ADS8471 16-Bit 1MSPS Psuedo-Differential SAR ADC With Reference | TI.com

ADS8471
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16-Bit 1MSPS Psuedo-Differential SAR ADC With Reference

 

Description

The ADS8471 is an 16-bit, 1-MSPS A/D converter with an internal 4.096-V reference and a pseudo-bipolar, unipolar input. The device includes a 16-bit capacitor-based SAR A/D converter with inherent sample and hold. The ADS8471 offers a full 16-bit interface or an 8-bit bus option using two read cycles.

The ADS8471 is available in a 48-lead 7x7 QFN package and is characterized over the industrial –40°C to 85°C temperature range.

Features

  • 0 to 1 MSPS Sampling Rate
  • ±0.7 LSB Typ, ±1 LSB Max INL
  • ±0.4 LSB Typ, ±0.75 LSB Max DNL
  • 16-Bit NMC Ensured Over Temperature
  • ±0.1 mV Offset Error
  • ±0.15 ppm/°C Offset Error Drift
  • ±0.015% FSR Gain Error
  • ±0.7 ppm/°C Gain Error Drift
  • 93 dB SNR, –110dB THD, 112dB SFDR
  • Zero Latency
  • Low Power: 220 mW at 1 MSPS
  • Unipolar Input Range: 0 V to Vref
  • Onboard Reference
  • Onboard Reference Buffer
  • High-Speed Parallel Interface
  • Wide Digital Supply 2.7 V ~ 5.25 V
  • 8-/16-Bit Bus Transfer
  • 48-Pin 7×7 QFN Package
  • APPLICATIONS
    • Medical Instruments
    • Optical Networking
    • Transducer Interface
    • High Accuracy Data Acquisition Systems
    • Magnetometers

Parametrics

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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
ADS8471 Order now 16     1000     1     Parallel     -40 to 85     VQFN | 48     14.48 | 1ku     220     48VQFN: 49 mm2: 7 x 7 (VQFN | 48)     SAR     Pseudo-Differential
Single-Ended    
    Ext
Int    
Oscillator     4.096     0     4.75     5.25     2.7     5.25     1     93     -112     Catalog