Texas Instruments ADS788x ADCs

Texas Instruments ADS788x features a family of high-speed, serial interface analog-to-digital converters (ADCs). The TI ADS7887 is a 10-bit, 1.25MSPS ADC, and the ADS7888 is an 8-bit, 1.25MSPS ADC. These TI ADCs operate from 2.35V up to 5.25V and offer the advantages of low-power consumption and compact size.

Features

  • 1.25MHz Sample Rate Serial Device
  • 10-Bit Resolution (ADS7887)
  • 8-Bit Resolution (ADS7888)
  • Zero Latency
  • 25MHz Serial Interface
  • 2.35V to 5.25V Supply Range
  • Typical Power Dissipation at 1.25MSPS
    • 3.8mW at 3V VDD
    • 8mw at 5V VDD
  • ±0.35LSB INL, DNL (ADS7887)
  • ±0.15LSB INL, ±0.1LSB DNL (ADS7888)
  • 61dB SINAD, –84dB THD (ADS7887)
  • 49.5dB SINAD, –67.5dB THD (ADS7888)
  • 0V to VDD Unipolar Input Range
  • 1µA Power-Down Current
  • 15MHz at 3dB Wide Input Bandwidth
  • 6-Pin SOT23 and SC70 Packages

Applications

  • Base Band Converters in Radio Communication
  • Motor Current and Bus Voltage Sensors in Digital Drives
  • Optical Networking (DWDM, MEMS-Based Switching)
  • Optical Sensors
  • Battery-Powered Systems
  • Medical Instrumentations
  • High-Speed Data Acquisition Systems
  • High-Speed Closed-Loop Systems

Functional Block Diagram

Block Diagram - Texas Instruments ADS788x ADCs
Publicado: 2009-12-11 | Actualizado: 2022-03-11