ADS8513 16-Bit 40kSPS Low-Power Sampling ADC With Internal Reference and Parallel/Serial Interface |

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16-Bit 40kSPS Low-Power Sampling ADC With Internal Reference and Parallel/Serial Interface



The ADS8513 is a complete low-power, single 5V supply, 16-bit sampling analog-to-digital (A/D) converter. It contains a complete 16-bit capacitor-based, successive approximation register (SAR) A/D converter with sample and hold, clock, reference, and serial data interface. The converter can be configured for a variety of input ranges including ±10 V, ±5V, 0V to 10V, and 0.5V to 4.5V. A high-impedance, 0.3V to 2.8V input is also available with input impedance greater than 10MΩ. For most input ranges, the input voltage can swing to 25V or -25V without damage to the converter.

An SPI-compatible serial interface allows data to be synchronized to an internal or external clock. The ADS8513 is specified at 40kSPS sampling rate over the industrial -40°C to +85°C temperature range.


  • 40kSPS Min SamplingRate
  • Very Low Power: 24mW Typ
  • ±3.33V, ±5V, ±10V, 4V, and 10V Input Ranges
  • 89dB SNR with 10kHz Input
  • ±2LSB Max INL
  • -1/+2LSB Max DNL, 16-Bit NMC
  • ±10mV BPZ, ±2.5ppm/°C BPZ Drift
  • 89dB Min SINAD, 102dB Min SFDR
  • Uses Internal or External 2.5-V Reference
  • No External Calibration Resistors Required
  • Single 5V Analog Supply
    • 32.5W Max Power Dissipation
    • 50µW Max Power-Down Mode
  • SPI™-Compatible Serial Port up to 20MHz Master/Slave Feature
  • Global CONV and 3-Stated Bus for Multi-Chip Simultaneous S/H Operation
  • Pin-Compatible With 16-Bit ADS7813 and 12-Bit ADS7812 and ADS8512
  • SO-16 Package
    • Industrial Process Control
    • Test Equipment
    • Robotics
    • DSP Servo Control
    • Medical Instrumentation
    • Portable Data Acquisition Systems

QSPI, SPI are trademarks of Motorola, Inc.

All other trademarks are the property of their respective owners.

WEBENCH® Designer ADS8513


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Part number Order Resolution (Bits) Sample rate (Max) (kSPS) Number of input channels Interface Operating temperature range (C) Package Group Approx. price (US$) Power consumption (Typ) (mW) Package size: mm2:W x L (PKG) Architecture Input type Multi-channel configuration Reference mode Features Input range (Max) (V) Input range (Min) (V) Analog voltage AVDD (Min) (V) Analog voltage AVDD (Max) (V) Digital supply (Min) (V) Digital supply (Max) (V) INL (Max) (+/-LSB) SNR (dB) THD (Typ) (dB) Rating
ADS8513 Order now 16     40     1     SPI     -40 to 85     SOIC | 16     6.00 | 1ku     155     16SOIC: 77 mm2: 7.5 x 10.3 (SOIC | 16)     SAR     Single-Ended         Ext
Oscillator     10     -10     4.75     5.25     4.75     5.25     2     89     -100     Catalog