ADS7890IPFBT

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ADS7890IPFBT

2.7V-5.25V Digital, 5V Analog, 14-Bit 1.25MSPS Serial ADC With Internal Reference

Packaging

Package | PIN: PFB | 48
Temp: I (-40 to 85)
Carrier: Cut Tape
Qty Price
1-9 $18.72
10-24 $17.41
25-99 $16.80
100-249 $14.67
250-499 $13.97
500-749 $12.85
750-999 $11.54
1000+ $11.50

Features

  • 1.25 MHz Sample Rate, 14-Bit Resolution
  • Zero Latency
  • Unipolar, Pseudo Differential Input, Range:
    • 0 V to 2.5 V
  • SPI™ Compatible Serial Interface
  • 77.5 dB SNR and –95 dB THD at 0.5 MHz I/P
  • Power Dissipation 45 mW at 1.25 MSPS
  • Nap Mode (10 mW Power Dissipation)
  • Power Down (10 µW)
  • Internal Reference
  • Internal Reference Buffer
  • 48-Pin TQFP Package
  • APPLICATIONS
    • Optical Networking (DWDM, MEMS Based Switching)
    • Spectrum Analyzers
    • High Speed Data Acquisition Systems
    • High Speed Close-Loop Systems
    • Telecommunication

SPI is a trademark of Motorola, Inc.

Texas Instruments  ADS7890IPFBT

The ADS7890 is a 14-bit 1.25-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 serial SPI or DSP compatible interface. 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. The device operates at lower power when used at lower conversion rates because of the nap feature. The device is available in a 48-pin TQFP package.