ADS1243 Status: ACTIVE

24-Bit ADC, 8 Ch, PGA 1:128, 50/60 Hz Notch, 0.6 mW Power Consumption

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Datasheet

24-Bit Analog-To-Digital Converter (Rev. G) (ads1243.pdf, 597 KB)
23 Feb 2007 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

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ADS1278: Octal, 128kHz, Simultaneous Sampling 24-Bit Delta Sigma ADC
ADS1251: ResolutionPlus 24-Bit, 20kHz, Low Power Analog-to-Digital Converter
TVP5146: NTSC/PAL/SECAM 4x10-Bit Digital Video Decoder With Macrovision Detection, YPbPR/RBG Inputs
TPA6205A1: 1.25-W Mono, Fully Differential, Class-AB Audio Amplifier with 1.8V Compatible Shutdown Voltage
PCM1808: Single-ended Analog Input 24-bit, 96-kHz Stereo A/D Converter

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Product Information

Features

24 BITS NO MISSING CODES
SIMULTANEOUS 50Hz AND 60Hz REJECTION (-90dB MINIMUM)
0.0015% INL
21 BITS EFFECTIVE RESOLUTION (PGA = 1), 19 BITS (PGA = 128)
PGA GAINS FROM 1 TO 128
SINGLE-CYCLE SETTLING
PROGRAMMABLE DATA OUTPUT RATES
EXTERNAL DIFFERENTIAL REFERENCE OF 0.1V TO 5V
ON-CHIP CALIBRATION
SPI™ COMPATIBLE
2.7V TO 5.25V SUPPLY RANGE
600µW POWER CONSUMPTION
UP TO EIGHT INPUT CHANNELS
UP TO EIGHT DATA I/O
APPLICATIONS
- INDUSTRIAL PROCESS CONTROL
- LIQUID/GAS CHROMATOGRAPHY
- BLOOD ANALYSIS
- SMART TRANSMITTERS
- PORTABLE INSTRUMENTATION
- WEIGHT SCALES

All trademarks are the property of their respective owners.

Description

The ADS1242 and ADS1243 are precision, wide dynamic range, delta-sigma, analog-to-digital (A/D) converters with 24-bit resolution operating from 2.7V to 5.25V supplies. These delta-sigma, A/D converters provide up to 24 bits of no missing code performance and effective resolution of 21 bits.

The 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 Programmable Gain Amplifier (PGA) 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 FIR filter that provides a simultaneous 50Hz and 60Hz notch. The reference input is differential and can be used for ratiometric conversion.

The serial interface is SPI compatible. Up to eight bits of data I/O are also provided that can be used for input or output. The ADS1242 and ADS1243 are 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	Temp (^oC)	Price \| Quantity	Package \| Pins	Top Side Marking	Package QTY \| Package Carrier	Symbols	Footprints	Samples
ADS1243IPWR	ACTIVE	-40 to 85	4.95 \| 100u	TSSOP (PW) \| 20	View	2500 \| LARGE T&R	Purchase Samples
ADS1243IPWRG4	ACTIVE	-40 to 85	4.95 \| 100u	TSSOP (PW) \| 20	View	2500 \| LARGE T&R	Purchase Samples
ADS1243IPWT	ACTIVE	-40 to 85	5.45 \| 100u	TSSOP (PW) \| 20	View	250 \| SMALL T&R
ADS1243IPWTG4	ACTIVE	-40 to 85	5.45 \| 100u	TSSOP (PW) \| 20	View	250 \| SMALL T&R

* 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
ADS1243IPWR	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
ADS1243IPWRG4	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
ADS1243IPWT	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	Americas	DigiKey	>1k
					Mouser Electronics	>1k
					Newark	662
				Asia	WPI	154
				Europe	Farnell	356
ADS1243IPWTG4	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
ADS1243IPWR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
ADS1243IPWRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
ADS1243IPWT	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
ADS1243IPWTG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	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

24-Bit Analog-To-Digital Converter (Rev. G) (ads1243.pdf, 597 KB)
23 Feb 2007 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
Shelf-Life Evaluation of Lead-Free Component Finishes (szza046.htm, 8 KB)
24 May 2004 Abstract
Inputs Currents for High-Resolution ADCs (sbaa090.htm, 8 KB)
06 Mar 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
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

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

Alternative Products - Are similar to ADS1243
Part #	Name	Comments
ADS1241	24-Bit Analog-to-Digital Converter	The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device. Has a different package than ADS1243
ADS1242	24-Bit ADC, 4 Ch, PGA 1:128, 50/60 Hz Notch, 0.6 mW Power Consumption	The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device. Has 4 serial and 2 Diff channels
ADS1232	24-Bit, Ultra Low-Noise Analog-to-Digital Converter	The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.
ADS1234	24-Bit, Ultra Low-Noise Analog-to-Digital Converter	The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.
ADS1218	24-Bit, 780 SPS ADC w/FLASH Memory, 8 CH, Vref, Buffer, 2 IDACs, Serial Out, Digital I/O, Low Power	The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device. Has a higher sampling rate
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Part #	Name	Product Family	Comments
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OPA369	1.8V, 1uA max, Zero-Crossover Rail-to-Rail I/O Operational Amplifier	PRECISION AMPLIFIERS- LOW POWER	OPERATIONAL AMPLIFIER
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