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Home » NEWEST Products » New by Manufacturer » Texas Instruments » TI ADS4122 / ADS4145 Ultralow-Power ADCs
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Texas Instruments ADS4122 / ADS4145 Ultralow-Power ADCs

TI ADS4122 / ADS4142 / ADS4145
Ultralow-Power ADCs

Texas Instruments ADS4122, ADS4142, and ADS4145 Ultralow-Power Analog-to-Digital Converters (ADCs) are lower sampling speed variants of the ADS41xx family of ADCs. TI ADS4122 ADCs are 65MSPS 12-bit devices while ADS4142 ADCs are 65MSPS 14-bit devices. The ADS4145 is a 125MSPS 14-bit ADC. These TI ultralow-power data converters use innovative design techniques to achieve high dynamic performance, while consuming extremely low power at 1.8V supply. ADS4122, ADS4142, and ADS4145 ADCs are ideal for use in multi-carrier, wide bandwidth communications applications.

Features
  • Ultralow Power with 1.8V Single Supply:
    • 103mW Total Power at 65MSPS
    • 153mW Total Power at 125MSPS
  • High Dynamic Performance:
    • SNR: 72.2dBFS at 170MHz
    • SFDR: 81dBc at 170MHz
  • Dynamic Power Scaling with Sample Rate
  • Output Interface:
    • Double Data Rate (DDR) LVDS with Programmable Swing and Strength
      • Standard Swing: 350mV
      • Low Swing: 200mV
      • Default Strength: 100Ω Termination
      • 2× Strength: 50Ω Termination
    • 1.8V Parallel CMOS Interface Also Supported
  • Programmable Gain up to 6dB for SNR/SFDR Trade-Off
  • DC Offset Correction
  • Supports Low Input Clock Amplitude Down To 200mVPP
  • Package: QFN-48 (7mm × 7mm)
Applications
  • Multi-Carrier, Wide Bandwidth Communications

Part Numbers Resolution (Bits) Sample Rate (max) SNR (dB) SFDR (dB) Power Consumption (Typ) (mW)
ADS4122IRGZT 12 65MSPS 70.9 88 95
ADS4142IRGZT 14 65MSPS 72.3 88 95
ADS4145IRGZ25 14 125MSPS 72.2 88 136

Functional Diagram

Functional Diagram
  • Texas Instruments
  • Semiconductors|Integrated Circuits|IC-Data Conversion