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ADS7888 Status:ACTIVE

2.35V-5.25V, 8 Bit, 1.25MSPS, Serial ADC

      
         
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See Also

  • ADS7886 - The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.  12 bit equivalent device
  • ADS7887 - The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.  10 bit equivalent device
  • ADS7868 - The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.  Slower version for the ADS7888

Datasheet

Download - PDF Icon
  • 10-/8-Bit 1.25-MSPS Micro-Power Miniature SAR ADC (ads7888.pdf, 729 KB)
    24 Jun 2005 Download

 ADS7888
Resolution(Bits)8  
Sample Rate (max)1.25MSPS  
ArchitectureSAR  
Power Consumption(Typ)(mW)3.8  
SINAD(dB)49.5  
SNR(dB)49.5  
SFDR(dB)77  
DNL(Max)(+/-LSB)0.3  
INL(Max)(+/-LSB)0.3  
No Missing Codes(Bits)8  
ENOB(Bits)7.9  
No. of Supplies1  
Analog Voltage AV/DD(Min)(V)2.35  
Analog Voltage AV/DD(Max)(V)5.25  
Logic Voltage DV/DD(Min)(V)2.35  
Logic Voltage DV/DD(Max)(V)5.25  
Input Configuration RangeVDD  
Reference ModeExt  
RatingCatalog  
Pin/Package6SC70,6SOT-23  
# Input Channels1  
 Samples
 Inventory

Customers Who Evaluated This Product Also Evaluated

  • ADS7868: 1.2V, 8 bit 280KSPS, Serial ADC
  • ADS7885: 2.7V-5.5V, 8 Bit, 3MSPS, Serial ADC
  • SN74AHC1G14: Single Schmitt-Trigger Inverter Gate
  • TSC2003: 4-wire Touch Screen Controller
  • SN74AVCA164245: 16-Bit Dual-Supply Bus Transceive W/Configurable Voltage Translation and 3-State

Product Information

Features

  • 1.25-MHz Sample Rate Serial Device
  • 10-Bit Resolution - ADS7887
  • 8-Bit Resolution - ADS7888
  • Zero Latency
  • 25-MHz Serial Interface
  • Supply Range: 2.35 V to 5.25 V
  • Typical Power Dissipation at 1.25 MSPS:
    • 3.8 mW at 3-V VDD
    • 8 mw at 5-V VDD
  • ±0.35 LSB INL, DNL - ADS7887
  • ±0.15 LSB INL, ±0.1 LSB DNL - ADS7888
  • 61dB SINAD, -84 dB THD - ADSA7887
  • 49.5 dB SINAD, -67.5 dB THD - ADS7888
  • Unipolar Input Range: 0 V to VDD
  • Power Down Current: 1 µA
  • Wide Input Bandwidth: 15 MHz at 3 dB
  • 6-Pin SOT23 and SC70 Packages
  • 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 ADS7887 is a 10-bit, 1.25-MSPS analog-to-digital converter (ADC), and the ADS7888 is a 8-bit, 1.25-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 2.35 V to 5.25 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 VDD. This means the digital input can go as high as 5.25 V when device supply is 2.35 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 ADS7887 and ADS7888 are available in 6-pin SOT23 and SC70 packages and are specified for operation from -40°C to 125°C.

    

Pricing / Packaging / CAD Design Tools / Samples

Price ($US)PackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price ($US) | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
ADS7888SDBVRACTIVE-40 to 1251.10 | 100uSOT-23 (DBV) | 6 View 3000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
ADS7888SDBVTACTIVE-40 to 1251.20 | 100uSOT-23 (DBV) | 6 View 250 | SMALL T&R Download CAD Format for this Symbol Download CAD Format for this Footprint
ADS7888SDBVTG4ACTIVE-40 to 125 SOT-23 (DBV) | 6 View   Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
ADS7888SDCKRACTIVE-40 to 1251.10 | 100uSC70 (DCK) | 6 View 3000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
ADS7888SDCKTACTIVE-40 to 1251.20 | 100uSC70 (DCK) | 6 View 250 | SMALL T&R Download CAD Format for this Symbol Download CAD Format for this Footprint
ADS7888SDCKTG4ACTIVE-40 to 125 SC70 (DCK) | 6 View   Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples

* 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
ADS7888SDBVRAs of 9:05 AM GMT, 29 Aug 2008As of 9:05 AM GMT, 29 Aug 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 >10k* >10k | 10 Oct 6 Weeks None Reported
View Distributors		   
ADS7888SDBVTAs of 9:05 AM GMT, 29 Aug 2008As of 9:05 AM GMT, 29 Aug 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 >10k* >10k | 10 Oct 6 Weeks AmericasArrow 250
  Mouser Electronics 572
  AsiaWPI 164
  EuropeEBV Elektronik 125
ADS7888SDCKRAs of 9:05 AM GMT, 29 Aug 2008As of 9:05 AM GMT, 29 Aug 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 >10k* >10k | 16 Oct 6 Weeks None Reported
View Distributors		   
ADS7888SDCKTAs of 9:05 AM GMT, 29 Aug 2008As of 9:05 AM GMT, 29 Aug 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 4106* >10k | 10 Oct 6 Weeks AmericasDigiKey 451
  AsiaWPI 195
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 ContentDPPM / MTBF / FIT Rate
DeviceEco Plan* Lead / Ball FinishMSL Rating / Peak ReflowDetailsDetails
ADS7888SDBVR  Pb-Free (RoHS Exempt) CU SN Level-2-260C-1 YEARViewView
ADS7888SDBVT  Pb-Free (RoHS Exempt) CU SN Level-2-260C-1 YEARViewView
ADS7888SDCKR  Pb-Free (RoHS Exempt) CU SN Level-2-260C-1 YEARViewView
ADS7888SDCKT  Pb-Free (RoHS Exempt) CU SN Level-2-260C-1 YEARViewView

* 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 1.25-MSPS Micro-Power Miniature SAR ADC (ads7888.pdf, 729 KB)
    24 Jun 2005 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

NamePart # Company Tool / Software Type
Anti-Aliasing Calculation Tool for A to D ConvertersANTIALIASINGCALCTexas InstrumentsCalculation Utilities
Op Amp to ADC Circuit Topology CalculatorADC-INPUT-CALCTexas InstrumentsCalculation Utilities
ADS7888EVM Evaluation ModuleADS7888EVMTexas InstrumentsDevelopment Boards/EVMs

 Alternative Products - Are similar to ADS7888
Part #NameComments
ADS7886 2.35V-5.25V, 12 bit, 1MSPS, Serial ADC The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device. 12 bit equivalent device 
ADS7887 2.35V-5.25V, 10 Bit, 1.25MSPS, Serial ADC The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device. 10 bit equivalent device 
ADS7868 1.2V, 8 bit 280KSPS, Serial ADC The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device. Slower version for the ADS7888 
Customers Who Evaluated This Product Also Evaluated...
ADS78681.2V, 8 bit 280KSPS, Serial ADCTI customers also evaluated this product.
ADS78852.7V-5.5V, 8 Bit, 3MSPS, Serial ADCTI customers also evaluated this product.
 Complementary Products - Can be used with ADS7888
Part #NameProduct FamilyComments
OPA365 2.2V, 50MHz, Low-Noise, Single-Supply Rail-to-Rail Operational Amplifier PRECISION AMPLIFIERS- LOW OFFSET VOLTAGE OPERATIONAL AMPLIFIER  
OPA333 1.8V, 17uA, 2uV, microPOWER CMOS Zero-Drift Series Operational Amplifier PRECISION AMPLIFIERS- LOW OFFSET VOLTAGE OPERATIONAL AMPLIFIER  
REF5025 Low Noise, Very Low Drift, Precision VOLTAGE REFERENCE REFERENCES- SERIES VOLTAGE REFERENCES SERIES VOLTAGE REFERENCE  
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