142: Techniques for High Speed ADC PCB Layout (Rev. 0)2/2/2012
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AN-737: How ADIsimADC Models an ADC (Rev. B)11/9/2007
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AN-807: Multicarrier WCDMA Feasibility (Rev. 0)11/9/2007
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AN-808: Multicarrier CDMA2000 Feasibility (Rev. 0)11/9/2007
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AN-803: Pin Compatible High Speed ADCs Simplify Design Tasks (Rev. 0)11/29/2006
Tools & Simulations
MathWorks®
S-Parameters
Design Tools
Visual Analog
For designers who are selecting or evaluating high speed ADCs, VisualAnalog™ is a software package that combines a powerful set of simulation and data analysis tools with a user-friendly graphical interface.
Product Recommendations
AD9608 Companion Parts
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.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 |
|---|---|---|---|---|
| AD9608BCPZ-105 | Material Declaration | Reliability Data | 64-Lead LFCSP (9mm x 9mm w/ EP) | |
| AD9608BCPZ-125 | Material Declaration | Reliability Data | 64-Lead LFCSP (9mm x 9mm w/ EP) | |
| AD9608BCPZRL7-105 | Material Declaration | Reliability Data | 64-Lead LFCSP (9mm x 9mm w/ EP) | |
| AD9608BCPZRL7-125 | Material Declaration | Reliability Data | 64-Lead LFCSP (9mm x 9mm w/ EP) | |
| Wafer Fabrication Data |
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Sample & Buy
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Evaluation Boards
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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.