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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

Download - PDF Icon
  • 16-Channel, 16-Bit Analog-to-Digital Converter (Rev. B) (ads1158.pdf, 935 KB)
    24 Sep 2008 Download

 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   
No. of Supplies2  2  
Analog Voltage AV/DD(Min)(V)4.75  4.75  
Analog Voltage AV/DD(Max)(V)5.5  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

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 1057.45 | 100uQFN (RTC) | 48 View 2500 | LARGE T&RPurchase Samples
ADS1158IRTCRG4ACTIVE-40 to 1057.45 | 100uQFN (RTC) | 48 View 2500 | LARGE T&RPurchase Samples
ADS1158IRTCTACTIVE-40 to 1058.20 | 100uQFN (RTC) | 48 View 250 | SMALL T&R
ADS1158IRTCTG4ACTIVE-40 to 1058.20 | 100uQFN (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

  TI Inventory Status Reported Distributor Inventory
ADS1158IRTCRAs of 9:22 AM GMT, 15 Oct 2008As of 9:22 AM GMT, 15 Oct 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 5000* 173 | 15 Oct 1 Weeks None Reported
View Distributors		   
 >10k | 1 Dec     
ADS1158IRTCRG4As of 9:22 AM GMT, 15 Oct 2008As of 9:22 AM GMT, 15 Oct 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 5000* 173 | 15 Oct 1 Weeks None Reported
View Distributors		   
 >10k | 1 Dec     
ADS1158IRTCTAs of 9:22 AM GMT, 15 Oct 2008As of 9:22 AM GMT, 15 Oct 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 3500* >10k | 21 Nov 1 Weeks AmericasArrow 250
  DigiKey 645
  Mouser Electronics 250
  Newark 250
ADS1158IRTCTG4As of 9:22 AM GMT, 15 Oct 2008As of 9:22 AM GMT, 15 Oct 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 3500* >10k | 21 Nov 1 Weeks None Reported
View Distributors		   
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
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

Datasheets

  • 16-Channel, 16-Bit Analog-to-Digital Converter (Rev. B) (ads1158.pdf, 935 KB)
    24 Sep 2008 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

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

 Alternative Products - Are similar to ADS1158
Part #NameComments
ADS1258 24 Bit, Fast Channel Cycling Delta-Sigma ADC 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 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. 
 Complementary Products - Can be used with ADS1158
Part #NameProduct FamilyComments
OPA333 1.8V, 17uA, 2uV, microPOWER CMOS Zero-Drift Series Operational Amplifier PRECISION AMPLIFIERS- LOW OFFSET VOLTAGE Op Amp   
OPA227 High Precision, Low Noise Operational Amplifiers PRECISION AMPLIFIERS- LOW OFFSET VOLTAGE Op Amp  
OPA211 1.1nV/rtHz Noise, Low Power, Precision Operational Amplifier in Tiny DFN-8 Package PRECISION AMPLIFIERS- LOW OFFSET VOLTAGE Op Amp  
INA118 Precision, Low Power Instrumentation Amplifier INSTRUMENTATION AMPLIFIERS- SINGLE SUPPLY Instrumentation Amp  
REF5040 Low Noise, Very Low Drift, Precision VOLTAGE REFERENCE REFERENCES- SERIES VOLTAGE REFERENCES Reference  

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