ADS7891IPFBR

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ADS7891IPFBR

2.7V-5.25V Digital, 5V Analog, 14-Bit 3MSPS Parallel ADC With Internal Reference

Packaging

Package | PIN: PFB | 48
Temp: I (-40 to 85)
Carrier: Cut Tape
Qty Price
1-9 $21.41
10-24 $19.90
25-99 $19.21
100-249 $16.78
250-499 $15.97
500-749 $14.70
750-999 $13.19
1000+ $13.15

Features

  • 3 MHz Sample Rate, 14-Bit Resolution
  • Zero Latency
  • Unipolar, Pseudo Differential Input, Range:
    • 0 V to 2.5 V
  • High Speed Parallel Interface
  • 78 dB SNR and 88.5 dB THD at 3 MSPS
  • Power Dissipation 85 mW at 3 MSPS
  • Nap Mode (10 mW Power Dissipation)
  • Power Down (10 µW)
  • Internal Reference
  • Internal Reference Buffer
  • 8-/14-Bit Bus Transfer
  • 48-Pin TQFP Package
  • APPLICATIONS
    • Optical Networking (DWDM, MEMS Based Switching)
    • Spectrum Analyzers
    • High Speed Data Acquisition Systems
    • High Speed Close-Loop Systems
    • Telecommunication
    • Ultra-Sound Detection

Texas Instruments  ADS7891IPFBR

The ADS7891 is a 14-bit 3-MSPS A-to-D converter with 2.5-V internal reference. The device includes a capacitor based SAR A/D converter with inherent sample and hold. The device offers a 14-bit parallel interface with an additional byte mode that provides easy interface with 8-bit processors. The device has a pseudo-differential input stage.

The –IN swing of ±200 mV is useful to compensate for ground voltage mismatch between the ADC and sensor and also to cancel common-mode noise. With nap mode enabled, the device operates at lower power when used at lower conversion rates. The device is available in a 48-pin TQFP package.