ADS1271 Status: ACTIVE

24-Bit, 105kSPS Industrial Delta-Sigma ADC

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Datasheet

24-Bit, Wide Bandwidth Analog-to-Digital Converter (Rev. F) (PDF 587 KB)
23 Oct 2007

	ADS1271	ADS1274	ADS1278	ADS1672	ADS1675
Resolution(Bits)	24	24	24	24	24
Sample Rate (max)	105kSPS	144kSPS	144kSPS	625kSPS	4MSPS
Architecture	Delta-Sigma	Delta-Sigma	Delta-Sigma	Delta-Sigma	Delta-Sigma
Power Consumption(Typ)(mW)	92	275	530	350	575
SNR(dB)	109	111	111	105	93
SNR(Typ)(dB)				105	93
SFDR(dB)	108	109	109	115	119
DNL(Max)(+/-LSB)	1	1	1	1	1
INL(Max)(+/-LSB)	0.0006%	0.0003%	0.0003%	2
No Missing Codes(Bits)	24	24	24	24	24
ENOB(Bits)				19.2	18.8
No. of Supplies	2	3	3	2	2
Analog Voltage AV/DD(Min)(V)	4.75	4.75	4.75	4.75	4.75
Analog Voltage AV/DD(Max)(V)	5.25	5.25	5.25	5.25	5.25
Logic Voltage DV/DD(Min)(V)	1.65	1.65	1.65	2.7	2.7
Logic Voltage DV/DD(Max)(V)	3.6	3.6	3.6	3.3	3.3
Input Configuration Range	1.06Vref	Vref	Vref	+/-Vref	+/- Vref
Reference Mode	Ext	Ext	Ext	Ext	Ext
Rating	Catalog	Catalog	Catalog	Catalog	Catalog
Pin/Package	16TSSOP	64HTQFP	64HTQFP	64TQFP	64TQFP
# Input Channels	1	4	8	1	1
	Samples	Samples	Samples	Samples	Samples
	Inventory	Inventory	Inventory	Inventory	Inventory

Customers Who Evaluated This Product Also Evaluated

ADS1278: Octal, 128kHz, Simultaneous Sampling 24-Bit Delta Sigma ADC
ADS1672: High Speed High Resolution 625kSPS 24 bit Delta Sigma ADC
ADS1281: High Resolution 24-Bit Analog-to Digital Converter
OPA1632: Fully Differential I/O Audio Amplifier
TL431A: Adjustable Precision Shunt Regulator

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Product Information

Features

105kSPS Data Rate
AC Performance:
51kHz Bandwidth
109dB SNR (High-Resolution Mode)
–108dB THD
DC Accuracy:
1.8µV/°C Offset Drift
2ppm/°C Gain Drift
Selectable Operating Modes:
High-Speed: 105kSPS Data Rate
High-Resolution: 109dB SNR
Low-Power: 35mW Dissipation
Power-Down Control
Digital Filter:
Linear Phase Response
Passband Ripple: ±0.005dB
Stop Band Attenuation: 100dB
Internal Offset Calibration On Command
Selectable SPI&™ or Frame Sync Serial Interface
Designed for Multichannel Systems:
Daisy-Chainable Serial Interface
Easy Synchronization
Simple Pin-Driven Control
Modulator Output Option
Specified from –40°C to +105°C
Analog Supply: 5V
Digital Supply: 1.8V to 3.3V
APPLICATIONS
- Vibration/Modal Analysis
- Acoustics
- Dynamic Strain Gauges
- Pressure Sensors
- Test and Measurement

View All Features in Datasheet

Description

The ADS1271 is a 24-bit, delta-sigma analog-to-digital converter (ADC) with a data rate up to 105kSPS. It offers a unique combination of excellent DC accuracy and outstanding AC performance. The high-order, chopper-stabilized modulator achieves very low drift with low in-band noise. The onboard decimation filter suppresses modulator and signal out-of-band noise. The ADS1271 provides a usable signal bandwidth up to 90% of the Nyquist rate with less than 0.005dB of ripple.

Traditionally, industrial delta-sigma ADCs offering good drift performance use digital filters with large passband droop. As a result, they have limited signal bandwidth and are mostly suited for DC measurements. High-resolution ADCs in audio applications offer larger usable bandwidths, but the offset and drift specification are significantly weaker than their industrial counterparts.

View All Description in Datasheet

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
ADS1271IBPW	ACTIVE		9.10 \| 1ku	TSSOP (PW) \| 16	View	90 \| TUBE
ADS1271IBPWG4	ACTIVE		9.10 \| 1ku	TSSOP (PW) \| 16	View	90 \| TUBE
ADS1271IBPWR	ACTIVE		8.45 \| 1ku	TSSOP (PW) \| 16	View	2000 \| LARGE T&R	Purchase Samples
ADS1271IBPWRG4	ACTIVE		8.45 \| 1ku	TSSOP (PW) \| 16	View	2000 \| LARGE T&R	Purchase Samples
ADS1271IPW	ACTIVE	-40 to 125	6.95 \| 1ku	TSSOP (PW) \| 16	View	90 \| TUBE
ADS1271IPWG4	ACTIVE	-40 to 125	6.95 \| 1ku	TSSOP (PW) \| 16	View	90 \| TUBE
ADS1271IPWR	ACTIVE	-40 to 125	6.35 \| 1ku	TSSOP (PW) \| 16	View	2500 \| LARGE T&R	Purchase Samples
ADS1271IPWRG4	ACTIVE	-40 to 125	6.35 \| 1ku	TSSOP (PW) \| 16	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 12:20 PM GMT, 20 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 20 WeeksADS1271IBPW
Americas	Arrow	180
	Avnet	74
Asia	WPI	58
TI Lead Time*: 20 WeeksADS1271IBPWG4
None Reported View Distributors
TI Lead Time*: 20 WeeksADS1271IBPWR
None Reported View Distributors
TI Lead Time*: 20 WeeksADS1271IBPWRG4
None Reported View Distributors
TI Lead Time*: 20 WeeksADS1271IPW
Americas	Arrow	891
	Newark	5
Asia	Farnell Asia	24
Europe	Arrow Southern Europe	554
	Farnell	24
TI Lead Time*: 20 WeeksADS1271IPWG4
Asia	Farnell Asia	278
Europe	Farnell	173
TI Lead Time*: 20 WeeksADS1271IPWR
None Reported View Distributors
TI Lead Time*: 20 WeeksADS1271IPWRG4
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
ADS1271IBPW	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS1271IBPWG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS1271IBPWR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS1271IBPWRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS1271IPW	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS1271IPWG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS1271IPWR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS1271IPWRG4	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 ADS1271

Datasheet

24-Bit, Wide Bandwidth Analog-to-Digital Converter (Rev. F) (PDF, 587 KB)
23 Oct 2007

Application Notes

Thermal and Electrical Properties of Selected Packaging Materials (HTM, 8 KB) 15987 views
04 Oct 2000 Read Abstract
Shelf-Life Evaluation of Lead-Free Component Finishes (HTM, 8 KB) 27183 views
24 May 2004 Read Abstract
A Glossary of Analog-to-Digital Specifications and Performance Characteristics (Rev. A) (HTM, 8 KB) 17993 views
12 Jan 2008 Read Abstract
Synchronizing the ADS1271 (HTM, 8 KB) 928 views
27 Oct 2005 Read Abstract
Programming Tricks for Higher Conversion Speeds Utilizing Delta Sigma Converters (HTM, 8 KB) 4552 views
27 Sep 2000 Read Abstract
Giving Delta-Sigma Converters a Gain Boost with a Front End Analog Gain Stage (HTM, 8 KB) 4823 views
27 Sep 2000 Read Abstract
Interleaving Analog-to-Digital Converters (HTM, 8 KB) 7723 views
02 Oct 2000 Read Abstract
Analog-to-Digital Converter Grounding Practices Affect System Performance (HTM, 8 KB) 14605 views
02 Oct 2000 Read Abstract
Principles of Data Acquisition and Conversion (HTM, 8 KB) 16319 views
02 Oct 2000 Read Abstract
High Speed Data Conversion (HTM, 8 KB) 22501 views
02 Oct 2000 Read Abstract
What Designers Should Know About Data Converter Drift (HTM, 8 KB) 9931 views
02 Oct 2000 Read Abstract

View Application Notes for Analog to Digital Converter

User Guides

ADS1271EVM User's Guide (Rev. B) (PDF, 388 KB) 3719 views
29 Feb 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
ADS1271 Evaluation Module (EVM)	ADS1271EVM	Texas Instruments	Development Boards/EVMs
ADS1271 Performance Demonstration Kit (PDK)	ADS1271EVM-PDK	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 ) 6153 views 05 May 2008

Part #	Name	Product Family	Comments
ADS1274	Quad, 128kHz, Simultaneous Sampling 24-Bit Delta Sigma ADC	DATA CONVERTERS - ANALOG TO DIGITAL CONVERTER	4 channel version of ADS1271
ADS1278	Octal, 128kHz, Simultaneous Sampling 24-Bit Delta Sigma ADC	DATA CONVERTERS - ANALOG TO DIGITAL CONVERTER	8 channel version of ADS1271
ADS1255	24 Bit, 30kSPS Very Low Noise Delta-Sigma ADC	DATA CONVERTERS - ANALOG TO DIGITAL CONVERTER	The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.
ADS1281	High Resolution 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. Higher resolution device
ADS1282	Ultra High Resolution Delta Sigma ADC with PGA for Seismic and Energy Exploration	DATA CONVERTERS - ANALOG TO DIGITAL CONVERTER	The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device. 4 channel higher resolution device with onboard PGA
OPA365	2.2V, 50MHz, Low-Noise, Single-Supply Rail-to-Rail Operational Amplifier	PRECISION AMPLIFIER - LOW OFFSET VOLTAGE	50MHz Zero-Crossover Operational Amplifier
OPA333	1.8V, 17uA, 2uV, microPOWER CMOS Zero-Drift Series Operational Amplifier	PRECISION AMPLIFIER - LOW OFFSET VOLTAGE	Ultra-Low Power, Zero-Drift Amplifier
REF5025	Low Noise, Very Low Drift, Precision Voltage Reference	VOLTAGE REFERENCE - SERIES VOLTAGE REFERENCE	Low Noise, Low Drift Precision Series Voltage Reference
THS4521	Very low power rail-to-rail output fully differential amplifier	OPERATIONAL AMPLIFIER - FULLY DIFFERENTIAL AMPLIFIER	Ultra-Low Power, Fully Differential ADC drivers for the ADS127x Delta-Sigma ADC Family
Customers Who Evaluated This Product Also Evaluated...
ADS1278	Octal, 128kHz, Simultaneous Sampling 24-Bit Delta Sigma ADC	DATA CONVERTERS-ANALOG TO DIGITAL CONVERTER	TI customers also evaluated this product.
ADS1672	High Speed High Resolution 625kSPS 24 bit Delta Sigma ADC	DATA CONVERTERS-ANALOG TO DIGITAL CONVERTER	TI customers also evaluated this product.
ADS1281	High Resolution 24-Bit Analog-to Digital Converter	DATA CONVERTERS-ANALOG TO DIGITAL CONVERTER	TI customers also evaluated this product.
ADS1675	4MSPS, 24-Bit Analog-to-Digital Converter	DATA CONVERTERS-ANALOG TO DIGITAL CONVERTER	TI customers also evaluated this product.
ADS1274	Quad, 128kHz, Simultaneous Sampling 24-Bit Delta Sigma ADC	DATA CONVERTERS-ANALOG TO DIGITAL CONVERTER	TI customers also evaluated this product.
ADS1282	Ultra High Resolution Delta Sigma ADC with PGA for Seismic and Energy Exploration	DATA CONVERTERS-ANALOG TO DIGITAL CONVERTER	TI customers also evaluated this product.
ADS1258	24 Bit, Fast Channel Cycling Delta-Sigma ADC	DATA CONVERTERS-ANALOG TO DIGITAL CONVERTER	TI customers also evaluated this product.
ADS1251	ResolutionPlus 24-Bit, 20kHz, Low Power Analog-to-Digital Converter	DATA CONVERTERS-ANALOG TO DIGITAL CONVERTER	TI customers also evaluated this product.
ADS1259	Low-Noise, 14kSPS, 24-Bit Analog-to-Digital Converter	DATA CONVERTERS-ANALOG TO DIGITAL CONVERTER	TI customers also evaluated this product.
ADS1256	24 Bit, 30kSPS Very Low Noise Delta-Sigma ADC with Multiplexer	DATA CONVERTERS-ANALOG TO DIGITAL CONVERTER	TI customers also evaluated this product.
OPA1632	Fully Differential I/O Audio Amplifier	AUDIO AMPLIFIERS-LINE DRIVERS / RECEIVERS	TI customers also evaluated this product.
TL431A	Adjustable Precision Shunt Regulator	VOLTAGE REFERENCE-SHUNT VOLTAGE REFERENCE	TI customers also evaluated this product.

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ADS1271 Status: ACTIVE

24-Bit, 105kSPS Industrial Delta-Sigma ADC

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