Overview
Features and Benefits
- 1.8 V analog supply operation
- 1.8 V to 3.3 V output supply
- SNR = 71.7 dBc (72.7 dBFS) to 70 MHz input
- SFDR = 85 dBc to 70 MHz input
- Low power: 395 mW @ 125 MSPS
- Differential input with 650 MHz bandwidth
- On-chip voltage reference and sample-and-hold amplifier
- DNL = ±0.4 LSB
- Flexible analog input: 1 V p-p to 2 V p-p range
- Offset binary, Gray code, or twos complement data format
- Data output clock and clock duty cycle stabilizer
- Serial port control
- Built-in selectable digital test pattern generation
- Programmable clock and data alignment
Product Details
The AD9246 is a monolithic, single 1.8 V supply, 14-bit, 80 MSPS/ 105 MSPS/125 MSPS analog-to-digital converter (ADC), featuring a high performance sample-and-hold amplifier (SHA) and on-chip voltage reference. The product uses a multistage differential pipeline architecture with output error correction logic to provide 14-bit accuracy at 125 MSPS data rates and guarantees no missing codes over the full operating temperature range.
The wide bandwidth, truly differential SHA allows 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. Combined with power and cost savings over previously available ADCs, the AD9246 is suitable for applications in communications, imaging, and medical ultrasound.
A differential clock input controls all internal conversion cycles. A 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 formats. A data output clock (DCO) is provided to ensure proper latch timing with receiving logic.
The AD9246 is available in a 48-lead LFCSP_VQ and is specified over the industrial temperature range (−40°C to +85°C).
PRODUCT HIGHLIGHTS
- The AD9246 operates from a single 1.8 V power supply and features a separate digital output driver supply to accommodate 1.8 V to 3.3 V logic families.
- The patented SHA input maintains excellent performance for input frequencies up to 225 MHz.
- The clock DCS maintains overall ADC performance over a wide range of clock pulse widths.
- A standard serial port interface supports various product features and functions, such as data formatting (offset binary, twos complement, or Gray coding), enabling the clock DCS, power-down, and voltage reference mode.
- The AD9246 is pin-compatible with the AD9233, allowing a simple migration from 12 bits to 14 bits.
APPLICATIONS
- Ultrasound equipment
- IF sampling in communications receivers
- IS-95, CDMA-One, IMT-2000
- Battery-powered instruments
- Hand-held scopemeters
- Low cost digital oscilloscopes
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
-
AN-905: VisualAnalog™ Converter Evaluation Tool Version 1.0 User Manual8/18/2020
-
AN-878: High Speed ADC SPI Control Software (Rev. A)3/20/2018PDF585 kB
-
AN-1508: Driving the AD9233, AD9246, and AD9254 ADCs in AC-Coupled Baseband Applications (Rev. B)11/17/2017PDF154 K
-
AN-1408: Using the AD8376 VGA to Drive Wide Bandwidth ADCs for High IF AC-Coupled Applications (Rev. B)7/22/2016PDF140 K
-
AN-835: Understanding High Speed ADC Testing and Evaluation (Rev. B)5/12/2015PDF985 kB
-
AN-501: Aperture Uncertainty and ADC System Performance (Rev. A)2/14/2015PDF227 K
-
AN-282: Fundamentals of Sampled Data Systems2/14/2015PDF2131 kB
-
AN-756: Sampled Systems and the Effects of Clock Phase Noise and Jitter (Rev. 0)2/14/2015PDF291K
-
AN-827: A Resonant Approach to Interfacing Amplifiers to Switched-Capacitor ADCs (Rev. 0)2/14/2015PDF203 kB
-
AN-935: Designing an ADC Transformer-Coupled Front End (Rev. 0)2/14/2015PDF363 kB
-
AN-742: Frequency Domain Response of Switched-Capacitor ADCs (Rev. C)2/14/2015PDF427 K
-
AN-345: Grounding for Low-and-High-Frequency Circuits2/14/2015PDF455 kB
-
AN-1142: Techniques for High Speed ADC PCB Layout (Rev. 0)2/2/2012PDF392 kB
-
AN-737: How ADIsimADC Models an ADC (Rev. B)11/9/2007PDF373 kB
-
AN-807: Multicarrier WCDMA Feasibility (Rev. 0)11/9/2007PDF969 kB
-
AN-808: Multicarrier CDMA2000 Feasibility (Rev. 0)11/9/2007PDF1535 kB
-
AN-812: MicroController-Based Serial Port Interface (SPI) Boot Circuit (Rev. 0)9/20/2006PDF441 kB
-
• Software Download (zip, 21,702,560 bytes)
-
AN-851: A WiMax Double Downconversion IF Sampling Receiver Design (Rev. 0)7/26/2006PDF262 kB
-
AN-715: A First Approach to IBIS Models: What They Are and How They Are Generated (Rev. 0)12/14/2004PDF370K
-
AN-741: Little Known Characteristics of Phase Noise (Rev. 0)11/29/2004PDF1679 kB
-
CN-0051: Driving the AD9233/9246/9254 ADCs in AC-Coupled Baseband Applications9/20/2010PDF111 kB
-
Designing Power Supplies for High Speed ADC2/1/2012
-
Improve The Design Of Your Passive Wideband ADC Front-End Network3/26/2010
-
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
Tools & Simulations
Virtual Eval - BETA
Virtual Eval is a web application to assist designers in product evaluation of ADCs, DACs, and other ADI products. Using detailed models on Analog’s servers, Virtual Eval simulates crucial part performance characteristics within seconds. Configure operating conditions such as input tones and external jitter, as well as device features like gain or digital down-conversion. Performance characteristics include noise, distortion, and resolution, FFTs, timing diagrams, response plots, and more.
MathWorks®
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
AD9246 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 |
|---|---|---|---|---|
| AD9246BCPZ-105 | Material Declaration | Reliability Data | 48-Lead LFCSP (7mm x 7mm w/ EP) | |
| AD9246BCPZ-125 | Material Declaration | Reliability Data | 48-Lead LFCSP (7mm x 7mm w/ EP) | |
| AD9246BCPZ-80 | Material Declaration | Reliability Data | 48-Lead LFCSP (7mm x 7mm w/ EP) | |
| AD9246BCPZRL7-105 | Material Declaration | Reliability Data | 48-Lead LFCSP (7mm x 7mm w/ EP) | |
| AD9246BCPZRL7-125 | Material Declaration | Reliability Data | 48-Lead LFCSP (7mm x 7mm w/ EP) | |
| AD9246BCPZRL7-80 | Material Declaration | Reliability Data | 48-Lead LFCSP (7mm x 7mm w/ EP) | |
| Wafer Fabrication Data |
PCN-PDN Information
Select a model from the dropdown below to subscribe to PCN/PDN notifications and view past notifications as well.
Support & Discussions
AD9246 Discussions
Sample & Buy
Ordering FAQs
See our Ordering FAQs for answers to questions about online orders, payment options and more.
Buy Now Pricing
(**) Displayed Buy Now Price and Price Range is based on small quantity orders.
List Pricing
(*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
Lead Times
Please see the latest communication from our CCO regarding lead times.
Sampling
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.