ADS7861 Status: ACTIVE

Dual, 500kHz, 12-Bit, 2+2 Ch, Simultaneous Sampling Analog-To-Digital Converter

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Datasheet

Dual, 500kSPS,12-Bit, 2+2 Channel Simultaneous Sampling Analog/Digital Converter (Rev. D) (PDF 908 KB)
14 Aug 2007

	ADS7861
Resolution(Bits)	12
Sample Rate (max)	500kSPS
Architecture	SAR
Power Consumption(Typ)(mW)	25
SINAD(dB)	70
SNR(dB)	71
SFDR(dB)	72
DNL(Max)(+/-LSB)	1
INL(Max)(+/-LSB)	1
No Missing Codes(Bits)	12
ENOB(Bits)	11.34
No. of Supplies	1
Analog Voltage AV/DD(Min)(V)	4.75
Analog Voltage AV/DD(Max)(V)	5.25
Logic Voltage DV/DD(Min)(V)	4.75
Logic Voltage DV/DD(Max)(V)	5.25
Input Configuration Range	+/-2.5 V at 2.5V
Reference Mode	Int and Ext
Rating	Catalog
Pin/Package	24SSOP/QSOP, 32QFN
Comments	250 kSPS per channel
# Input Channels	4
	Samples
	Inventory

Customers Who Evaluated This Product Also Evaluated

ADS7863: Dual, 2MSPS, 12-Bit, 3+3 or 2+2 Channel, Simultaneous Sampling Analog-To-Digital SAR Converter
INA128: Precision, Low Power Instrumentation Amplifiers
TLV5638: 12-Bit, 1 or 3.5 us DAC Serial Input, Dual DAC, Pgrmable Int. Ref., Settling Time, Pwr Consumption

Product Information

Features

4 INPUT CHANNELS
FULLY DIFFERENTIAL INPUTS
2µs TOTAL THROUGHPUT PER CHANNEL
NO MISSING CODES
1MHz EFFECTIVE SAMPLING RATE
LOW POWER: 40mW
SSI SERIAL INTERFACE
OPERATING TEMPERATURE RANGE: 40°C to +125°C
APPLICATIONS
- MOTOR CONTROL
- MULTI-AXIS POSITIONING SYSTEMS
- 3-PHASE POWER CONTROL

All trademarks are the property of their respective owners.

Description

The ADS7861 is a dual, 12-bit, 500kHz, Analog-to-Digital (A/D) converter with four fully differential input channels grouped into two pairs for high speed, simultaneous signal acquisition. Inputs to the sample-and-hold amplifiers are fully differential and are maintained differential to the input of the A/D converter. This provides excellent common-mode rejection of 80dB at 50kHz which is important in high noise environments.

The ADS7861 offers a high-speed, dual serial interface and control inputs to minimize software overhead. The output data for each channel is available as a 12-bit word. The ADS7861 is offered in both an SSOP-24 and a QFN-32 package and is fully specified over the -40°C to +125°C operating range.

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
ADS7861E	ACTIVE	4.50 \| 1ku	SSOP/QSOP (DBQ) \| 24	View	50 \| TUBE
ADS7861E/2K5	ACTIVE	4.05 \| 1ku	SSOP/QSOP (DBQ) \| 24	View	2500 \| LARGE T&R	Purchase Samples
ADS7861E/2K5G4	ACTIVE	4.05 \| 1ku	SSOP/QSOP (DBQ) \| 24	View	2500 \| LARGE T&R	Purchase Samples
ADS7861EB	ACTIVE	5.30 \| 1ku	SSOP/QSOP (DBQ) \| 24	View	50 \| TUBE
ADS7861EB/2K5	ACTIVE	4.90 \| 1ku	SSOP/QSOP (DBQ) \| 24	View	2500 \| LARGE T&R	Purchase Samples
ADS7861EB/2K5G4	ACTIVE	4.90 \| 1ku	SSOP/QSOP (DBQ) \| 24	View	2500 \| LARGE T&R	Purchase Samples
ADS7861EBG4	ACTIVE	5.30 \| 1ku	SSOP/QSOP (DBQ) \| 24	View	50 \| TUBE
ADS7861EG4	ACTIVE	4.50 \| 1ku	SSOP/QSOP (DBQ) \| 24	View	50 \| TUBE
ADS7861IBRHBR	ACTIVE	4.90 \| 1ku	QFN (RHB) \| 32	View	3000 \| LARGE T&R		Purchase Samples
ADS7861IBRHBRG4	ACTIVE	4.90 \| 1ku	QFN (RHB) \| 32	View	3000 \| LARGE T&R		Purchase Samples
ADS7861IBRHBT	ACTIVE	5.30 \| 1ku	QFN (RHB) \| 32	View	250 \| SMALL T&R
ADS7861IBRHBTG4	ACTIVE	5.30 \| 1ku	QFN (RHB) \| 32	View	250 \| SMALL T&R
ADS7861IRHBR	ACTIVE	4.05 \| 1ku	QFN (RHB) \| 32	View	3000 \| LARGE T&R		Purchase Samples
ADS7861IRHBRG4	ACTIVE	4.05 \| 1ku	QFN (RHB) \| 32	View	3000 \| LARGE T&R		Purchase Samples
ADS7861IRHBT	ACTIVE	4.50 \| 1ku	QFN (RHB) \| 32	View	250 \| SMALL T&R
ADS7861IRHBTG4	ACTIVE	4.50 \| 1ku	QFN (RHB) \| 32	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 12:19 PM GMT, 24 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 20 WeeksADS7861E
Americas	Avnet	93
Asia	Farnell Asia	65
Asia	WPI	20
Europe	Arrow Southern Europe	260
	Compel	>1k
	Farnell	59
	Spoerle	50
Worldwide	DigiKey	978
Worldwide	Mouser Electronics	100
TI Lead Time*: 20 WeeksADS7861E/2K5
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksADS7861E/2K5G4
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksADS7861EB
Americas	Arrow	500
Asia	Farnell Asia	35
Asia	WPI	71
Europe	Avnet-SILICA	38
Europe	Farnell	35
Worldwide	DigiKey	>1k
Worldwide	Mouser Electronics	43
TI Lead Time*: 20 WeeksADS7861EB/2K5
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksADS7861EB/2K5G4
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksADS7861EBG4
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksADS7861EG4
Worldwide	DigiKey	Available
TI Lead Time*: 16 WeeksADS7861IBRHBR
Worldwide	DigiKey	Available
TI Lead Time*: 16 WeeksADS7861IBRHBRG4
Worldwide	DigiKey	Available
TI Lead Time*: 16 WeeksADS7861IBRHBT
Worldwide	DigiKey	29
TI Lead Time*: 16 WeeksADS7861IBRHBTG4
Asia	Farnell Asia	20
Europe	Farnell	10
Worldwide	DigiKey	Available
TI Lead Time*: 16 WeeksADS7861IRHBR
Worldwide	DigiKey	Available
TI Lead Time*: 16 WeeksADS7861IRHBRG4
Worldwide	DigiKey	Available
TI Lead Time*: 16 WeeksADS7861IRHBT
Worldwide	DigiKey	>1k
TI Lead Time*: 16 WeeksADS7861IRHBTG4
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
ADS7861E	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS7861E/2K5	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS7861E/2K5G4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS7861EB	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS7861EB/2K5	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS7861EB/2K5G4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS7861EBG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS7861EG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS7861IBRHBR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS7861IBRHBRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS7861IBRHBT	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS7861IBRHBTG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS7861IRHBR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS7861IRHBRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS7861IRHBT	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS7861IRHBTG4	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 ADS7861

Datasheet

Dual, 500kSPS,12-Bit, 2+2 Channel Simultaneous Sampling Analog/Digital Converter (Rev. D) (PDF, 908 KB)
14 Aug 2007

Application Notes

Thermal and Electrical Properties of Selected Packaging Materials (HTM, 8 KB) 16070 views
04 Oct 2000 Read Abstract
Shelf-Life Evaluation of Lead-Free Component Finishes (HTM, 8 KB) 27253 views
24 May 2004 Read Abstract
A Glossary of Analog-to-Digital Specifications and Performance Characteristics (Rev. A) (HTM, 8 KB) 18028 views
12 Jan 2008 Read Abstract
Interleaving Analog-to-Digital Converters (HTM, 8 KB) 7755 views
02 Oct 2000 Read Abstract
Analog-to-Digital Converter Grounding Practices Affect System Performance (HTM, 8 KB) 14663 views
02 Oct 2000 Read Abstract
Principles of Data Acquisition and Conversion (HTM, 8 KB) 16368 views
02 Oct 2000 Read Abstract
High Speed Data Conversion (HTM, 8 KB) 22585 views
02 Oct 2000 Read Abstract
What Designers Should Know About Data Converter Drift (HTM, 8 KB) 9964 views
02 Oct 2000 Read Abstract
Using a SAR A/D Converter for Current Measurement in Motor Control Applications (HTM, 8 KB) 3438 views
28 Aug 2002 Read Abstract
Determining Minimum Acquisition Times for SAR ADCs (HTM, 8 KB) 57 views
11 Nov 2009 Read Abstract

View Application Notes for Analog to Digital Converter

User Guides

5-6 K Interface Board EVM User's Guide (Rev. A) (PDF, 422 KB) 5832 views
27 May 2004
ADS7861/8361 EVM Users Guide (PDF, 71 KB) 1860 views
12 Sep 2002
Errata to ADS7861/8361EVM (SLAU094) (PDF, 9 KB) 560 views
10 Jan 2003
5-6 K Interface Board (Rev. C) (PDF, 375 KB) 5832 views
20 Mar 2009

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
5-6K Interface Evaluation Module	5-6KINTERFACE	Texas Instruments	Development Boards/EVMs
ADS7861 Evaluation Module	ADS7861EVM	Texas Instruments	Development Boards/EVMs
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 ) 6160 views 05 May 2008

Part #	Name	Product Family	Comments
ADS7863	Dual, 2MSPS, 12-Bit, 3+3 or 2+2 Channel, Simultaneous Sampling Analog-To-Digital SAR 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. Equivalent device with higher sampling rate (2MSPS) and additional features (2x3ch mode, programmable reference, power down modes).
ADS8361	16-Bit 500 kSPS 2 ADCs, 4ch, serial out	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 channel equivalent device
ADS7864	500kHz, 12-Bit, 6-Channel Simultaneous 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. 3x2 configuration simultaneous sampling device with parallel output interface
TMS320F2810	32-Bit Digital Signal Controller with Flash	C2000™ 32-BIT MICROCONTROLLERS - 28X FIXED-POINT SERIES
TMS320F2812	32-Bit Digital Signal Controller with Flash	C2000™ 32-BIT MICROCONTROLLERS - 28X FIXED-POINT SERIES
TMS320LC2401A	16-Bit Fixed Point DSP with ROM	C2000™ 32-BIT MICROCONTROLLERS - 24X 16-BIT SERIES
TMS320LF2401A	16-Bit Fixed-Point DSP with Flash	C2000™ 32-BIT MICROCONTROLLERS - 24X 16-BIT SERIES
TMS320LC2402A	16-bit fixed point DSP with ROM	C2000™ 32-BIT MICROCONTROLLERS - 24X 16-BIT SERIES
TMS320LC2404A	16-bit fixed point DSP with ROM	C2000™ 32-BIT MICROCONTROLLERS - 24X 16-BIT SERIES
TMS320LC2406A	16-bit fixed point DSP with ROM	C2000™ 32-BIT MICROCONTROLLERS - 24X 16-BIT SERIES
TMS320LF2402A	16-Bit Fixed-Point DSP with Flash	C2000™ 32-BIT MICROCONTROLLERS - 24X 16-BIT SERIES
TMS320LF2403A	16-Bit Fixed-Point DSP with Flash	C2000™ 32-BIT MICROCONTROLLERS - 24X 16-BIT SERIES
TMS320LF2406A	16-bit fixed point DSP with Flash	C2000™ 32-BIT MICROCONTROLLERS - 24X 16-BIT SERIES
Customers Who Evaluated This Product Also Evaluated...
ADS7863	Dual, 2MSPS, 12-Bit, 3+3 or 2+2 Channel, Simultaneous Sampling Analog-To-Digital SAR Converter	DATA CONVERTERS-ANALOG TO DIGITAL CONVERTER	TI customers also evaluated this product.
INA128	Precision, Low Power Instrumentation Amplifiers	INSTRUMENTATION AMPLIFIER-DUAL SUPPLY	TI customers also evaluated this product.
TLV5638	12-Bit, 1 or 3.5 us DAC Serial Input, Dual DAC, Pgrmable Int. Ref., Settling Time, Pwr Consumption	DATA CONVERTERS-DIGITAL TO ANALOG CONVERTER	TI customers also evaluated this product.

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ADS7861 Status: ACTIVE

Dual, 500kHz, 12-Bit, 2+2 Ch, Simultaneous Sampling Analog-To-Digital Converter

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