ADS7842 Status: ACTIVE

12-Bit, 4-Channel Parallel Output Sampling Analog-to-Digital Converter

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Datasheet

12-Bit, 4-Channel Parallel Output Sampling Analog-to-Digital Converter (Rev. C) (PDF 309 KB)
27 Oct 2006

	ADS7842
Resolution(Bits)	12
Sample Rate (max)	200kSPS
Architecture	SAR
Power Consumption(Typ)(mW)	0.84
SINAD(dB)	72
SNR(dB)	72
SFDR(dB)	79
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	28SSOP
# Input Channels	4
	Samples
	Inventory

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Product Information

Features

SINGLE SUPPLY: 2.7V to 5V
4-CHANNEL INPUT MULTIPLEXER
UP TO 200kHz SAMPLING RATE
FULL 12-BIT PARALLEL INTERFACE
±1LSB INL AND DNL
NO MISSING CODES
72dB SINAD
LOW POWER:2mW
SSOP-28 PACKAGE
APPLICATIONS
- DATA ACQUISITION
- TEST AND MEASUREMENT
- INDUSTRIAL PROCESS CONTROL
- MEDICAL INSTRUMENTS
- LABORATORY EQUIPMENT

All trademarks are the property of their respective owners.

Description

The ADS7842 is a complete, 4-channel, 12-bit Analog-to-Digital Converter (ADC). It contains a 12-bit, capacitorbased, Successive Approximation Register (SAR) ADC with a sample-and-hold amplifier, interface for microprocessor use, and parallel, 3-state output drivers. The ADS7842 is specified at a 200kHz sampling rate while dissipating only 2mW of power. The reference voltage can be varied from 100mV to V_CC with a corresponding LSB resolution from 24µV to 1.22mV. The ADS7842 is tested down to 2.7V operation.

Low power, high speed, and an onboard multiplexer make the ADS7842 ideal for battery-operated systems such as portable, multi-channel dataloggers and measurement equipment. The ADS7842 is available in an SSOP-28 package and is tested over the -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	Footprints	Samples
ADS7842E	ACTIVE	-40 to 85	3.65 \| 1ku	SSOP (DB) \| 28	View	50 \| TUBE
ADS7842E/1K	ACTIVE		3.30 \| 1ku	SSOP (DB) \| 28	View	1000 \| LARGE T&R	Purchase Samples
ADS7842E/1KG4	ACTIVE		3.30 \| 1ku	SSOP (DB) \| 28	View	1000 \| LARGE T&R	Purchase Samples
ADS7842EB	ACTIVE		4.30 \| 1ku	SSOP (DB) \| 28	View	50 \| TUBE
ADS7842EB/1K	ACTIVE		3.95 \| 1ku	SSOP (DB) \| 28	View	1000 \| LARGE T&R	Purchase Samples
ADS7842EB/1KG4	ACTIVE		3.95 \| 1ku	SSOP (DB) \| 28	View	1000 \| LARGE T&R	Purchase Samples
ADS7842EBG4	ACTIVE		4.30 \| 1ku	SSOP (DB) \| 28	View	50 \| TUBE
ADS7842EG4	ACTIVE	-40 to 85	3.65 \| 1ku	SSOP (DB) \| 28	View	50 \| 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 12:16 PM GMT, 22 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 20 WeeksADS7842E
Americas	Rochester Electronics	>1k
Asia	WPI	111
Europe	Arrow Southern Europe	26
	Avnet-SILICA	14
	Spoerle	150
TI Lead Time*: 20 WeeksADS7842E/1K
None Reported View Distributors
TI Lead Time*: 20 WeeksADS7842E/1KG4
None Reported View Distributors
TI Lead Time*: 20 WeeksADS7842EB
Americas	Arrow	11
	Avnet	38
	Rochester Electronics	25
Asia	WPI	57
Europe	Arrow Southern Europe	4
	Avnet-SILICA	52
	Spoerle	100
Worldwide	DigiKey	500
TI Lead Time*: 20 WeeksADS7842EB/1K
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksADS7842EB/1KG4
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksADS7842EBG4
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksADS7842EG4
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
ADS7842E	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS7842E/1K	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS7842E/1KG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS7842EB	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS7842EB/1K	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS7842EB/1KG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS7842EBG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS7842EG4	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 ADS7842

Datasheet

12-Bit, 4-Channel Parallel Output Sampling Analog-to-Digital Converter (Rev. C) (PDF, 309 KB)
27 Oct 2006

Application Notes

Interfacing the ADS7842 ADC to the TMS320C5400 and TMS320C6000 DSPs Platforms (HTM, 8 KB) 402 views
13 Jun 2001 Read Abstract
Thermal and Electrical Properties of Selected Packaging Materials (HTM, 8 KB) 16050 views
04 Oct 2000 Read Abstract
Apply TI TSC for Various and Multiple Functions (HTM, 8 KB) 2813 views
11 Dec 2006 Read Abstract
Shelf-Life Evaluation of Lead-Free Component Finishes (HTM, 8 KB) 27231 views
24 May 2004 Read Abstract
A Glossary of Analog-to-Digital Specifications and Performance Characteristics (Rev. A) (HTM, 8 KB) 18014 views
12 Jan 2008 Read Abstract
Interleaving Analog-to-Digital Converters (HTM, 8 KB) 7743 views
02 Oct 2000 Read Abstract
Analog-to-Digital Converter Grounding Practices Affect System Performance (HTM, 8 KB) 14642 views
02 Oct 2000 Read Abstract
Principles of Data Acquisition and Conversion (HTM, 8 KB) 16351 views
02 Oct 2000 Read Abstract
High Speed Data Conversion (HTM, 8 KB) 22549 views
02 Oct 2000 Read Abstract
What Designers Should Know About Data Converter Drift (HTM, 8 KB) 9952 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

Part #	Name	Product Family	Comments
ADS7841	12-Bit, 4-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. Has a serial output interface and differential input configuration
ADS8344	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 8-channel single ended device with serial output interface
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ADS7842 Status: ACTIVE

12-Bit, 4-Channel Parallel Output Sampling Analog-to-Digital Converter

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