ADS8321 Status: ACTIVE

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

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Datasheet

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

	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

ADS8317: 16-Bit, Pseudo Bipolar, Fully Diff Input, 250kSPS Serial Out, 2.7V to 5.5V Micro Power Sampling ADC
ADS8326: 16-Bit, Pseudo Diff Input, 250kSPS Serial Out, 2.7V to 5.5V Micro Power Sampling ADC
ADS8320: 16-Bit, High-Speed, 2.7V to 5V Micro Power Sampling Analog-to-Digital Converter
SN74LVC245A: Octal Bus Transceiver With 3-State Outputs
SN74AVC8T245: 8-Bit Dual-Supply Bus Transceiver with Configurable Voltage Translation and 3-State Outputs
MAX3232: 3-V to 5.5-V Multichannel RS-232 Line Driver/Receiver

More Related Products

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

Reported Distributor Inventory as of 12:08 PM GMT, 06 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 4 WeeksADS8321E/250
Americas	Avnet	250
Americas	Newark	649
Asia	Farnell Asia	24
Asia	WPI	222
Europe	Farnell	19
Worldwide	DigiKey	>1k
Worldwide	Mouser Electronics	692
TI Lead Time*: 4 WeeksADS8321E/250G4
Americas	Avnet	250
Asia	Farnell Asia	372
Europe	Farnell	212
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksADS8321E/2K5
Asia	WPI	>1k
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksADS8321E/2K5G4
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksADS8321EB/250
Americas	Newark	44
Asia	Farnell Asia	44
Asia	WPI	223
Europe	Avnet-SILICA	219
Europe	Compel	>1k
TI Lead Time*: 20 WeeksADS8321EB/250G4
None Reported View Distributors
TI Lead Time*: 20 WeeksADS8321EB/2K5
Asia	WPI	496
TI Lead Time*: 20 WeeksADS8321EB/2K5G4
None Reported View Distributors
View all Distributors

** 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

Most useful technical documents for ADS8321

Datasheet

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

Application Notes

Interfacing the MSOP8EVM to TMS320C6x Processors (HTM, 9 KB) 1044 views
02 Dec 2003 Read Abstract
Thermal and Electrical Properties of Selected Packaging Materials (HTM, 8 KB) 15663 views
04 Oct 2000 Read Abstract
Interfacing the MSOP8EVM to MSP430 Processors (HTM, 9 KB) 1453 views
28 Jul 2004 Read Abstract
Interfacing the MSOP8EVM to TMS320C5x Processors (HTM, 8 KB) 535 views
28 Apr 2004 Read Abstract
Shelf-Life Evaluation of Lead-Free Component Finishes (HTM, 8 KB) 26941 views
24 May 2004 Read Abstract
Getting the most out of your instrumentation amplifier design (PDF, 177 KB) 22704 views
10 Oct 2005
A Glossary of Analog-to-Digital Specifications and Performance Characteristics (Rev. A) (HTM, 8 KB) 17740 views
12 Jan 2008 Read Abstract
Interleaving Analog-to-Digital Converters (HTM, 8 KB) 7602 views
02 Oct 2000 Read Abstract
Analog-to-Digital Converter Grounding Practices Affect System Performance (HTM, 8 KB) 14400 views
02 Oct 2000 Read Abstract
Principles of Data Acquisition and Conversion (HTM, 8 KB) 16012 views
02 Oct 2000 Read Abstract
High Speed Data Conversion (HTM, 8 KB) 22174 views
02 Oct 2000 Read Abstract
What Designers Should Know About Data Converter Drift (HTM, 8 KB) 9789 views
02 Oct 2000 Read Abstract
Using fully differential op amps as attenuators, Part 3: Single-ended unipolar (PDF, 568 KB) 119 views
04 Oct 2009
Q4 2009 Issue Analog Applications Journal (PDF, 1459 KB) 526 views
04 Oct 2009
Using fully diff. op amps as attenuators, Part2: Single-ended bipolar input sign (PDF, 528 KB) 675 views
14 Jul 2009
Q3 2009 Issue Analog Applications Journal (PDF, 2049 KB) 2993 views
14 Jul 2009
Using fully differential op amps as attenuators, Part 1 (PDF, 554 KB) 1391 views
01 May 2009
Q2 2009 Issue Analog Applications Journal (PDF, 1560 KB) 2728 views
01 May 2009
Interfacing the MSOP8EVM to TMS470 Processors (HTM, 9 KB) 225 views
15 Mar 2006 Read Abstract

View Application Notes for Analog to Digital Converter

User Guides

Modular MSOP8EVM User's Guide (Rev. A) (PDF, 141 KB) 1799 views
29 Jun 2009
MSOP-8EVM and MSOP-8EVM-PDK User's Guide (PDF, 2161 KB) 517 views
04 Dec 2008

View User Guides for Analog to Digital Converter

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
ADS8321 Performance Development Kit	ADS8321EVM-PDK	Texas Instruments	Development Boards/EVMs
DCPFREETOOL Software Plug-In to Code Composer Studio	DCPFREETOOL	Texas Instruments	Utilities/Plug-Ins
ADCPro(TM) Analog-to-Digital Converter Evaluation Software	ADCPRO	Texas Instruments	Application Software
Data Converter Plug-in for Code Composer Studio (Rev. D)(ZIP 5199 KB ) 6101 views 05 May 2008
Jitter and SNR calculator(ZIP 2 KB ) 1578 views 24 Apr 2007

Part #	Name	Product Family	Comments
ADS8317	16-Bit, Pseudo Bipolar, Fully Diff Input, 250kSPS Serial Out, 2.7V to 5.5V Micro Power Sampling ADC	DATA CONVERTERS - ANALOG TO DIGITAL CONVERTER	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	DATA CONVERTERS - 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	DATA CONVERTERS - 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	DATA CONVERTERS - 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. 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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Customers Who Evaluated This Product Also Evaluated