ADS7881 - 2.7V-5.25V Digital, 5V Analog, 12 Bit, 4MSPS, Parallel ADC with Ref

The ADS7881 is a 12-bit 4-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 12-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.

Products containing the "ADS7881" keyword are: ADS7881EVM , ADS7881IPFBR , ADS7881IPFBR , ADS7881IPFBRG4 , ADS7881IPFBT , ADS7881IPFBT , ADS7881IPFBTG4 , ADS7881IRGZR , ADS7881IRGZR , ADS7881IRGZRG4 , ADS7881IRGZRG4.. , ADS7881IRGZT , ADS7881IRGZT , ADS7881IRGZTG4

• 4 MHz Sample Rate, 12-Bit Resolution
• Zero Latency
• Unipolar, Pseudo Differential Input, Range:
  • 0 V to 2.5 V
• High Speed Parallel Interface
• 71 dB SNR and –88.5 dB THD at 1 MHz I/P
• Power Dissipation 95 mW at 4 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
  • Ultra-Sound Detection