AD7328

PRODUCTION

Software Selectable, True Bipolar Input, 8-Channel, 12-Bit Plus Sign A/D Converter

Data Sheet (Rev. C) Product Selection Table

Part Models: 3
1ku List Price: Starting From $7.67

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Overview

12-Bit plus Sign SAR ADC
True Bipolar Input Ranges
Software Selectable Input Ranges: ± 10V, ± 5V, ± 2.5V, 0 to 10V
Eight Analog Input Channels with Channel Sequencer
Single Ended, True Differential and Pseudo Differential Analog Input Capability

High Analog Input Impedance
Low Power: 26 mW
Full Power Signal Bandwidth: >13 MHz
Internal 2.5 V Reference
High Speed Serial Interface - 1 MSPS Throughput
For four and two channel equivalent devices, see AD7324, AD7322

The AD7328 is an 8-channel, 12-bit plus sign, successive approximation ADC designed on the iCMOS^™ (industrial CMOS) process. iCMOS is a process combining high voltage silicon with submicron CMOS and complementary bipolar technologies. It enables the development of a wide range of high performance analog ICs capable of 33 V operation in a footprint that no previous generation of high voltage parts could achieve. Unlike analog ICs using conventional CMOS processes, iCMOS components can accept bipolar input signals while providing increased performance, dramatically reduced power consumption, and reduced package size.

The AD7328 can accept true bipolar analog input signals. The AD7328 has four software-selectable input ranges, ±10 V, ±5 V, ±2.5 V, and 0 V to +10 V. Each analog input channel can be independently programmed to one of the four input ranges. The analog input channels on the AD7328 can be programmed to be single-ended, true differential, or pseudo differential.

The ADC contains a 2.5 V internal reference. The AD7328 also allows for external reference operation. If a 3 V reference is applied to the REFIN/OUT pin, the AD7328 can accept a true bipolar ±12 V analog input. Minimum ±12 V V_DD and V_SS supplies are required for the ±12 V input range. The ADC has a high speed serial interface that can operate at throughput rates up to 1 MSPS.

PRODUCT HIGHLIGHTS

The AD7328 can accept true bipolar analog input signals, ±10 V, ±5 V, ±2.5 V, and 0 V to +10 V unipolar signals
The eight analog inputs can be configured as eight single-ended inputs, four true differential input pairs, four pseudo differential inputs, or seven pseudo differential inputs
1 MSPS serial interface. SPI^®-/QSPI^™-/DSP-/MICROWIRE^™-compatible interface
Low power, 30 mW, at a maximum throughput rate of 1 MSPS
Channel sequencer

Part Models: 3
1ku List Price: Starting From $7.67

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
AD7328BRUZ	20-Lead TSSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD7328BRUZ-REEL	20-Lead TSSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD7328BRUZ-REEL7	20-Lead TSSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Sep 16, 2014 - 14_0174 AD7321, AD7322, AD7323, AD7324, AD7327, AD7328, AD7329 Die Revision
		PCN14_0174_Form Material_Report
AD7328BRUZ	PRODUCTION
AD7328BRUZ-REEL	PRODUCTION
AD7328BRUZ-REEL7	PRODUCTION
Jul 23, 2014 - 13_0241 Qualification of ASE Chungli as an Alternate Assembly Site for Select 16L, 20L and 24L TSSOP Packages
		PCN13_0241_Form Material_Report Detailed Change Description Qualification Results Summary Qualification Results Summary
AD7328BRUZ	PRODUCTION
AD7328BRUZ-REEL	PRODUCTION
AD7328BRUZ-REEL7	PRODUCTION
Jan 13, 2014 - 13_0168 Update of AD7321/2/3/4/7/8/9 Datasheets for Clarification of Available Register Map
		PCN13_0168_Form Material_Report
AD7328BRUZ	PRODUCTION
AD7328BRUZ-REEL	PRODUCTION
AD7328BRUZ-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
AD7328BRUZ	PRODUCTION
AD7328BRUZ-REEL	PRODUCTION
AD7328BRUZ-REEL7	PRODUCTION
Oct 13, 2009 - 09_0215 AD7329,AD7328,AD7327,AD7324,AD7323,AD7322,AD7321 Data sheet specification change
		Material_Report PCN09_0215_Form
AD7328BRUZ	PRODUCTION
AD7328BRUZ-REEL	PRODUCTION
AD7328BRUZ-REEL7	PRODUCTION
Oct 13, 2008 - 06_0084 Qualification of the 8" H Wafer Fab process at Analog Devices, Limerick, Ireland.
		06_0084RevB_PL Form Material_Report
AD7328BRUZ	PRODUCTION
AD7328BRUZ-REEL	PRODUCTION
AD7328BRUZ-REEL7	PRODUCTION

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

Software Resources

Device Drivers 1

AD7328 - Microcontroller No-OS Driver

Can't find the software or driver you need?

Hardware Ecosystem

Parts	Product Life Cycle	Description
Differential Amplifiers 2
ADA4932-1	RECOMMENDED FOR NEW DESIGNS	Low Power Differential ADC Driver
AD8137	PRODUCTION	Low Cost, Low Power Differential ADC Driver
Operational Amplifiers (Op Amps) 10
AD8021	PRODUCTION	Low Noise, High Speed Amplifier for 16-Bit Systems
ADA4899-1	PRODUCTION	Unity-Gain Stable, Ultralow Distortion, 1 nV/√Hz Voltage Noise, High Speed Op Amp

AD8022	PRODUCTION	Dual High Speed, Low Noise Op Amp
AD8597	PRODUCTION	Ultralow Distortion, Ultralow Noise Op Amp (single)
ADA4627-1	PRODUCTION	36 V, 19 MHz, Low Noise, Low Bias Current, JFET Op Amp
AD8599	PRODUCTION	Ultralow Distortion, Ultralow Noise Op Amp (Dual)
AD8610	PRODUCTION	Precision, Low Input Bias Current, Wide BW JFET Single Op Amp
AD8620	PRODUCTION	Low Input Bias Current, Wide BW JFET Precision Dual Op Amp
ADA4841-1	PRODUCTION	Low Power, Low Noise and Distortion, Rail-to-Rail Output Amplifier
ADA4841-2	PRODUCTION	Low Power, Low Noise and Distortion, Rail-to-Rail Output Amplifier
Voltage References 5
AD780	PRODUCTION	2.5 V/3.0 V High Precision Reference
REF193	PRODUCTION	3.0V Precision Micropower, Low Dropout, Low Voltage Reference
AD1582	PRODUCTION	2.5V Micropower, Precisions Series Mode Voltage References
ADR431	PRODUCTION	Ultralow Noise XFET^® Voltage References with Current Sink and Source Capability
ADR391	PRODUCTION	2.5V Micropower, Low Noise Precision Voltage Reference with Shutdown

Tools & Simulations

IBIS Model 1

AD732x IBIS Model

Evaluation Kits

AD7328 Evaluation Board

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Product Details

The EVAL-AD7328SDZ is a fully featured evaluation kit for the AD7328. This board operates in standalone mode or in conjunction with the System Development Platform, EVAL-SDP-CB1Z . When operated with the System Development Platform software is provided enabling the user to perform detailed analysis of the ADC's performance. This software includes the technical note describing the operation and set up of the evaluation board in standalone operation or when operated with the System Development Platform . When operated in standalone mode the ADZS-BRKOUT-EX3 break out board is recommended for access to various control pins.

The SDP Controller board is a separate list item in the ordering guide below (EVAL-SDP-CB1Z). If you have not previously purchased an SDP Controller board, please do so to ensure a full evaluation setup.