ADS7884 Status: ACTIVE

2.7V-5.5V, 10 Bit, 3MSPS, Serial ADC

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Datasheet

10-/8-Bit, 3-MSPS, microPOWER, Miniature SAR Analog-to-Digital Converters (ads7884.pdf, 856 KB)
24 Aug 2007 Download

	ADS7884
Resolution(Bits)	10
Sample Rate (max)	3MSPS
Architecture	SAR
Power Consumption(Typ)(mW)	15
SINAD(dB)	61.7
SNR(dB)	60
SNR(Typ)(dB)	61.8
SFDR(dB)	81
DNL(Max)(+/-LSB)	0.8
INL(Max)(+/-LSB)	0.8
No Missing Codes(Bits)	10
ENOB(Bits)	9.95
No. of Supplies	1
Analog Voltage AV/DD(Min)(V)	2.7
Analog Voltage AV/DD(Max)(V)	5.5
Logic Voltage DV/DD(Min)(V)	2.7
Logic Voltage DV/DD(Max)(V)	5.5
Input Configuration Range	VDD
Rating	Catalog
Pin/Package	6SOT-23
# Input Channels	1
	Samples
	Inventory

Product Information

Features

3-MHz Sample Rate Serial Device
10-Bit Resolution — ADS7884
8-Bit Resolution — ADS7885
Zero Latency
48-MHz Serial Interface
Supply Range: 2.7 V to 5.5 V
Low Power Dissipation:
- 6.8 mW at 3-V V_DD, 2.5 MSPS
- 15 mw at 5-V V_DD, 3 MSPS
±0.3 LSB INL, ±0.3 LSB DNL — ADS7884
±0.15 LSB INL, ±0.1 LSB DNL — ADS7885
61.7 dB SINAD, -81 dB THD — ADS7884
49.8 dB SINAD, -68 dB THD — ADS7885
Unipolar Input Range: 0 V to V_DD
Powerdown Current: 1 µA
Wide Input Bandwidth: 30 MHz at 3 dB
6-Pin SOT23 Package
APPLICATIONS
- Base Band Converters in Radio Communication
- Motor Current/Bus Voltage Sensors in Digital Drives
- Optical Networking (DWDM, MEMS Based Switching)
- Optical Sensors
- Battery Powered Systems
- Medical Instrumentations
- High-Speed Data Acquisition Systems
- High-Speed Closed-Loop Systems

Description

The ADS7884 is a 10-bit, 3-MSPS analog-to-digital converter (ADC), and the ADS7885 is a 8-bit, 3-MSPS ADC. The devices include a capacitor based SAR A/D converter with inherent sample and hold. The serial interface in each device is controlled by the CS and SCLK signals for glueless connections with microprocessors and DSPs. The input signal is sampled with the falling edge of CS, and SCLK is used for conversion and serial data output.

The devices operate from a wide supply range from 2.7 V to 5.5 V. The low power consumption of the devices make them suitable for battery-powered applications. The devices also include a power saving powerdown feature for when the devices are operated at lower conversion speeds.

The high level of the digital input to the device is not limited to device V_DD. This means the digital input can go as high as 5.5 V when device supply is 2.7 V. This feature is useful when digital signals are coming from other circuit with different supply levels. Also this relaxes restriction on power up sequencing.

The ADS7884 and ADS7885 are available in a 6-pin SOT23 package and are specified for operation from -40°C to 125°C.

Pricing / Packaging / CAD Design Tools / Samples

		Price	Packaging			Samples
Device	Status	Price \| Quantity	Package \| Pins	Top Side Marking	Package QTY \| Package Carrier	Samples
ADS7884SDBVR	ACTIVE	2.00 \| 100u	SOT-23 (DBV) \| 6	View	3000 \| LARGE T&R	Purchase Samples
ADS7884SDBVT	ACTIVE	2.20 \| 100u	SOT-23 (DBV) \| 6	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
ADS7884SDBVR	As of 9:20 AM GMT, 15 Oct 2008			As of 9:20 AM GMT, 15 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 4 Dec	8 Weeks	None Reported View Distributors
ADS7884SDBVT	As of 9:20 AM GMT, 15 Oct 2008			As of 9:20 AM GMT, 15 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	7250*	>10k \| 4 Dec	6 Weeks	Americas	Arrow	250
					Avnet	250
					DigiKey	576
					Mouser Electronics	250
					Newark	250
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
ADS7884SDBVR	Pb-Free (RoHS Exempt)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS7884SDBVT	Pb-Free (RoHS Exempt)	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

10-/8-Bit, 3-MSPS, microPOWER, Miniature SAR Analog-to-Digital Converters (ads7884.pdf, 856 KB)
24 Aug 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

ADS788xEVM Users Guide (Rev. B) (slau166b.pdf, 560 KB)
28 Aug 2008 Download

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

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