AD9245

PRODUCTION

14-Bit, 20 MSPS/40 MSPS/65 MSPS/80 MSPS 3 V A/D Converter

Data Sheet (Rev. E) Product Selection Table

Part Models: 7
1ku List Price: Starting From $16.02

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Overview

Single 3 V supply operation (2.7 V to 3.6 V)
Low power
366 mW at 80 MSPS
300 mW at 65 MSPS
165 mW at 40 MSPS
90 mW at 20 MSPS

SNR = 72.7 dBc to Nyquist at 80 MSPS
SFDR = 83.0 dBc to Nyquist at 80 MSPS
Differential input with 500 MHz bandwidth
On-chip reference and sample-and-hold
DNL = ±0.5 LSB at 80 MSPS
See datasheet for additional features

The AD9245 is a monolithic, single 3 V supply, 14-bit, 20 MSPS/40 MSPS/65 MSPS/80 MSPS analog-to-digital (ADC) converter featuring a high performance sample-and-hold amplifier (SHA) and voltage reference. The AD9245 uses a multistage differential pipelined architecture with output error correction logic to provide 14-bit accuracy and guarantee no missing codes over the full operating temperature range.

The wide bandwidth, truly differential SHA allows a variety of user-selectable input ranges and common modes, 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 analog-to-digital converters, the AD9245 is suitable for applications in communications, imaging, and medical ultrasound.

A single-ended clock input is used to control all internal con-version 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 straight binary or twos complement formats. An out-of-range (OTR) signal indicates an overflow condition that can be used with the most significant bit to determine low or high overflow. Fabricated on an advanced CMOS process, the AD9245 is available in a 32-lead LFCSP and is specified over the industrial temperature range (–40°C to +85°C).

PRODUCT HIGHLIGHTS

The AD9245 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.
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 AD9245 is pin-compatible with the AD9215, AD9235, and AD9236. This allows a simplified migration from 10 bits to 14 bits and 20 MSPS to 80 MSPS.
The clock DCS maintains overall ADC performance over a wide range of clock pulse widths.
The OTR output bit indicates when the signal is beyond the selected input range.

APPLICATIONS

Medical imaging equipment
IF sampling in communications receivers
WCDMA, CDMA-One, CDMA-2000, and TDS-CDMA
Battery-powered instruments
Hand-held scopemeters
Spectrum analyzers
Power-sensitive military applications

Part Models: 7
1ku List Price: Starting From $16.02

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
AD9245BCPZ-20	32-Lead LFCSP (5mm x 5mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD9245BCPZ-40	32-Lead LFCSP (5mm x 5mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD9245BCPZ-65	32-Lead LFCSP (5mm x 5mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD9245BCPZ-80	32-Lead LFCSP (5mm x 5mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD9245BCPZRL7-20	32-Lead LFCSP (5mm x 5mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD9245BCPZRL7-40	32-Lead LFCSP (5mm x 5mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD9245BCPZRL7-80	32-Lead LFCSP (5mm x 5mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Mar 23, 2012 - 11_0104 Conversion of Select Sizes of LFCSP Package Outlines from Punch to Sawn and Transfer of Assembly Site to ASE-Korea.
		PCN11_0104_Form Material_Report Qualification Report Summary Detailed Change Description Detailed Change Description Package Outline Drawing
AD9245BCPZ-20	PRODUCTION
AD9245BCPZ-40	PRODUCTION
AD9245BCPZ-65	PRODUCTION
AD9245BCPZ-80
AD9245BCPZRL7-20	PRODUCTION
AD9245BCPZRL7-40	PRODUCTION
AD9245BCPZRL7-80	PRODUCTION
Jun 20, 2011 - 11_0103 Metal Mask Revision AD9235A Die
		PCN11_0103_Form Material_Report
AD9245BCPZ-20	PRODUCTION
AD9245BCPZ-40	PRODUCTION
AD9245BCPZ-65	PRODUCTION
AD9245BCPZRL7-20	PRODUCTION
AD9245BCPZRL7-40	PRODUCTION
Feb 15, 2010 - 07_0061 LFCSP Package Manufacturing Line Transfer from Amkor Korea to Amkor PRC
		Material_Report Material_Report PCN_07_0061_RevB_China PCN_07_0061_RevB_Korea PCN07_0061_Form
AD9245BCPZ-20	PRODUCTION
AD9245BCPZ-40	PRODUCTION
AD9245BCPZ-65	PRODUCTION
AD9245BCPZ-80
AD9245BCPZRL7-20	PRODUCTION
AD9245BCPZRL7-40	PRODUCTION
AD9245BCPZRL7-80	PRODUCTION

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

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AD9245 Simulink ADIsimADC Model

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AD9245 IBIS Models 2

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