ADS7882 - 2.7V-5.25V Digital, 5V Analog, 12 Bit, 3MSPS, Parallel ADC with Ref

The ADS7882 is a 12-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 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 48-pin TQFP package.

• 3-MHz Sample Rate, 12-Bit Resolution
• Zero Latency
• Unipolar, Pseudo Differential Input, Range:
  • 0 V to 2.5 V
• High-Speed Parallel Interface
• 69.5 dB SNR at 100 kHz I/P
• Power Dissipation 85 mW at 3 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