ADS1218 Status: ACTIVE

24-Bit, 780 SPS ADC w/FLASH Memory, 8 CH, Vref, Buffer, 2 IDACs, Serial Out, Digital I/O, Low Power

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Datasheet

8-Channel, 24-Bit, Analog-to-Digital Converter with FLASH Memory (Rev. C) (PDF 868 KB)
26 Sep 2005

	ADS1218
Resolution(Bits)	24
Sample Rate (max)	780SPS
Architecture	Delta-Sigma
Power Consumption(Typ)(mW)	0.8
DNL(Max)(+/-LSB)	1
INL(Max)(+/-LSB)	0.0015%
No Missing Codes(Bits)	24
ENOB(Bits)	22
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	Int
Rating	Catalog
Pin/Package	48TQFP
# Input Channels	8
	Samples
	Inventory

Customers Who Evaluated This Product Also Evaluated

ADS5560: 16-bit 40MSPS Low Power ADC with Selectable LVDS/CMOS Outputs
ADS5562: 16-bit 80MSPS Low Power ADC with Selectable LVDS/CMOS Outputs
ADS1216: 24-Bit Analog-to-Digital Converter
DIR9001: 96kHz Digital Audio Receiver
OPA2111: Dual Low-Noise Difet(R) Operational Amplifier
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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)
4K BYTES OF FLASH MEMORY PROGRAMMABLE FROM 2.7V TO 5.25V
PGA FROM 1 TO 128
SINGLE CYCLE SETTLING MODE
PROGRAMMABLE DATA OUTPUT RATES UP TO 1kHz
PRECISION ON-CHIP 1.25V/2.5V REFERENCE:
ACCURACY: 0.2%
DRIFT: 5ppm/°C
EXTERNAL DIFFERENTIAL REFERENCE OF 0.1V TO 2.5V
ON-CHIP CALIBRATION
PIN-COMPATIBLE WITH ADS1216
SPI™ COMPATIBLE
2.7V TO 5.25V
< 1mW POWER CONSUMPTION
APPLICATIONS
- INDUSTRIAL PROCESS CONTROL
- LIQUID/GAS CHROMATOGRAPHY
- BLOOD ANALYSIS
- SMART TRANSMITTERS
- PORTABLE INSTRUMENTATION

View All Features in Datasheet

Description

The ADS1218 is a precision, wide dynamic range, delta-sigma, Analog-to-Digital (A/D) converter with 24-bit resolution and Flash memory 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 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 (D/A) converter 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.

View All Description in Datasheet

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
ADS1218Y/250	ACTIVE	6.90 \| 1ku	TQFP (PFB) \| 48	View	250 \| SMALL T&R
ADS1218Y/250G4	ACTIVE	6.90 \| 1ku	TQFP (PFB) \| 48	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

Reported Distributor Inventory as of 12:20 PM GMT, 20 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 20 WeeksADS1218Y/250
Americas	Avnet	500
Americas	Newark	138
Asia	Farnell Asia	138
Asia	WPI	49
Worldwide	DigiKey	19
TI Lead Time*: 20 WeeksADS1218Y/250G4
Worldwide	DigiKey	Available
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
ADS1218Y/250	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS1218Y/250G4	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 ADS1218

Datasheet

8-Channel, 24-Bit, Analog-to-Digital Converter with FLASH Memory (Rev. C) (PDF, 868 KB)
26 Sep 2005

Application Notes

Thermal and Electrical Properties of Selected Packaging Materials (HTM, 8 KB) 15987 views
04 Oct 2000 Read Abstract
Measuring Temperature with the ADS1216, ADS1217, or ADS1218 (Rev. A) (HTM, 8 KB) 1887 views
17 Feb 2004 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
Measuring Single-Ended 0V-5V Signals with Differential Delta-Sigma ADCs (HTM, 8 KB) 3484 views
25 Aug 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
Calibration Routines and Register Value Generation for the ADS121x Series (HTM, 8 KB) 1005 views
19 Jun 2003 Read Abstract
Ratiometric Conversions: MSC1210, 1211, 1212 (HTM, 8 KB) 957 views
09 Mar 2004 Read Abstract
ADC Gain Calibration—Extending the ADC Input Range in the MSC12xx Devices (HTM, 8 KB) 1515 views
24 Sep 2003 Read Abstract
Inputs Currents for High-Resolution ADCs (HTM, 8 KB) 1661 views
06 Mar 2003 Read Abstract

View Application Notes for Analog to Digital Converter

User Guides

ADS1218EVM Demo Board (PDF, 639 KB) 712 views
01 Jun 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
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
ADS1256	24 Bit, 30kSPS Very Low Noise Delta-Sigma ADC with Multiplexer	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 as compared to ADS1218
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.
ADS1217	8-Channel, 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.
ADS1216	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.
ADS1241	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 a lower sampling rate as compared to ADS1218
OPA277	High Precision Operational Amplifiers	PRECISION AMPLIFIER - LOW OFFSET VOLTAGE	OPERATIONAL AMPLIFIER
OPA211	1.1nV/rtHz Noise, Low Power, Precision Operational Amplifier in Tiny DFN-8 Package	PRECISION AMPLIFIER - LOW NOISE	OPERATIONAL AMPLIFIER
REF5025	Low Noise, Very Low Drift, Precision Voltage Reference	VOLTAGE REFERENCE - SERIES VOLTAGE REFERENCE	SERIES VOLTAGE REFERENCE
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ADS1218 Status: ACTIVE

24-Bit, 780 SPS ADC w/FLASH Memory, 8 CH, Vref, Buffer, 2 IDACs, Serial Out, Digital I/O, Low Power

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Datasheet

Customers Who Evaluated This Product Also Evaluated

Product Information

Features

Description

Pricing / Packaging / CAD Design Tools / Samples

Inventory

Quality & Lead (Pb)-Free Data

Technical Documents

Datasheet

Application Notes

User Guides

Tools & Software

Support and Community

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