text.skipToContent text.skipToNavigation

ADS7881IRGZT

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

Packaging

Package | PIN: RGZ | 48
Temp: I (-40 to 85)
Carrier: Cut Tape
Qty Price
1-9 $13.76
10-24 $12.80
25-99 $12.35
100-249 $10.79
250-499 $10.27
500-749 $9.45
750-999 $8.48
1000+ $8.45

Features

  • 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

Texas Instruments  ADS7881IRGZT

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.