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ADS1178 Status: ACTIVE

Octal, Simultaneous Sampling, 16-Bit Analog-to-Digitalconverter


      
         
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See Also

  • ADS1174 - The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.  4-channel equivalent device
  • ADS1274 - The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.  24-bit 4-channel equivalent device
  • ADS1278 - The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.  24-bit equivalent device
 ADS1174 ADS1178ADS1274 ADS1278 
Resolution(Bits)16  16  24  24  
Sample Rate (max)52kSPS  52kSPS  144kSPS  144kSPS  
ArchitectureDelta-Sigma  Delta-Sigma  Delta-Sigma  Delta-Sigma  
Power Consumption(Typ)(mW)135  245  275  530  
SNR(dB)  111  111  
SNR(Typ)(dB)97  97    
SFDR(dB)106  106  109  109  
DNL(Max)(+/-LSB)1  1  1  1  
INL(Max)(+/-LSB)0.0045%  0.0045%  0.0003%  0.0003%  
No Missing Codes(Bits)16  16  24  24  
No. of Supplies2  2  3  3  
Analog Voltage AV/DD(Min)(V)4.75  4.75  4.75  4.75  
Analog Voltage AV/DD(Max)(V)5.25  5.25  5.25  5.25  
Logic Voltage DV/DD(Min)(V)1.65  1.65  1.65  1.65  
Logic Voltage DV/DD(Max)(V)1.95  1.95  3.6  3.6  
Input Configuration RangeVref  Vref  Vref  Vref  
Reference ModeExt  Ext  Ext  Ext  
RatingCatalog  Catalog  Catalog  Catalog  
Pin/Package64HTQFP  64HTQFP  64HTQFP  64HTQFP  
# Input Channels4  8  4  8  
 SamplesSamplesSamplesSamples
 InventoryInventoryInventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • ADS1158: 16 bit, 16 Channel Fast Cycling 125kSPS Delta Sigma ADC
  • ADS1278: Octal, 128kHz, Simultaneous Sampling 24-Bit Delta Sigma ADC
  • ADS8556: 630kSPS, 6-Channels, Simultaneous Sampling Analog-to-Digital Converter
  • TPS73601: Single Output LDO, 400mA, Adj.(1.2 to 5.5V), Cap free, Low Noise, Reverse Current Protection
  • ISO1050: Isolated 5-V CAN Transceivers
  • REF5025: Low Noise, Very Low Drift, Precision Voltage Reference

More Related Products

Product Information

Features

  • Simultaneously Sample Four/Eight Channels
  • Selectable Operating Modes:
    High-Speed: 52kSPS Data Rate, 31mW/ch
    Low-Power: 10kSPS Data Rate, 7mW/ch
  • AC Performance:
    25kHz Bandwidth
    97dB SNR
    -105dB THD
  • DC Performance:
    2µV/°C Offset Drift
    2ppm/°C Gain Drift
  • Digital Filter:
    Linear Phase Response
    Passband Ripple: ±0.005dB
    Stop Band Attenuation: 100dB
  • Selectable SPI or Frame Sync Serial Interface
  • Simple Pin-Driven Control
  • Low Sampling Aperture Error
  • Specified from -40°C to +105°C
  • Analog Supply: 5V
  • I/O Supply: 1.8V to 3.3V
  • Digital Core Supply: 1.8V
  • APPLICATIONS
    • 3-Phase Power Monitors
    • Defibrillators and ECG Monitors
    • Coriolis Flow Meters
    • Vibration/Modal Analysis

PowerPAD is a trademark of Texas Instruments.
SPI is a trademark of Motorola, Inc.

Description

The ADS1174 (quad) and ADS1178 (octal) are multiple delta-sigma (ΔΣ) analog-to-digital converters (ADCs) with data rates up to 52k samples-per-second (SPS), which allow synchronous sampling of four and eight channels. These devices use identical packages, and are also compatible with the high-performance 24-bit ADS1274 and ADS1278, permitting drop-in upgrades.

The delta-sigma architecture offers near ideal 16-bit ac performance (97dB SNR, -105dB THD, 1LSB linearity) combined with 0.005dB passband ripple and linear phase response.

The high-order, chopper-stabilized modulator achieves very low drift (2µV/°C offset, 2ppm/°C gain) and low noise (1LSBPP). The on-chip finite impulse response (FIR) filter provides a usable signal bandwidth up to 90% of the Nyquist rate with 100dB of stop band attenuation while suppressing modulator and signal out-of-band noise.

Two operating modes allow for optimization of speed and power: High-speed mode (31mW/Ch at 52kSPS), and Low-power mode (7mW/Ch at 10kSPS).

A SYNC input control pin allows the device conversions to be started and synchronized to an external event. SPI and Frame-Sync serial interfaces are supported. The device is fully specified over the extended industrial range (40°C to +105°C) and is available in an HTQFP-64 PowerPAD package.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsSamples
ADS1178IPAPRACTIVE-40 to 8515.95 | 1kuHTQFP (PAP) | 64 View 1000 | LARGE T&R Download CAD Format for this SymbolPurchase Samples
ADS1178IPAPRG4ACTIVE-40 to 8515.95 | 1kuHTQFP (PAP) | 64 View 1000 | LARGE T&R Purchase Samples
ADS1178IPAPTACTIVE-40 to 8516.95 | 1kuHTQFP (PAP) | 64 View 250 | SMALL T&R Download CAD Format for this Symbol
ADS1178IPAPTG4ACTIVE-40 to 8516.95 | 1kuHTQFP (PAP) | 64 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*: 6 WeeksADS1178IPAPR
AsiaWPI 271
WorldwideDigiKey  Available
TI Lead Time*: 6 WeeksADS1178IPAPRG4
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksADS1178IPAPT
AmericasArrow 500
Newark 69
Rochester Electronics >1k
AsiaFarnell Asia 128
EuropeFarnell 123
WorldwideDigiKey 388
Mouser Electronics 1
TI Lead Time*: 20 WeeksADS1178IPAPTG4
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
ADS1178IPAPR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HRViewView
ADS1178IPAPRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HRViewView
ADS1178IPAPT RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HRViewView
ADS1178IPAPTG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HRViewView

* 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 ADS1178 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
ADS1178 Evaluation Module (EVM)ADS1178EVMTexas InstrumentsDevelopment Boards/EVMs
ADS1178 Performance Demonstration Kit (PDK)ADS1178EVM-PDKTexas InstrumentsDevelopment Boards/EVMs
ADCPro(TM) Analog-to-Digital Converter Evaluation SoftwareADCPRO Texas Instruments Application Software 

Part # Name Product Family Comments
ADS1174   Quad, 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.  4-channel equivalent device  
ADS1274   Quad, 128kHz, Simultaneous Sampling 24-Bit Delta Sigma ADC   DATA CONVERTERS - ANALOG TO DIGITAL CONVERTER   The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.  24-bit 4-channel equivalent device  
ADS1278   Octal, 128kHz, Simultaneous Sampling 24-Bit Delta Sigma ADC   DATA CONVERTERS - ANALOG TO DIGITAL CONVERTER   The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.  24-bit equivalent device  
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...
ADS1158 16 bit, 16 Channel Fast Cycling 125kSPS Delta Sigma ADC DATA CONVERTERS-ANALOG TO DIGITAL CONVERTER TI customers also evaluated this product.
ADS1278 Octal, 128kHz, Simultaneous Sampling 24-Bit Delta Sigma ADC DATA CONVERTERS-ANALOG TO DIGITAL CONVERTER TI customers also evaluated this product.
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