ADS1254 Status: ACTIVE

24-Bit, 20kHz, Low Power Analog-to-Digital Converter

Burr-Brown

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Datasheet

24-Bit, 20kHz, Low Power Analog-to-Digital Converter (Rev. B) (PDF 644 KB) 4871 views
29 Jun 2006

	ADS1250	ADS1251	ADS1252	ADS1253	ADS1254	ADS1255	ADS1258
Resolution(Bits)	20	24	24	24	24	24	24
Sample Rate (max)	25kSPS	20kSPS	41kSPS	20kSPS	20kSPS	30kSPS	125kSPS
Architecture	Delta-Sigma	Delta-Sigma	Delta-Sigma	Delta-Sigma	Delta-Sigma	Delta-Sigma	Delta-Sigma
Power Consumption(Typ)(mW)	75	7.5	40	7.5	4.36	36	42
DNL(Max)(+/-LSB)	1	1	1	1	1	2	1
INL(Max)(+/-LSB)	0.0012%	0.0002%	0.0003%	0.0002%	0.0002%	0.0003%	0.0003%
No Missing Codes(Bits)	20	24	24	24	24	24	24
ENOB(Bits)	18	19	19	19	19	23	21.6
No. of Supplies	1	1	1	1	2	2	2
Analog Voltage AV/DD(Min)(V)	4.75	4.75	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	5.25	5.25
Logic Voltage DV/DD(Min)(V)	4.75	4.75	4.75	4.75	1.8	1.8	2.5
Logic Voltage DV/DD(Max)(V)	5.25	5.25	5.25	5.25	3.6	3.6	3.6
Input Configuration Range	Vref/PGA (1-8)	Vref	Vref	Vref	Vref	2Vref/PGA(1-64)	1.06Vref
Reference Mode	Ext	Ext	Ext	Ext	Ext	Ext	Ext
Rating	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog
Pin/Package	16SOIC	8SOIC	8SOIC	16SSOP/QSOP	20SSOP/QSOP	20SSOP	48QFN
# Input Channels	1	1	1	4	4	2	16
	Samples	Samples	Samples	Samples	Samples	Samples	Samples
	Inventory	Inventory	Inventory	Inventory	Inventory	Inventory	Inventory

Customers Who Evaluated This Product Also Evaluated

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Product Information

Features

24 BITS—NO MISSING CODES
19 BITS EFFECTIVE RESOLUTION UP TO 20kHz DATA RATE
LOW NOISE: 1.8ppm
FOUR DIFFERENTIAL INPUTS
INL: 15ppm (max)
EXTERNAL REFERENCE (0.5V to 5V)
POWER-DOWN MODE
SYNC MODE
LOW POWER: 4mW at 20kHz
SEPARATE DIGITAL SUPPLY 1.8V to 3.6V
APPLICATIONS
- CARDIAC DIAGNOSTICS
- DIRECT THERMOCOUPLE INTERFACES
- BLOOD ANALYSIS
- INFRARED PYROMETERS
- LIQUID/GAS CHROMATOGRAPHY
- PRECISION PROCESS CONTROL

All trademarks are the property of their respective owners.

Description

The ADS1254 is a precision, wide dynamic range, delta-sigma, Analog-to-Digital (A/D) converter with 24-bit resolution. The delta-sigma architecture is used for wide dynamic range and to ensure 24 bits of no missing codes performance. An effective resolution of 19 bits (1.8ppm of rms noise) is achieved for conversion rates up to 20kHz.

The ADS1254 is designed for high-resolution measurement applications in cardiac diagnostics, smart transmitters, industrial process control, weight scales, chromatography, and portable instrumentation. The converter includes a flexible, two-wire synchronous serial interface for low-cost isolation.

The ADS1254 is a multi-channel converter and is offered in an SSOP-20 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
ADS1254E	ACTIVE	-40 to 85	7.90 \| 1ku	SSOP/QSOP (DBQ) \| 20	View	56 \| TUBE	Purchase Samples
ADS1254E/2K5	ACTIVE	-40 to 85	7.20 \| 1ku	SSOP/QSOP (DBQ) \| 20	View	2500 \| LARGE T&R
ADS1254E/2K5G4	ACTIVE	-40 to 85	7.20 \| 1ku	SSOP/QSOP (DBQ) \| 20	View	2500 \| LARGE T&R
ADS1254EG4	ACTIVE	-40 to 85	7.90 \| 1ku	SSOP/QSOP (DBQ) \| 20	View	56 \| TUBE	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
ADS1254E	As of 12:12 PM GMT, 03 Jul 2009	As of 12:12 PM GMT, 03 Jul 2009
	Lead Time	Region	Company	In Stock	Purchase
	4 Weeks	Americas	Arrow	>1k
			Avnet	>1k
			DigiKey	381
			Mouser Electronics	281
			Newark	108
			Rochester Electronics	29
		Asia	WPI	192
		Europe	Arrow Northern Europe	28
			Avnet-SILICA	300
			Compel	489
ADS1254E/2K5	As of 12:12 PM GMT, 03 Jul 2009	As of 12:12 PM GMT, 03 Jul 2009
	Lead Time	Region	Company	In Stock	Purchase
	6 Weeks	Americas	Avnet	>1k
	6 Weeks	Americas	DigiKey	>1k
ADS1254E/2K5G4	As of 12:12 PM GMT, 03 Jul 2009	As of 12:12 PM GMT, 03 Jul 2009
	Lead Time	Region	Company	In Stock	Purchase
	6 Weeks	Americas	DigiKey	Available
ADS1254EG4	As of 12:12 PM GMT, 03 Jul 2009	As of 12:12 PM GMT, 03 Jul 2009
	Lead Time	Region	Company	In Stock	Purchase
	4 Weeks	Americas	DigiKey	Available
	4 Weeks	Europe	EBV Elektronik	28
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
ADS1254E	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS1254E/2K5	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS1254E/2K5G4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS1254EG4	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 ADS1254

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
DCPFREETOOL Software Plug-In to Code Composer Studio	DCPFREETOOL	Texas Instruments	Utilities/Plug-Ins

Part #	Name	Product Family	Comments
ADS1251	ResolutionPlus 24-Bit, 20kHz, Low Power Analog-to-Digital Converter		The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device. Single channel version of ADS1254
ADS1253	24-Bit, 20kHz, Low Power Analog-to-Digital Converter		The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.
ADS1258	24 Bit, Fast Channel Cycling Delta-Sigma ADC		The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device. 8 channel differential input with very high resolution
OPA333	1.8V, 17uA, 2uV, microPOWER CMOS Zero-Drift Series Operational Amplifier	PRECISION AMPLIFIERS - LOW OFFSET VOLTAGE	OPERATIONAL AMPLIFIER
OPA277	High Precision Operational Amplifiers	PRECISION AMPLIFIERS - LOW OFFSET VOLTAGE	OPERATIONAL AMPLIFIER
REF5025	Low Noise, Very Low Drift, Precision Voltage Reference	REFERENCES - SERIES VOLTAGE REFERENCES	SERIES VOLTAGE REFERENCE
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