AD9641

RECOMMENDED FOR NEW DESIGNS

14-Bit, 80 MSPS/155 MSPS, 1.8 V Serial Output Analog-to-Digital Converter (ADC)

Data Sheet (Rev. B) Product Selection Table

Part Models: 4
1ku List Price: Starting From $33.83

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Overview

JESD204A coded serial digital outputs
SNR = 73.7 dBFS @70 MHz and 80MSPS
SNR = 72.8 dBFS @70 MHz and 155MSPS
SFDR = 94 dBc @ 70 MHz and 80 MSPS
SFDR = 90 dBc @ 70 MHz and 155 MSPS
Low power: 238 mW @ 80 MSPS 1.8 V supply operation

Low power: 238 mW @ 80 MSPS, 313mW at 155 MSPS
1.8 V supply operation
Integer 1-to-8 input clock divider
IF sampling frequencies to 250 MHz
Please see data sheet for additional features

The AD9641 is a 14-bit, 80 MSPS/155 MSPS analog-to-digital converter (ADC) with a high speed serial output interface. The AD9641 is designed to support communications applications where high performance, combined with low cost, small size, and versatility, is desired. The JESD204A high speed serial interface reduces board routing requirements and lowers pin count requirements for the receiving device.

The ADC core features a multistage, differential pipelined architecture with integrated output error correction logic. The ADC features wide bandwidth, differential sample-and-hold, analog input amplifiers that support a variety of user-selectable input ranges. An integrated voltage reference eases the design considerations. A duty cycle stabilizer (DCS) is provided to compensate for variations in the ADC clock duty cycle, allowing the converter to maintain excellent performance.

The ADC output data is routed directly to the JESD204A serial output port. This output is at CML voltage levels. A CMOS or LVDS synchronization input (DSYNC) is provided.

The flexible power-down options allow significant power savings, when desired.

Programming for setup and control is accomplished using a 3-wire SPI-compatible serial interface.

The AD9641 is available in a 32-lead LFCSP and is specified over the industrial temperature range of −40°C to +85°C.

APPLICATIONS

Communications
Diversity radio systems
Multimode digital receivers (3G and 4G)
GSM, EDGE, W-CDMA, LTE,
CDMA2000, WiMAX, TD-SCDMA
Smart antenna systems
General-purpose software radios
Broadband data applications
Ultrasound equipment

PRODUCT HIGHLIGHTS

An on-chip PLL allows users to provide a single ADC sampling clock. The PLL multiplies the ADC sampling clock to produce the corresponding JESD204A data rate clock.
The configurable JESD204A output block coded data rate supports up to 1.6 Gbps.
A proprietary differential input maintains excellent SNR performance for input frequencies up to 250 MHz.
Operation is from a single 1.8 V power supply.
The standard serial port interface (SPI) supports various product features and functions, such as data formatting (offset binary, twos complement, or gray coding), controlling the clock DCS, power-down, test modes, voltage reference mode, and serial output configuration.

Part Models: 4
1ku List Price: Starting From $33.83

Documentation

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 Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
AD9641BCPZ-155	32-Lead LFCSP (5mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD9641BCPZ-80	32-Lead LFCSP (5mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD9641BCPZRL7-155	32-Lead LFCSP (5mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD9641BCPZRL7-80	32-Lead LFCSP (5mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Hardware Ecosystem

Parts	Product Life Cycle	Description
Clock ICs 6
AD9510	RECOMMENDED FOR NEW DESIGNS	1.2 GHz Clock Distribution IC, PLL Core, Dividers, Delay Adjust, Eight Outputs
AD9511	RECOMMENDED FOR NEW DESIGNS	1.2 GHz Clock Distribution IC, PLL Core, Dividers, Delay Adjust, Five Outputs
AD9512	RECOMMENDED FOR NEW DESIGNS	1.2 GHz Clock Distribution IC, Two 1.6 GHz Inputs, Dividers, Delay Adjust, Five Outputs
AD9513	RECOMMENDED FOR NEW DESIGNS	800 MHz Clock Distribution IC, Dividers, Delay Adjust, Three Outputs

AD9514	RECOMMENDED FOR NEW DESIGNS	1.6 GHz Clock Distribution IC, Dividers, Delay Adjust, Three Outputs
AD9515	RECOMMENDED FOR NEW DESIGNS	1.6 GHz Clock Distribution IC, Dividers, Delay Adjust, Two Outputs
Differential Amplifiers 4
ADA4937-1	RECOMMENDED FOR NEW DESIGNS	Ultralow Distortion Differential ADC Driver (Single)
ADA4938-1	RECOMMENDED FOR NEW DESIGNS	Ultralow Distortion Differential ADC Driver (Single)
ADL5561	RECOMMENDED FOR NEW DESIGNS	2.9 GHz Ultralow Distortion RF/IF Differential Amplifier
ADL5562	RECOMMENDED FOR NEW DESIGNS	3.3 GHz Ultralow Distortion RF/IF Differential Amplifier
Variable Gain Amplifiers (VGA) 2
AD8370	PRODUCTION	750 MHz Digitally Controlled Variable Gain Amplifier
AD8375	PRODUCTION	Ultralow Distortion IF VGA

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.

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S-Parameter 2

ADIsimRF

ADIsimRF is an easy-to-use RF signal chain calculator. Cascaded gain, noise, distortion and power consumption can be calculated, plotted and exported for signal chains with up to 50 stages. ADIsimRF also includes an extensive data base of device models for ADI’s RF and mixed signal components.

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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.

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