ADS8484 Status: ACTIVE

18 Bit 1.25MSPS Parallel ADC W/Ref, Pseudo Bipolar, Fully Differential Input

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Datasheet

18Bit 1.25MSPS Pseudo-Bipolar Fully Differential Input, Micropower Sampling ADC (ads8484.pdf, 1174 KB)
29 Jun 2007 Download

	ADS8484
Resolution(Bits)	18
Sample Rate (max)	1.25MSPS
Architecture	SAR
Power Consumption(Typ)(mW)	235
SINAD(dB)	97
SNR(dB)	97
SNR(Typ)(dB)	98.5
SFDR(dB)	121
DNL(Max)(+/-LSB)	+1.5 , -1
INL(Max)(+/-LSB)	2.5
No Missing Codes(Bits)	18
ENOB(Bits)	16
No. of Supplies	2
Analog Voltage AV/DD(Min)(V)	4.75
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
Reference Mode	Int and Ext
Rating	Catalog
Pin/Package	48QFN
# Input Channels	1
	Samples
	Inventory

Customers Who Evaluated This Product Also Evaluated

ADS8382: 18-Bit 600KSPS Serial ADC with Ref and Pseudo Bipolar, Fully Differential Input
ADS8481: 18 Bit 1MSPS parallel ADC W/Ref

Product Information

Features

1.25-MHz Sample Rate
±1.5 LSB Typ, ±2.5 LSB Max INL
+0.8/-0.6 LSB Typ, +1.5/-1 LSB Max DNL
18-Bit NMC Ensured Over Temperature
±0.5-mV Offset Error
TBD-PPM/°C Offset Error Drift
±0.1 %FSR Gain Error
±TBD-PPM/°C Gain Error Drift
99dB SNR, -117db THD, 120dB SFDR
Zero Latency
Low Power: 235 mW Typ at 1.25 MSPS
Pseudo-Bipolar Fully Differential Input Range: V_ref to -Vref
Onboard Reference with TBD PPM/°C Drift
Onboard Reference Buffer
High-Speed Parallel Interface
Wide Digital Supply 2.7 V to 5.25 V
8-/16-/18-Bit Bus Transfer
48-Pin 7x7 QFN Package
APPLICATIONS
- Medical Instruments
- Optical Networking
- Transducer Interface
- High Accuracy Data Acquisition Systems
- Magnetometers

Description

The ADS8484 is an 18-bit, 1.25-MSPS A/C converter with an internal 4.096-V reference and a pseudo-bipolar, fully differential input. The device includes a 18-bit capacitor-based SAR A/D converter with inherent sample and hold. The ADS8484 offers a full 18-bit interface, a 16-bit option where data is read using two read cycles, or an 8-bit bus option using three read cycles.

The ADS8484 is available in a 48-lead 7x7 QFN package and is characterized over the industrial -40°C to 85°C temperature range.

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	Samples
ADS8484IBRGZR	ACTIVE	-40 to 85	28.75 \| 1ku	QFN (RGZ) \| 48	View	1000 \| LARGE T&R	Purchase Samples
ADS8484IBRGZRG4	ACTIVE	-40 to 85	28.75 \| 1ku	QFN (RGZ) \| 48	View	1000 \| LARGE T&R		Purchase Samples
ADS8484IBRGZT	ACTIVE	-40 to 85	30.90 \| 1ku	QFN (RGZ) \| 48	View	250 \| SMALL T&R
ADS8484IBRGZTG4	ACTIVE	-40 to 85	30.90 \| 1ku	QFN (RGZ) \| 48	View	250 \| SMALL T&R
ADS8484IRGZR	ACTIVE	-40 to 85	21.25 \| 1ku	QFN (RGZ) \| 48	View	1000 \| LARGE T&R	Purchase Samples
ADS8484IRGZRG4	ACTIVE	-40 to 85	21.25 \| 1ku	QFN (RGZ) \| 48	View	1000 \| LARGE T&R		Purchase Samples
ADS8484IRGZT	ACTIVE	-40 to 85	23.40 \| 1ku	QFN (RGZ) \| 48	View	250 \| SMALL T&R
ADS8484IRGZTG4	ACTIVE	-40 to 85	23.40 \| 1ku	QFN (RGZ) \| 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

	TI Inventory Status			Reported Distributor Inventory
ADS8484IBRGZR	As of 10:16 AM GMT, 19 Nov 2008			As of 10:16 AM GMT, 19 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*		20 Weeks	None Reported View Distributors
ADS8484IBRGZRG4	As of 10:16 AM GMT, 19 Nov 2008			As of 10:16 AM GMT, 19 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*		20 Weeks	None Reported View Distributors
ADS8484IBRGZT	As of 10:16 AM GMT, 19 Nov 2008			As of 10:16 AM GMT, 19 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*		20 Weeks	Americas	DigiKey	166
	0*		20 Weeks	Americas	Rochester Electronics	34
ADS8484IBRGZTG4	As of 10:16 AM GMT, 19 Nov 2008			As of 10:16 AM GMT, 19 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*		20 Weeks	None Reported View Distributors
ADS8484IRGZR	As of 10:16 AM GMT, 19 Nov 2008			As of 10:16 AM GMT, 19 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*		20 Weeks	None Reported View Distributors
ADS8484IRGZRG4	As of 10:16 AM GMT, 19 Nov 2008			As of 10:16 AM GMT, 19 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*		20 Weeks	None Reported View Distributors
ADS8484IRGZT	As of 10:16 AM GMT, 19 Nov 2008			As of 10:16 AM GMT, 19 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*		20 Weeks	Americas	DigiKey	132
ADS8484IRGZTG4	As of 10:16 AM GMT, 19 Nov 2008			As of 10:16 AM GMT, 19 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*		20 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
ADS8484IBRGZR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS8484IBRGZRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS8484IBRGZT	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS8484IBRGZTG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS8484IRGZR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS8484IRGZRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS8484IRGZT	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS8484IRGZTG4	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

Datasheets

18Bit 1.25MSPS Pseudo-Bipolar Fully Differential Input, Micropower Sampling ADC (ads8484.pdf, 1174 KB)
29 Jun 2007 Download

Application Notes

A Glossary of Analog-to-Digital Specifications and Performance Characteristics (Rev. A) (sbaa147a.htm, 8 KB)
12 Jan 2008 Abstract
Shelf-Life Evaluation of Lead-Free Component Finishes (szza046.htm, 8 KB)
24 May 2004 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

View Application Notes for Analog to Digital Converters

User Guides

ADS848xEVM User's Guide (Rev. A) (slau186a.htm, 8 KB)
09 Sep 2008 Abstract

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
Jitter and SNR calculator(slac133.zip, 2 KB ) 24 Apr 2007 zip

Alternative Products - Are similar to ADS8484
Part #	Name	Comments
ADS8481	18 Bit 1MSPS parallel ADC W/Ref	The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device. Has a serial input interface
ADS8482	18 Bit 1MSPS Parallel ADC W/Ref, Pseudo Bipolar, Fully Differential Input	The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.
ADS8472	16-Bit 1MSPS 0.65 LSB Max INL Precision ADC with Parallel Interface and Reference	The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device. 16 bit equivalent device
Customers Who Evaluated This Product Also Evaluated...
ADS8382	18-Bit 600KSPS Serial ADC with Ref and Pseudo Bipolar, Fully Differential Input	TI customers also evaluated this product.
ADS8481	18 Bit 1MSPS parallel ADC W/Ref	TI customers also evaluated this product.

Complementary Products - Can be used with ADS8484
Part #	Name	Product Family	Comments
THS4131	Fully Differential Input/Output Low Noise Amplifier	OPERATIONAL AMPLIFIERS- FULLY DIFFERENTIAL AMPLIFIERS	OPERATIONAL AMLIFIER
THS4130	Fully Differential Input/Output Low Noise Amplifier With Shutdown	OPERATIONAL AMPLIFIERS- FULLY DIFFERENTIAL AMPLIFIERS	OPERATIONAL AMLIFIER
REF5040	Low Noise, Very Low Drift, Precision VOLTAGE REFERENCE	REFERENCES- SERIES VOLTAGE REFERENCES	SERIES VOLTAGE REFERENCE

ADS8484 Status: ACTIVE

18 Bit 1.25MSPS Parallel ADC W/Ref, Pseudo Bipolar, Fully Differential Input

See Also

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Datasheet

Customers Who Evaluated This Product Also Evaluated