ADS8321 Status: ACTIVE

16-Bit, High Speed, MicroPower Sampling Analog-to-Digital Converter

Burr-Brown

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Datasheet

ADS8321: 16-Bit, High Speed, MicroPower Sampling Analog-to-Digital Converter (Rev. B) (ads8321.pdf, 451 KB)
16 Sep 2004 Download

	ADS8320	ADS8321	ADS8324	ADS8325
Resolution(Bits)	16	16	14	16
Sample Rate (max)	100kSPS	100kSPS	50kSPS	100kSPS
Architecture	SAR	SAR	SAR	SAR
Power Consumption(Typ)(mW)	1.95	5.5	2.5	2.25
SINAD(dB)	84	84	78	91
SNR(dB)	92	87	78	91
SFDR(dB)	86	86	85	108
DNL(Max)(+/-LSB)	2	2	2	2
INL(Max)(+/-LSB)	8	8	2	4
No Missing Codes(Bits)	15	15	14	16
No. of Supplies	1	1	1	1
Analog Voltage AV/DD(Min)(V)	2.7	4.75	1.8	2.7
Analog Voltage AV/DD(Max)(V)	5.25	5.25	3.6	5.5
Logic Voltage DV/DD(Min)(V)	2.7	4.75	1.8	2.7
Logic Voltage DV/DD(Max)(V)	5.25	5.25	3.6	5.5
Input Configuration Range	Vref	+/-Vref at +Vref	+/-Vref at +Vref	Vref
Reference Mode	Ext	Ext	Ext	Ext
Rating	Catalog	Catalog	Catalog	Catalog
Pin/Package	8MSOP	8MSOP	8MSOP	8MSOP,8SON
# Input Channels	1	1	1	1
	Samples	Samples	Samples	Samples
	Inventory	Inventory	Inventory	Inventory

Customers Who Evaluated This Product Also Evaluated

ADS8320: 16-Bit, High-Speed, 2.7V to 5V Micro Power Sampling Analog-to-Digital Converter
ADS8325: 16-Bit, 100kSPS Serial Out, 2.7V to 5.5V Micro Power Sampling ADC
TLV5618A: 12-Bit, 2.5 us Dual DAC, Serial Input, Pgrmable Settling Time, Q temp available
TLV431A: Low Voltage Adjustable Precision Shunt Regulator
TVP5146M2: 10-bit High Quality Single-Chip Digital Video Decoder That Digitizes And Decodes NTSC/PAL/SECAM

Product Information

Features

BIPOLAR INPUT RANGE
100kHz SAMPLING RATE
MICRO POWER:
4.5mW at 100kHz
1mW at 10kHz
POWER DOWN: 3&mirco;A max
MSOP-8 PACKAGE
PIN-COMPATIBLE TO ADS7816 AND ADS7822
SERIAL (SPI/SSI) INTERFACE
APPLICATIONS
- BATTERY OPERATED SYSTEMS
- REMOTE DATA ACQUISITION
- ISOLATED DATA ACQUISITION
- SIMULTANEOUS SAMPLING, MULTI-CHANNEL SYSTEMS
- INDUSTRIAL CONTROLS
- ROBOTICS
- VIBRATION ANALYSIS

All thradmarks are the property of their respective owners.

Description

The ADS8321 is a 16-bit sampling analog-to-digital converter (ADC) with tested specifications over a 4.75V to 5.25V supply range. It requires very little power even when operating at the full 100kHz data rate. At lower data rates, the high speed of the device enables it to spend most of its time in the power-down mode—the average power dissipation is less than 1mW at 10kHz data rate.

The ADS8321 also features a synchronous serial (SPI/SSI compatible) interface, and a differential input. The reference voltage can be set to any level within the range of 500mV to V_CC/2.

Ultra-low power and small size make the ADS8321 ideal for portable and battery-operated systems. It is also a perfect fit for remote data acquisition modules, simultaneous multi-channel systems, and isolated data acquisition. The ADS8321 is available in an MSOP-8 package.

Pricing / Packaging / CAD Design Tools / Samples

			Price	Packaging			CAD Design Tools		Samples
Device	Status	Temp (^oC)	Price \| Quantity	Package \| Pins	Top Side Marking	Package QTY \| Package Carrier	Symbols	Footprints	Samples
ADS8321E/250	ACTIVE	-40 to 85	5.70 \| 1ku	MSOP (DGK) \| 8	View	250 \| SMALL T&R
ADS8321E/250G4	ACTIVE	-40 to 85	5.70 \| 1ku	MSOP (DGK) \| 8	View	250 \| SMALL T&R
ADS8321E/2K5	ACTIVE		5.15 \| 1ku	MSOP (DGK) \| 8	View	2500 \| LARGE T&R	Purchase Samples
ADS8321E/2K5G4	ACTIVE		5.15 \| 1ku	MSOP (DGK) \| 8	View	2500 \| LARGE T&R	Purchase Samples
ADS8321EB/250	ACTIVE		6.45 \| 1ku	MSOP (DGK) \| 8	View	250 \| SMALL T&R
ADS8321EB/250G4	ACTIVE		6.45 \| 1ku	MSOP (DGK) \| 8	View	250 \| SMALL T&R
ADS8321EB/2K5	ACTIVE		5.95 \| 1ku	MSOP (DGK) \| 8	View	2500 \| LARGE T&R	Purchase Samples
ADS8321EB/2K5G4	ACTIVE		5.95 \| 1ku	MSOP (DGK) \| 8	View	2500 \| LARGE T&R	Purchase Samples

* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.

Inventory

	TI Inventory Status			Reported Distributor Inventory
ADS8321E/250	As of 10:17 AM GMT, 19 Nov 2008			As of 10:17 AM GMT, 19 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*		20 Weeks	Americas	Arrow	250
				Americas	DigiKey	>1k
				Europe	Avnet-SILICA	50
ADS8321E/250G4	As of 10:17 AM GMT, 19 Nov 2008			As of 10:17 AM GMT, 19 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*		20 Weeks	Americas	Avnet	>1k
	0*		20 Weeks	Europe	Farnell	1
ADS8321E/2K5	As of 10:17 AM GMT, 19 Nov 2008			As of 10:17 AM GMT, 19 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*		20 Weeks	None Reported View Distributors
ADS8321E/2K5G4	As of 10:17 AM GMT, 19 Nov 2008			As of 10:17 AM GMT, 19 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*		20 Weeks	None Reported View Distributors
ADS8321EB/250	As of 10:17 AM GMT, 19 Nov 2008			As of 10:17 AM GMT, 19 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*		20 Weeks	Americas	Arrow	>1k
				Americas	DigiKey	>1k
				Europe	EBV Elektronik	>1k
				Europe	Spoerle	250
ADS8321EB/250G4	As of 10:17 AM GMT, 19 Nov 2008			As of 10:17 AM GMT, 19 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*		20 Weeks	None Reported View Distributors
ADS8321EB/2K5	As of 10:17 AM GMT, 19 Nov 2008			As of 10:17 AM GMT, 19 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*		20 Weeks	None Reported View Distributors
ADS8321EB/2K5G4	As of 10:17 AM GMT, 19 Nov 2008			As of 10:17 AM GMT, 19 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*		20 Weeks	None Reported View Distributors
View all Distributors

* Our information is updated daily, so please check back with us soon if this does not meet your needs. You may also contact your TI Authorized Distributor , including those listed above, for real time stock information.

** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.

Quality & Lead (Pb)-Free Data

	Product Content				DPPM / MTBF / FIT Rate
Device	Eco Plan*	Lead / Ball Finish	MSL Rating / Peak Reflow	Details	Details
ADS8321E/250	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS8321E/250G4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS8321E/2K5	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS8321E/2K5G4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS8321EB/250	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS8321EB/250G4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS8321EB/2K5	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS8321EB/2K5G4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View

* The planned eco-friendly classification: Pb-Free (RoHS) or Pb-Free (RoHS Exempt) or Green (RoHS & no Sb/Br) - please click on the Product Content Details "View" link in the table above for the latest availability information and additional product content details.

If the information you are requesting is not available online at this time, contact one of our Product Information Centers regarding the availability of this information.

Technical Documents

Datasheets

ADS8321: 16-Bit, High Speed, MicroPower Sampling Analog-to-Digital Converter (Rev. B) (ads8321.pdf, 451 KB)
16 Sep 2004 Download

Application Notes

A Glossary of Analog-to-Digital Specifications and Performance Characteristics (Rev. A) (sbaa147a.htm, 8 KB)
12 Jan 2008 Abstract
Getting the most out of your instrumentation amplifier design (slyt226.pdf, 177 KB)
10 Oct 2005 Download
Interfacing the MSOP8EVM to MSP430 Processors (slaa209.htm, 9 KB)
28 Jul 2004 Abstract
Shelf-Life Evaluation of Lead-Free Component Finishes (szza046.htm, 8 KB)
24 May 2004 Abstract
Interfacing the MSOP8EVM to TMS320C5x Processors (slaa201.htm, 8 KB)
28 Apr 2004 Abstract
Interfacing the MSOP8EVM to TMS320C6x Processors (slaa190.htm, 9 KB)
02 Dec 2003 Abstract
Thermal and Electrical Properties of Selected Packaging Materials (sbfa010.htm, 8 KB)
04 Oct 2000 Abstract
Analog-to-Digital Converter Grounding Practices Affect System Performance (sbaa052.htm, 8 KB)
02 Oct 2000 Abstract
Principles of Data Acquisition and Conversion (sbaa051.htm, 8 KB)
02 Oct 2000 Abstract
Interleaving Analog-to-Digital Converters (sbaa049.htm, 8 KB)
02 Oct 2000 Abstract
What Designers Should Know About Data Converter Drift (sbaa046.htm, 8 KB)
02 Oct 2000 Abstract
High Speed Data Conversion (sbaa045.htm, 8 KB)
02 Oct 2000 Abstract

View Application Notes for Analog to Digital Converters

User Guides

Modular MSOP8EVM User's Guide (slau115.htm, 8 KB)
22 Sep 2003 Abstract

View User Guides for Analog to Digital Converters

More Literature

View More Literature for Analog to Digital Converters

Tools & Software

Name	Part #	Company	Tool / Software Type
Anti-Aliasing Calculation Tool for A to D Converters	ANTIALIASINGCALC	Texas Instruments	Calculation Utilities
Op Amp to ADC Circuit Topology Calculator	ADC-INPUT-CALC	Texas Instruments	Calculation Utilities
ADS8321 Evaluation Module	ADS8321EVM	Texas Instruments	Development Boards/EVMs
DCPFREETOOL Software Plug-In to Code Composer Studio	DCPFREETOOL	Texas Instruments	Utilities/Plug-Ins
Data Converter Plug-in for Code Composer Studio (Rev. D)(slac087d.zip, 5199 KB ) 05 May 2008 zip
Jitter and SNR calculator(slac133.zip, 2 KB ) 24 Apr 2007 zip

Alternative Products - Are similar to ADS8321
Part #	Name	Comments
ADS8317	16-Bit, Pseudo Bipolar, Fully Diff Input, 250kSPS Serial Out, 2.7V to 5.5V Micro Power Sampling ADC	The device has the SAME FUNCTIONALITY and PINOUT as the compared device but is NOT an exact equivalent. Equivalent device with higher sampling rate (200kSPS)
ADS8343	16-Bit, 4-Channel Serial Output Sampling Analog-To-Digital Converter	The device has the SAME FUNCTIONALITY as the compared device, but is not pin-for-pin equivalent and may not be parametrically equivalent. 2-differential input equivalent device
ADS8345	16-Bit, 8-Channel Serial Output Sampling Analog-to-Digital Converter	The device has the SAME FUNCTIONALITY as the compared device, but is not pin-for-pin equivalent and may not be parametrically equivalent. 4-differential input equivalent device
ADS8326	16-Bit, Pseudo Diff Input, 250kSPS Serial Out, 2.7V to 5.5V Micro Power Sampling ADC	The device has the SAME FUNCTIONALITY as the compared device, but is not pin-for-pin equivalent and may not be parametrically equivalent. Equivalent device at higher sampling rate (250kSPS) with pseudo differential input configuration
Customers Who Evaluated This Product Also Evaluated...
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ADS8321 Status: ACTIVE

16-Bit, High Speed, MicroPower Sampling Analog-to-Digital Converter

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