ADS7844 Status: ACTIVE

12-Bit, 8-Channel Serial Output Sampling Analog-To-Digital Converter

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Datasheet

ADS7844: 12-Bit, 8-Channel Serial Output Sampling Analog-To-Digital Converter (Rev. A) (PDF 681 KB)
17 Oct 2003

	ADS7844
Resolution(Bits)	12
Sample Rate (max)	200kSPS
Architecture	SAR
Power Consumption(Typ)(mW)	0.84
SINAD(dB)	72
SNR(dB)	72
SFDR(dB)	78
DNL(Max)(+/-LSB)	1
INL(Max)(+/-LSB)	1
No Missing Codes(Bits)	12
No. of Supplies	1
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
Reference Mode	Ext
Rating	Catalog
Pin/Package	20SSOP, 20SSOP/QSOP
# Input Channels	8
	Samples
	Inventory

Customers Who Evaluated This Product Also Evaluated

ADS8344: 16-Bit, 8-Channel Serial Output Sampling Analog-to-Digital Converter
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SN74CBTLV1G125: Low-Voltage Single FET Bus Switch
TL431A: Adjustable Precision Shunt Regulator

Product Information

Features

SINGLE SUPPLY: 2.7V to 5V
8-CHANNEL SINGLE-ENDED OR 4-CHANNEL DIFFERENTIAL INPUT
UP TO 200kHz CONVERSION RATE
±1 LSB MAX INL AND DNL
NO MISSING CODES
72dB SINAD
SERIAL INTERFACE
20-LEAD QSOP AND 20-LEAD SSOP PACKAGES
ALTERNATE SOURCE FOR MAX147
APPLICATIONS
- DATA ACQUISITION
- TEST AND MEASUREMENT
- INDUSTRIAL PROCESS CONTROL
- PERSONAL DIGITAL ASSISTANTS
- BATTERY-POWERED SYSTEMS

All trademarks are the property of their respective owners.

Description

The ADS7844 is an 8-channel, 12-bit sampling analog-to-digital converter (ADC) with a synchronous serial interface. Typical power dissipation is 3mW at a 200kHz throughput rate and a +5V supply. The reference voltage (V_REF) can be varied between 100mV and V_CC, providing a corresponding input voltage range of 0V to V_REF. The device includes a shutdown mode which reduces power dissipation to under 1µW. The ADS7844 is guaranteed down to 2.7V operation.

Low power, high speed, and on-board multiplexer make the ADS7844 ideal for battery- operated systems such as personal digital assistants, portable multichannel data loggers, and measurement equipment. The serial interface also provides low-cost isolation for remote data acquisition.

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
ADS7844E	ACTIVE		3.20 \| 1ku	SSOP/QSOP (DBQ) \| 20	View	50 \| TUBE
ADS7844E/2K5	ACTIVE	-40 to 85	2.90 \| 1ku	SSOP/QSOP (DBQ) \| 20	View	2500 \| LARGE T&R	Purchase Samples
ADS7844E/2K5G4	ACTIVE	-40 to 85	2.90 \| 1ku	SSOP/QSOP (DBQ) \| 20	View	2500 \| LARGE T&R	Purchase Samples
ADS7844EB	ACTIVE		3.75 \| 1ku	SSOP/QSOP (DBQ) \| 20	View	50 \| TUBE
ADS7844EB/2K5	ACTIVE		3.50 \| 1ku	SSOP/QSOP (DBQ) \| 20	View	2500 \| LARGE T&R	Purchase Samples
ADS7844EB/2K5G4	ACTIVE		3.50 \| 1ku	SSOP/QSOP (DBQ) \| 20	View	2500 \| LARGE T&R	Purchase Samples
ADS7844EBG4	ACTIVE		3.75 \| 1ku	SSOP/QSOP (DBQ) \| 20	View	50 \| TUBE
ADS7844EG4	ACTIVE		3.20 \| 1ku	SSOP/QSOP (DBQ) \| 20	View	50 \| TUBE
ADS7844N	ACTIVE		3.20 \| 1ku	SSOP (DB) \| 20	View	70 \| TUBE
ADS7844N/1K	ACTIVE	-40 to 85	2.90 \| 1ku	SSOP (DB) \| 20	View	1000 \| LARGE T&R	Purchase Samples
ADS7844N/1KG4	ACTIVE	-40 to 85	2.90 \| 1ku	SSOP (DB) \| 20	View	1000 \| LARGE T&R	Purchase Samples
ADS7844NB	ACTIVE		3.75 \| 1ku	SSOP (DB) \| 20	View	70 \| TUBE
ADS7844NB/1K	ACTIVE		3.50 \| 1ku	SSOP (DB) \| 20	View	1000 \| LARGE T&R	Purchase Samples
ADS7844NB/1KG4	ACTIVE		3.50 \| 1ku	SSOP (DB) \| 20	View	1000 \| LARGE T&R	Purchase Samples
ADS7844NBG4	ACTIVE		3.75 \| 1ku	SSOP (DB) \| 20	View	70 \| TUBE
ADS7844NG4	ACTIVE		3.20 \| 1ku	SSOP (DB) \| 20	View	70 \| 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 12:18 PM GMT, 20 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 20 WeeksADS7844E
Americas	Avnet	108
Asia	WPI	151
Europe	Spoerle	100
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksADS7844E/2K5
Worldwide	DigiKey	>1k
TI Lead Time*: 20 WeeksADS7844E/2K5G4
Europe	EBV Elektronik	>1k
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksADS7844EB
Asia	WPI	155
Europe	Compel	71
Europe	Spoerle	50
Worldwide	DigiKey	457
Worldwide	Mouser Electronics	24
TI Lead Time*: 20 WeeksADS7844EB/2K5
Americas	Arrow	>1k
Worldwide	DigiKey	>1k
TI Lead Time*: 20 WeeksADS7844EB/2K5G4
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksADS7844EBG4
Asia	Farnell Asia	94
Europe	Farnell	94
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksADS7844EG4
Asia	Farnell Asia	10
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksADS7844N
Americas	Avnet	544
Americas	Newark	81
Asia	Farnell Asia	83
Europe	Abacus Polar	70
	Arrow Northern Europe	140
	Avnet-SILICA	567
Worldwide	DigiKey	>1k
Worldwide	Mouser Electronics	210
TI Lead Time*: 20 WeeksADS7844N/1K
Americas	Arrow	673
Americas	Rochester Electronics	74
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksADS7844N/1KG4
Asia	Farnell Asia	903
Europe	Farnell	881
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksADS7844NB
Americas	Arrow	350
	Newark	41
	Rochester Electronics	51
Worldwide	Mouser Electronics	201
TI Lead Time*: 20 WeeksADS7844NB/1K
None Reported View Distributors
TI Lead Time*: 20 WeeksADS7844NB/1KG4
None Reported View Distributors
TI Lead Time*: 20 WeeksADS7844NBG4
None Reported View Distributors
TI Lead Time*: 20 WeeksADS7844NG4
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
ADS7844E	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS7844E/2K5	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS7844E/2K5G4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS7844EB	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS7844EB/2K5	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS7844EB/2K5G4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS7844EBG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS7844EG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS7844N	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS7844N/1K	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS7844N/1KG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS7844NB	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS7844NB/1K	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS7844NB/1KG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS7844NBG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS7844NG4	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 ADS7844

Datasheet

ADS7844: 12-Bit, 8-Channel Serial Output Sampling Analog-To-Digital Converter (Rev. A) (PDF, 681 KB)
17 Oct 2003

Application Notes

Thermal and Electrical Properties of Selected Packaging Materials (HTM, 8 KB) 15987 views
04 Oct 2000 Read Abstract
Using the ADS7841 and ADS7844 with 15-Clock Cycles (HTM, 8 KB) 560 views
30 Jun 2005 Read Abstract
Apply TI TSC for Various and Multiple Functions (HTM, 8 KB) 2806 views
11 Dec 2006 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
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

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
ADS8344	16-Bit, 8-Channel Serial Output Sampling Analog-to-Digital Converter	DATA CONVERTERS - ANALOG TO DIGITAL CONVERTER	The device has the SAME FUNCTIONALITY and PINOUT as the compared device but is NOT an exact equivalent. 16-bit equivalent unipolar device
ADS8345	16-Bit, 8-Channel Serial Output Sampling Analog-to-Digital Converter	DATA CONVERTERS - ANALOG TO DIGITAL CONVERTER	The device has the SAME FUNCTIONALITY as the compared device, but is not pin-for-pin equivalent and may not be parametrically equivalent. 16-bit equivalent bipolar device
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All End-Equipment

ADS7844 Status: ACTIVE

12-Bit, 8-Channel Serial Output Sampling Analog-To-Digital Converter

See Also

Most Popular Links

Datasheet

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