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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

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 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
  • ADS7887: 2.35V-5.25V, 10 Bit, 1.25MSPS, Serial ADC
  • REF5020: Low Noise, Very Low Drift, Precision VOLTAGE REFERENCE
  • PGA113: Zero-Drift, Programmable Gain Amplifier with MUX

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

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
ADS7888SDBVRACTIVE-40 to 1250.85 | 1kuSOT-23 (DBV) | 6 View 3000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
ADS7888SDBVTACTIVE-40 to 1250.95 | 1kuSOT-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 1250.85 | 1kuSC70 (DCK) | 6 View 3000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
ADS7888SDCKTACTIVE-40 to 1250.95 | 1kuSC70 (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

Reported Distributor Inventory as of 12:10 PM GMT, 08 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 4 WeeksADS7888SDBVR
WorldwideDigiKey  Available
TI Lead Time*: 1 WeekADS7888SDBVT
AmericasNewark 420
Rochester Electronics 750
AsiaFarnell Asia 420
WPI 212
EuropeCompel 72
WorldwideDigiKey 451
Mouser Electronics 82
TI Lead Time*: 4 WeeksADS7888SDCKR
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksADS7888SDCKT
AsiaFarnell Asia 500
WPI 164
EuropeFarnell 500
WorldwideDigiKey 297
Mouser Electronics 550
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 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

Most useful technical documents for ADS7888 Help

Datasheet

Application Notes

View Application Notes for Analog to Digital Converter

User Guides

View User Guides for Analog to Digital Converter

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

Part # Name Product Family Comments
ADS7886   2.35V-5.25V, 12 bit, 1MSPS, Serial ADC   DATA CONVERTERS - ANALOG TO DIGITAL CONVERTER   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   DATA CONVERTERS - ANALOG TO DIGITAL CONVERTER   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   DATA CONVERTERS - ANALOG TO DIGITAL CONVERTER   The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.  Slower version for the ADS7888  
OPA365   2.2V, 50MHz, Low-Noise, Single-Supply Rail-to-Rail Operational Amplifier   PRECISION AMPLIFIER - LOW OFFSET VOLTAGE   OPERATIONAL AMPLIFIER    
OPA333   1.8V, 17uA, 2uV, microPOWER CMOS Zero-Drift Series Operational Amplifier   PRECISION AMPLIFIER - LOW OFFSET VOLTAGE   OPERATIONAL AMPLIFIER    
REF5025   Low Noise, Very Low Drift, Precision Voltage Reference   VOLTAGE REFERENCE - SERIES VOLTAGE REFERENCE   SERIES VOLTAGE REFERENCE    
Customers Who Evaluated This Product Also Evaluated...
ADS7868 1.2V, 8 bit 280KSPS, Serial ADC DATA CONVERTERS-ANALOG TO DIGITAL CONVERTER TI customers also evaluated this product.
ADS7885 2.7V-5.5V, 8 Bit, 3MSPS, Serial ADC DATA CONVERTERS-ANALOG TO DIGITAL CONVERTER TI customers also evaluated this product.
ADS7887 2.35V-5.25V, 10 Bit, 1.25MSPS, Serial ADC DATA CONVERTERS-ANALOG TO DIGITAL CONVERTER TI customers also evaluated this product.
REF5020 Low Noise, Very Low Drift, Precision VOLTAGE REFERENCE VOLTAGE REFERENCE-SERIES VOLTAGE REFERENCE TI customers also evaluated this product.
PGA113 Zero-Drift, Programmable Gain Amplifier with MUX AMPLIFIERS AND LINEAR-PROGRAMMABLE GAIN AMPLIFIER TI customers also evaluated this product.

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