ADS7850 SAR ADC, Dual, 750 kSPS, 14 Bit, Simultaneous Sampling | TI.com

ADS7850 (ACTIVE)

SAR ADC, Dual, 750 kSPS, 14 Bit, Simultaneous Sampling

 

Description

The ADS8350, ADS7850, and ADS7250 devices belong to a family of pin-compatible, dual, high-speed, simultaneous-sampling, analog-to-digital converters (ADCs) that support pseudo-differential analog inputs. All devices support a simple serial interface that can operate over a wide power-supply range, enabling easy communication with a large variety of host controllers.

All devices are fully specified over the extended industrial temperature range (–40°C to 125°C) and are available in a pin-compatible, WQFN-16 (3 mm × 3 mm) package.





Features

  • 16-, 14-, and 12-Bit Pin-Compatible Family
  • Simultaneously Samples Two Channels
  • Pseudo-Differential Analog Inputs
  • Fast Throughput: 750 kSPS
  • Excellent DC Performance:
    • Linearity:
      • ADS8350:
        16-Bit NMC DNL, ±2.5 LSB, Max INL
      • ADS7850:
        14-Bit NMC DNL, ±1.5 LSB, Max INL
      • ADS7250:
        12-Bit NMC DNL, ±1 LSB, Max INL
  • Excellent AC Performance:
    • ADS8350: 85-dB SNR, –96-dB THD
    • ADS7850: 81-dB SNR, –90-dB THD
    • ADS7250: 73-dB SNR, –88-dB THD
  • Simple Serial Interface
  • Fully-Specified Over Extended Industrial Temperature Range: –40°C to 125°C
  • Small Footprint: WQFN-16 (3 mm × 3 mm)

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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
ADS7850 Order now 14     750     2     SPI     -40 to 125     WQFN | 16     5.00 | 1ku     40     16WQFN: 9 mm2: 3 x 3 (WQFN | 16)     SAR     Pseudo-Differential     Simultaneous Sampling     Ext     Small Size     5.5     0     4.5     5.5     1.65     5.5     1.5     81.5     -90     Catalog    
ADS7250 Order now 12     750     2     SPI     -40 to 125     WQFN | 16     3.00 | 1ku     40     16WQFN: 9 mm2: 3 x 3 (WQFN | 16)     SAR     Pseudo-Differential     Simultaneous Sampling     Ext     Small Size     5.5     0     4.5     5.5     1.65     5.5     1     73     -90     Catalog    
ADS8350 Order now 16     750     2     SPI     -40 to 125     WQFN | 16     8.00 | 1ku     40     16WQFN: 9 mm2: 3 x 3 (WQFN | 16)     SAR     Pseudo-Differential     Simultaneous Sampling     Ext     Small Size     5.5     0     4.5     5.5     1.65     5.5     2.5     85     -96     Catalog