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ADS1158 Status: ACTIVE

16 bit, 16 Channel Fast Cycling 125kSPS Delta Sigma ADC


      
         
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See Also

  • ADS1258 - The device has the SAME FUNCTIONALITY and PINOUT as the compared device but is NOT an exact equivalent.  The ADS1158 is a 16 bit pin compatible version of the ADS1258.
  • ADS1178 - The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.  The ADS1178 is an 8 channel differential input simultaneous sampling alternative.

Datasheet

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Functional Block Diagram


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 ADS1158ADS1258 
Resolution(Bits)16  24  
Sample Rate (max)125KSPS  125kSPS  
ArchitectureDelta-Sigma  Delta-Sigma  
Power Consumption(Typ)(mW)42  42  
DNL(Max)(+/-LSB)1  1  
INL(Max)(+/-LSB)1  0.0003%  
No Missing Codes(Bits)16  24  
ENOB(Bits)16  21.6  
No. of Supplies2  2  
Analog Voltage AV/DD(Min)(V)4.75  4.75  
Analog Voltage AV/DD(Max)(V)5.25  5.25  
Logic Voltage DV/DD(Min)(V)2.5  2.5  
Logic Voltage DV/DD(Max)(V)3.6  3.6  
Input Configuration Range1.06 Vref  1.06Vref  
Reference ModeExt  Ext  
RatingCatalog  Catalog  
Pin/Package48QFN  48QFN  
# Input Channels16  16  
 SamplesSamples
 InventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • ADS1178: Octal, Simultaneous Sampling, 16-Bit Analog-to-Digitalconverter
  • ADS1258: 24 Bit, Fast Channel Cycling Delta-Sigma ADC
  • ADS1115: 16-Bit ADC with Integrated MUX, PGA, Comparator, Oscillator, and Reference
  • TPS54620: 4.5V to 17V Input, 6A Synchronous Step Down SWIFT™ Converter
  • OPA2277: High Precision Operational Amplifiers
  • PGA205: Programmable Gain Instrumentation Amplifier

More Related Products

Product Information

Features

  • 16 Bits, No Missing Codes
  • Fixed-Channel or Automatic Channel Scan
  • Fixed-Channel Data Rate: 125kSPS
  • Auto-Scan Data Rate: 23.7kSPS/Channel
  • Single-Conversion Settled Data
  • 16 Single-Ended or 8 Differential Inputs
  • Unipolar (+5V) or Bipolar (±2.5V) Operation
  • 0.3LSB (INL)
  • DC Stability:
    1µV/°C Offset Drift, 2ppm/°C Gain Drift
  • Open-Sensor Detection
  • Conversion Control Pin
  • Multiplexer Output for External Signal Conditioning
  • On-Chip Temperature, Reference, Offset, Gain, and Supply Voltage Readback
  • 42mW Power Dissipation
  • Standby, Sleep, and Power-Down Modes
  • Eight General-Purpose Inputs/Outputs (GPIO)
  • 32.768kHz Crystal Oscillator or External Clock
  • APPLICATIONS
    • Medical, Avionics, and Process Control
    • Machine and System Monitoring
    • Fast Scan Multi-Channel Instrumentation
    • Industrial Systems
    • Test and Measurement Systems

Description

The ADS1158 is a 16-channel (multiplexed), low-noise, 16-bit, delta-sigma (√Δ) analog-to-digital converter (ADC) that provides single-cycle settled data at channel scan rates from 1.8k to 23.7k samples per second (SPS) per channel. A flexible input multiplexer accepts combinations of eight differential or 16 single-ended inputs with a full-scale differential range of 5V or true bipolar range of ±2.5V when operating with a 5V reference. The fourth-order delta-sigma modulator is followed by a fifth-order sinc digital filter optimized for low-noise performance.

The differential output of the multiplexer is accessible to allow signal conditioning before the input of the ADC. Internal system monitor registers provide supply voltage, temperature, reference voltage, gain, and offset data.

An onboard PLL generates the system clock from a 32.768kHz crystal, or can be overridden by an external clock source. A buffered system clock output (15.7MHz) is provided to drive a microcontroller or additional converters.

Serial digital communication is handled via an SPI-compatible interface. A simple command word structure controls channel configuration, data rates, digital I/O, monitor functions, etc.

Programmable sensor bias current sources can be used to bias sensors or verify sensor integrity.

The ADS1158 operates from a unipolar +5V or bipolar ±2.5V analog supply and a digital supply compatible with interfaces ranging from 2.7V to 5.25V. The ADS1158 is available in a QFN-48 package.

Revision History

NOTE: Page numbers for previous revisions may differ from page numbers in the current version.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSamples
ADS1158IRTCRACTIVE-40 to 1055.95 | 1kuQFN (RTC) | 48 View 2500 | LARGE T&RPurchase Samples
ADS1158IRTCRG4ACTIVE-40 to 1055.95 | 1kuQFN (RTC) | 48 View 2500 | LARGE T&RPurchase Samples
ADS1158IRTCTACTIVE-40 to 1056.55 | 1kuQFN (RTC) | 48 View 250 | SMALL T&R
ADS1158IRTCTG4ACTIVE-40 to 1056.55 | 1kuQFN (RTC) | 48 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 12:11 PM GMT, 06 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 8 WeeksADS1158IRTCR
AmericasArrow >1k
WorldwideDigiKey  Available
TI Lead Time*: 8 WeeksADS1158IRTCRG4
WorldwideDigiKey  Available
TI Lead Time*: 8 WeeksADS1158IRTCT
AmericasAvnet 250
Newark 158
AsiaFarnell Asia 158
WPI 104
EuropeCompel 2
WorldwideDigiKey 450
Mouser Electronics 240
TI Lead Time*: 8 WeeksADS1158IRTCTG4
WorldwideDigiKey  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 ContentDPPM / MTBF / FIT Rate
DeviceEco Plan* Lead / Ball FinishMSL Rating / Peak ReflowDetailsDetails
ADS1158IRTCR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
ADS1158IRTCRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
ADS1158IRTCT RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
ADS1158IRTCTG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU 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 ADS1158 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
ADS1158 Evaluation ModuleADS1158EVMTexas InstrumentsDevelopment Boards/EVMs
ADS1158 Performance Development KitADS1158EVM-PDKTexas InstrumentsDevelopment Boards/EVMs
ADCPro(TM) Analog-to-Digital Converter Evaluation SoftwareADCPRO Texas Instruments Application Software 

Part # Name Product Family Comments
ADS1258   24 Bit, Fast Channel Cycling Delta-Sigma ADC   DATA CONVERTERS - ANALOG TO DIGITAL CONVERTER   The device has the SAME FUNCTIONALITY and PINOUT as the compared device but is NOT an exact equivalent.  The ADS1158 is a 16 bit pin compatible version of the ADS1258.  
ADS1178   Octal, Simultaneous Sampling, 16-Bit Analog-to-Digitalconverter   DATA CONVERTERS - ANALOG TO DIGITAL CONVERTER   The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.  The ADS1178 is an 8 channel differential input simultaneous sampling alternative.  
OPA333   1.8V, 17uA, 2uV, microPOWER CMOS Zero-Drift Series Operational Amplifier   PRECISION AMPLIFIER - LOW OFFSET VOLTAGE   Op Amp    
OPA227   High Precision, Low Noise Operational Amplifiers   PRECISION AMPLIFIER - LOW OFFSET VOLTAGE   Op Amp    
OPA211   1.1nV/rtHz Noise, Low Power, Precision Operational Amplifier in Tiny DFN-8 Package   PRECISION AMPLIFIER - LOW NOISE   Op Amp    
INA118   Precision, Low Power Instrumentation Amplifier   INSTRUMENTATION AMPLIFIER - SINGLE SUPPLY   Instrumentation Amp    
REF5040   Low Noise, Very Low Drift, Precision VOLTAGE REFERENCE   VOLTAGE REFERENCE - SERIES VOLTAGE REFERENCE   Reference    
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ADS1115 16-Bit ADC with Integrated MUX, PGA, Comparator, Oscillator, and Reference DATA CONVERTERS-ANALOG TO DIGITAL CONVERTER TI customers also evaluated this product.
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