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Texas Instruments ADC354x Low-Noise Ultra-Low Power ADCs

Texas Instruments ADC354x Low-Noise Ultra-Low Power Analog-to-Digital Converters (ADCs) are low-noise, ultra-low power, 14-bit, 10 to 65MSPS, high-speed ADCs. These devices are designed for low power consumption and deliver a –155dBFS/Hz noise spectral density. The ADC354x offers great DC precision and IF sampling support, making these devices an excellent choice for a wide range of applications. High-speed control loops benefit from the short latency of only one clock cycle. The ADC consumes only 79mW at 65MSPS, and the power consumption scales very well with lower sampling rates.

The Texas Instruments ADC354x uses an SDR, DDR, or a serial CMOS interface to output the data offering the lowest power digital interface and the flexibility to minimize the number of digital interconnects. These devices are pin-to-pin compatible family with different speed grades. These devices support the extended industrial temperature range of –40°C to +105°C.

Features

  • 14-bit 10/25/65MSPS ADC
  • –155dBFS/Hz noise floor 
  • Ultra-low power with optimized power scaling (35mW (10MSPS) to 84mW (65MSPS))
  • 1 clock cycle latency 
  • INL: ±0.6LSB; DNL: ±0.1LSB
  • Reference can be external or internal
  • 900MHz (3dB) input bandwidth 
  • –40°C to +105°C industrial temperature range
  • On-chip digital filter (optional)
    • Decimation by 2, 4, 8, 16, 32
    • 32-bit NCO
  • SDR/DDR and Serial CMOS interface
  • 40-WQFN (5mm × 5mm) package small footprint
  • Single 1.8V supply
  • Spectral Performance (fIN = 10MHz)
    • SNR: 79.0dBFS
    • SFDR: 87dBc HD2, HD3
    • SFDR: 99dBFS Worst Spur
  • Spectral Performance (fIN = 64MHz)
    • SNR: 78.0dBFS
    • SFDR: 70dBc HD2, HD3
    • SFDR: 91dBFS Worst Spur

Applications

  • High-speed data acquisition
  • Industrial monitoring
  • Thermal imaging
  • Imaging and sonar
  • Software-defined radio
  • Power quality analysis
  • Communications infrastructure
  • High-speed control loops
  • Instrumentation
  • Smart grids
  • Spectroscopy
  • Radar

Functional Block Diagram

Block Diagram - Texas Instruments ADC354x Low-Noise Ultra-Low Power ADCs

Texas Instruments ADC354x Low-Noise Ultra-Low Power ADCs