AD7729

PRODUCTION

3 V, Dual Sigma-Delta ADC with Auxiliary DAC

Data Sheet (Rev. 0) Product Selection Table

Part Models: 5
1ku List Price: Starting From $15.59

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Overview

+3 V Supply Voltage
Baseband Serial Port (BSPORT)
Differential IRx and QRx
Auxiliary D/A Converter

Auxiliary Serial Port (ASPORT)
On-Chip Voltage Reference
Low Power
28-Lead TSSOP/28-Lead SOIC
ADC Channels
- Two 15-Bit Sigma-Delta A/D Converters
- FIR Digital Filters
- 64 dB SNR
- Output Word Rate 270.83 kHz
- Twos Complement Coding
- On-Chip Offset Calibration
- Power-Down Mode

This monolithic 3 V CMOS device is a low power, two-channel, input port with signal conditioning. The receive path is composed of two, high-performance sigma-delta ADCs with digital filtering. A common bandgap reference feeds the ADCs. A control DAC is included for such functions as AGC. The auxiliary functions can be accessed via the auxiliary port (ASPORT). The maximum output word rate is 270 kHz.

The device is available in a 28-pin TSSOP package and a 28-pin SOIC package.

Part Models: 5
1ku List Price: Starting From $15.59

Documentation

Data Sheet 1

AD7729: Dual Sigma-Delta ADC with Auxiliary DAC Data Sheet (Rev.0) 12/03/1998

Technical Articles 2

Delta-Sigma Rocks RF, As ADC Designers Jump On Jitter 01/12/2006

Designing Power Supplies for High Speed ADC 02/01/2012

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
AD7729ARUZ	28-Lead TSSOP (4.4mm x 9.7mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD7729ARUZ-REEL	28-Lead TSSOP (4.4mm x 9.7mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD7729ARUZ-REEL7	28-Lead TSSOP (4.4mm x 9.7mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD7729ARZ	28-Lead SOIC (Wide)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD7729ARZ-RL	28-Lead SOIC (Wide)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Apr 5, 2021 - 21_0035 Amkor Philippines as an Alternate Site for TSSOP_4.4
		PCN21_0035_Form Material_Report Qualification Results Summary Other
AD7729ARUZ	PRODUCTION
AD7729ARUZ-REEL	PRODUCTION
AD7729ARUZ-REEL7	PRODUCTION
Jan 20, 2012 - 11_0218 Halogen Free Material Change for Certain TSSOP Products at Carsem
		PCN11_0218_Form Material_Report Qualification Report Summary
AD7729ARUZ	PRODUCTION
AD7729ARUZ-REEL	PRODUCTION
AD7729ARUZ-REEL7	PRODUCTION
Aug 4, 2010 - 10_0117 Halogen Free Material Change for SOIC_W Products at Carsem
		PCN10_0117_Form Material_Report Reliability Report
AD7729ARZ	PRODUCTION
AD7729ARZ-RL	PRODUCTION

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

Tools & Simulations

Sigma-Delta ADC Tutorial

An interactive illustration showing the behavior of an idealized sigma-delta A/D converter.

Open Tool

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