ADS1241 Status: ACTIVE

24-Bit Analog-to-Digital Converter

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Datasheet

24-Bit Analog-to-Digital Converter (Rev. E) (PDF 621 KB)
02 Aug 2006

	ADS1241
Resolution(Bits)	24
Sample Rate (max)	15SPS
Architecture	Delta-Sigma
Power Consumption(Typ)(mW)	0.6
DNL(Max)(+/-LSB)	1
INL(Max)(+/-LSB)	0.0015%
No Missing Codes(Bits)	24
No. of Supplies	2
Analog Voltage AV/DD(Min)(V)	2.7
Analog Voltage AV/DD(Max)(V)	5.25
Logic Voltage DV/DD(Min)(V)	2.7
Logic Voltage DV/DD(Max)(V)	5.25
Input Configuration Range	Vref/PGA (1-128)
Reference Mode	Ext
Rating	Catalog
Pin/Package	28SSOP
# Input Channels	8
	Samples
	Inventory

Customers Who Evaluated This Product Also Evaluated

ADS1243: 24-Bit ADC, 8 Ch, PGA 1:128, 50/60 Hz Notch, 0.6 mW Power Consumption
ADS1251: ResolutionPlus 24-Bit, 20kHz, Low Power Analog-to-Digital Converter
ADS1234: 24-Bit, Ultra Low-Noise Analog-to-Digital Converter
OPA541: High Power Monolithic Operational Amplifier
INA101: Very High Accuracy Instrumentation Amplifier
RCV420: Precision 4mA to 20mA Current Loop Receiver

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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
- WEIGHT SCALES
- LIQUID/GAS CHROMATOGRAPHY
- BLOOD ANALYSIS
- SMART TRANSMITTERS
- PORTABLE INSTRUMENTATION

All trademarks are the property of their respective owners.

Description

The ADS1240 and ADS1241 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 ADS1240 and ADS1241 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	Price \| Quantity	Package \| Pins	Top Side Marking	Package QTY \| Package Carrier	Symbols	Footprints	Samples
ADS1241E	ACTIVE	4.65 \| 1ku	SSOP (DB) \| 28	View	50 \| TUBE
ADS1241E/1K	ACTIVE	4.20 \| 1ku	SSOP (DB) \| 28	View	1000 \| LARGE T&R	Purchase Samples
ADS1241E/1KG4	ACTIVE	4.20 \| 1ku	SSOP (DB) \| 28	View	1000 \| LARGE T&R	Purchase Samples
ADS1241EG4	ACTIVE	4.65 \| 1ku	SSOP (DB) \| 28	View	50 \| TUBE

* 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 12:12 PM GMT, 08 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 20 WeeksADS1241E
Americas	Arrow	>1k
Asia	Farnell Asia	305
Asia	WPI	225
Europe	Farnell	180
Europe	Spoerle	600
Worldwide	Mouser Electronics	48
TI Lead Time*: 4 WeeksADS1241E/1K
Americas	Arrow	1k
TI Lead Time*: 4 WeeksADS1241E/1KG4
None Reported View Distributors
TI Lead Time*: 20 WeeksADS1241EG4
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
ADS1241E	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
ADS1241E/1K	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
ADS1241E/1KG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
ADS1241EG4	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

Most useful technical documents for ADS1241

Datasheet

24-Bit Analog-to-Digital Converter (Rev. E) (PDF, 621 KB)
02 Aug 2006

Application Notes

Thermal and Electrical Properties of Selected Packaging Materials (HTM, 8 KB) 15703 views
04 Oct 2000 Read Abstract
Overclocking the ADS1240 and ADS1241 (Rev. A) (HTM, 8 KB) 576 views
08 Jul 2004 Read Abstract
Shelf-Life Evaluation of Lead-Free Component Finishes (HTM, 8 KB) 26969 views
24 May 2004 Read Abstract
A Glossary of Analog-to-Digital Specifications and Performance Characteristics (Rev. A) (HTM, 8 KB) 17785 views
12 Jan 2008 Read Abstract
Interfacing the ADS1241 to the MSP430F449 (HTM, 8 KB) 1889 views
25 Oct 2004 Read Abstract
Measuring Single-Ended 0V-5V Signals with Differential Delta-Sigma ADCs (HTM, 8 KB) 3442 views
25 Aug 2005 Read Abstract
Programming Tricks for Higher Conversion Speeds Utilizing Delta Sigma Converters (HTM, 8 KB) 4517 views
27 Sep 2000 Read Abstract
Giving Delta-Sigma Converters a Gain Boost with a Front End Analog Gain Stage (HTM, 8 KB) 4790 views
27 Sep 2000 Read Abstract
Interleaving Analog-to-Digital Converters (HTM, 8 KB) 7621 views
02 Oct 2000 Read Abstract
Analog-to-Digital Converter Grounding Practices Affect System Performance (HTM, 8 KB) 14427 views
02 Oct 2000 Read Abstract
Principles of Data Acquisition and Conversion (HTM, 8 KB) 16061 views
02 Oct 2000 Read Abstract
High Speed Data Conversion (HTM, 8 KB) 22219 views
02 Oct 2000 Read Abstract
Inputs Currents for High-Resolution ADCs (HTM, 8 KB) 1652 views
06 Mar 2003 Read Abstract
ADS1240, 1241 App-Note: Accessing the Onboard Temp Diode in the ADS1240/ADS1241 (HTM, 8 KB) 650 views
04 Oct 2002 Read Abstract
What Designers Should Know About Data Converter Drift (HTM, 8 KB) 9810 views
02 Oct 2000 Read Abstract

View Application Notes for Analog to Digital Converter

User Guides

ADS1241MEVM User's Guide (PDF, 226 KB) 854 views
25 Oct 2004
ADS1241-EVM (Rev. A) (PDF, 227 KB) 828 views
23 Jul 2001

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
ADS1241MEVM Evaluation Module	ADS1241MEVM	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)(ZIP 5199 KB ) 6110 views 05 May 2008

Part #	Name	Product Family	Comments
ADS1243	24-Bit ADC, 8 Ch, PGA 1:128, 50/60 Hz Notch, 0.6 mW Power Consumption	DATA CONVERTERS - ANALOG TO DIGITAL CONVERTER	The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device. Has a different package than ADS1241
ADS1240	24-Bit Analog-to-Digital Converter	DATA CONVERTERS - ANALOG TO DIGITAL CONVERTER	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	DATA CONVERTERS - 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	DATA CONVERTERS - 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	DATA CONVERTERS - ANALOG TO DIGITAL CONVERTER	The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device. Has a higher sampling rate
OPA333	1.8V, 17uA, 2uV, microPOWER CMOS Zero-Drift Series Operational Amplifier	PRECISION AMPLIFIER - LOW OFFSET VOLTAGE	OPERATIONAL AMPLIFIER
OPA369	1.8V, 700nA, Zero-Crossover Rail-To-Rail I/O Operational Amplifier	PRECISION AMPLIFIER - LOW POWER	OPERATIONAL AMPLIFIER
REF5025	Low Noise, Very Low Drift, Precision Voltage Reference	VOLTAGE REFERENCE - SERIES VOLTAGE REFERENCE	SERIES VOLTAGE REFERENCE
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ADS1241 Status: ACTIVE

24-Bit Analog-to-Digital Converter

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