ADS1216 Status: ACTIVE

24-Bit Analog-to-Digital Converter

Burr-Brown

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Datasheet

8-Channel, 24-Bit Analog-to-Digital Converter (Rev. D) (ads1216.pdf, 971 KB)
07 Sep 2006 Download

	ADS1216	ADS1217	ADS1218	ADS1240	ADS1241	ADS1242	ADS1243	ADS1248	ADS1256
Resolution(Bits)	24	24	24	24	24	24	24	24	24
Sample Rate (max)	780SPS	780SPS	780SPS	15SPS	15SPS	15SPS	15SPS	2KSPS	30kSPS
Architecture	Delta-Sigma	Delta-Sigma	Delta-Sigma	Delta-Sigma	Delta-Sigma	Delta-Sigma	Delta-Sigma		Delta-Sigma
Power Consumption(Typ)(mW)	0.6	0.8	0.8	0.6	0.6	0.6	0.6	2.56	36
DNL(Max)(+/-LSB)	1	1	1	1	1	1	1		2
INL(Max)(+/-LSB)	0.0015%	0.0015%	0.0015%	0.0015%	0.0015%	0.0015%	0.0015%		0.0003%
No Missing Codes(Bits)	24	24	24	24	24	24	24	24	24
ENOB(Bits)									23
No. of Supplies	2	2	2	2	2	1	1	3	2
Analog Voltage AV/DD(Min)(V)	2.7	2.7	2.7	2.7	2.7	2.7	2.7	2.5	4.75
Analog Voltage AV/DD(Max)(V)	5.25	5.25	5.25	5.25	5.25	5.25	5.25	5.8	5.25
Logic Voltage DV/DD(Min)(V)	2.7	2.7	2.7	2.7	2.7	2.7	2.7	2.5	1.8
Logic Voltage DV/DD(Max)(V)	5.25	5.25	5.25	5.25	5.25	5.25	5.25	5.8	3.6
Input Configuration Range	Vref/PGA (1-128)	Vref/PGA (1-128)	Vref/PGA (1-128)	Vref/PGA (1-128)	Vref/PGA (1-128)	Vref/PGA (1-128)	Vref/PGA (1-128)	+/- Vref / PGA	2Vref/PGA(1-64
Reference Mode	Int	Int	Int	Ext	Ext	Ext	Ext	Int/Ext	Ext
Rating	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog
Pin/Package	48TQFP	48TQFP	48TQFP	24SSOP	28SSOP	16TSSOP	20TSSOP	28TSSOP	28SSOP
# Input Channels	8	8	8	4	8	4	8	7	8
	Samples	Samples	Samples	Samples	Samples	Samples	Samples	Samples	Samples
	Inventory	Inventory	Inventory	Inventory	Inventory	Inventory	Inventory	Inventory	Inventory

Customers Who Evaluated This Product Also Evaluated

ADS1256: 24 Bit, 30kSPS Very Low Noise Delta-Sigma ADC with Multiplexer
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ADS1210: 24-Bit Analog-to-Digital Converter
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TPS5430: 5.5V to 36V Input, 3-A Step Down Converter
TPS54312: Low Input Voltage 3A Synchronous Buck Converter with 1.2V Output

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Product Information

Features

24 BITS, NO MISSING CODES
0.0015% INL
22 BITS EFFECTIVE RESOLUTION (PGA = 1), 19 BITS (PGA = 128)
PGA FROM 1 TO 128
SINGLE-CYCLE SETTLING MODE
PROGRAMMABLE DATA OUTPUT RATES: up to 1kHz
ON-CHIP 1.25V/2.5V REFERENCE
EXTERNAL DIFFERENTIAL REFERENCE: 0.1V to 2.5V
ON-CHIP CALIBRATION
SPI™-COMPATIBLE
2.7V TO 5.25V
< 1mW POWER CONSUMPTION
APPLICATIONS
- INDUSTRIAL PROCESS CONTROL
- LIQUID/GAS CHROMATOGRAPHY
- BLOOD ANALYSIS
- SMART TRANSMITTERS
- PORTABLE INSTRUMENTATION
- WEIGHT SCALES
- PRESSURE TRANSDUCERS

SPI is a trademark of Motorola.
All other trademarks are the property of their respective owners.

Description

The ADS1216 is a precision, wide dynamic range, delta-sigma, Analog-to-Digital (A/D) converter with 24-bit resolution operating from 2.7V to 5.25V supplies. The delta-sigma A/D converter provides up to 24 bits of no-missing-code performance and an effective resolution of 22 bits.

The eight input channels are multiplexed. Internal buffering can be selected to provide a very high input impedance for direct connection to transducers or low-level voltage signals. Burnout current sources are provided that allow for the detection of an open or shorted sensor. An 8-bit Digital-to-Analog Converter (DAC) provides an offset correction with a range of 50% of the FSR (Full-Scale Range).

The PGA (Programmable Gain Amplifier) provides selectable gains of 1 to 128 with an effective resolution of 19 bits at a gain of 128. The A/D conversion is accomplished with a second-order delta-sigma modulator and programmable sinc filter. The reference input is differential and can be used for ratiometric cancellation. The onboard current DACs operate independently with the maximum current set by an external resistor.

The serial interface is SPI-compatible. Eight bits of digital I/O are also provided that can be used for input or output. The ADS1216 is designed for high-resolution measurement applications in smart transmitters, industrial process control, weight scales, chromatography, and portable instrumentation.

Pricing / Packaging / CAD Design Tools / Samples

		Price	Packaging			CAD Design Tools		Samples
Device	Status	Price \| Quantity	Package \| Pins	Top Side Marking	Package QTY \| Package Carrier	Symbols	Footprints	Samples
ADS1216Y/250	ACTIVE	6.90 \| 100u	TQFP (PFB) \| 48	View	250 \| SMALL T&R
ADS1216Y/250G4	ACTIVE	6.90 \| 100u	TQFP (PFB) \| 48	View	250 \| SMALL T&R
ADS1216Y/2K	ACTIVE	6.25 \| 100u	TQFP (PFB) \| 48	View	2000 \| LARGE T&R	Purchase Samples
ADS1216Y/2KG4	ACTIVE	6.25 \| 100u	TQFP (PFB) \| 48	View	2000 \| 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
ADS1216Y/250	As of 10:18 AM GMT, 19 Nov 2008			As of 10:18 AM GMT, 19 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	250*	500 \| 22 Dec	8 Weeks	Americas	Arrow	>1k
		250 \| 29 Dec			Avnet	250
		>10k \| 21 Jan			DigiKey	>1k
					Mouser Electronics	210
					Newark	302
				Asia	WPI	32
				Europe	Avnet-SILICA	160
				Europe	EBV Elektronik	122
ADS1216Y/250G4	As of 10:18 AM GMT, 19 Nov 2008			As of 10:18 AM GMT, 19 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	250*	500 \| 22 Dec	8 Weeks	Europe	EBV Elektronik	1k
		250 \| 29 Dec
		>10k \| 21 Jan
ADS1216Y/2K	As of 10:18 AM GMT, 19 Nov 2008			As of 10:18 AM GMT, 19 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 28 Jan	12 Weeks	Europe	EBV Elektronik	1k
ADS1216Y/2KG4	As of 10:18 AM GMT, 19 Nov 2008			As of 10:18 AM GMT, 19 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 28 Jan	12 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
ADS1216Y/250	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS1216Y/250G4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS1216Y/2K	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS1216Y/2KG4	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

8-Channel, 24-Bit Analog-to-Digital Converter (Rev. D) (ads1216.pdf, 971 KB)
07 Sep 2006 Download

Application Notes

A Glossary of Analog-to-Digital Specifications and Performance Characteristics (Rev. A) (sbaa147a.htm, 8 KB)
12 Jan 2008 Abstract
Measuring Single-Ended 0V-5V Signals with Differential Delta-Sigma ADCs (sbaa133.htm, 8 KB)
25 Aug 2005 Abstract
Supply Voltage Measurement and ADS PSRR Improvement in MSC12xx Devices (slyt073.pdf, 495 KB)
18 Jan 2005 Download
Shelf-Life Evaluation of Lead-Free Component Finishes (szza046.htm, 8 KB)
24 May 2004 Abstract
Measuring Temperature with the ADS1216, ADS1217, or ADS1218 (Rev. A) (sbaa073a.htm, 8 KB)
17 Feb 2004 Abstract
Calibration Routines and Register Value Generation for the ADS121x Series (sbaa099.htm, 8 KB)
19 Jun 2003 Abstract
Inputs Currents for High-Resolution ADCs (sbaa090.htm, 8 KB)
06 Mar 2003 Abstract
The Offset DAC (sbaa077.htm, 8 KB)
01 May 2002 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
Giving Delta-Sigma Converters a Gain Boost with a Front End Analog Gain Stage (sbaa006.htm, 8 KB)
27 Sep 2000 Abstract
Programming Tricks for Higher Conversion Speeds Utilizing Delta Sigma Converters (sbaa005.htm, 8 KB)
27 Sep 2000 Abstract

View Application Notes for Analog to Digital Converters

User Guides

DEM-ADS1216 Evaluation Fixture User's Guide (Rev. A) (sbau038a.pdf, 2007 KB)
14 Feb 2007 Download

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
DEM-ADS1216 Evaluation Fixture for the ADS1216	DEM-ADS1216	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

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Part #	Name	Product Family	Comments
OPA277	High Precision Operational Amplifiers	PRECISION AMPLIFIERS- LOW OFFSET VOLTAGE	OPERATIONAL AMPLIFIER
OPA211	1.1nV/rtHz Noise, Low Power, Precision Operational Amplifier in Tiny DFN-8 Package	PRECISION AMPLIFIERS- LOW NOISE	OPERATIONAL AMPLIFIER
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