Texas Instruments ADC32J4x 14-Bit Analog-to-Digital Converters

Texas Instruments ADC32J4x 14-Bit Analog-to-Digital Converters (ADCs) are high-linearity, ultra-low power, dual-channel, and 50MSPS to 160MSPS ADC family. These ADC32J4x devices are designed specifically to support demanding, high input frequency signals with large dynamic range requirements. A clock input divider allows more flexibility for system clock architecture design. The ADC32J4x devices from Texas Instruments support JESD204B interfaces in order to reduce the number of interface lines. This also allows for high system integration density. The JESD204B interface is a serial interface, where the data of each ADC are serialized and output over only one differential pair. An internal Phase-Locked Loop (PLL) multiplies the incoming ADC sampling clock by 20 to derive the bit clock that is used to serialize the 14-bit data from each channel. The devices support subclass 1 with interface speeds up to 3.2Gbps.

Features

  • Dual channel
  • 14-bit resolution
  • 1.8V single supply voltage
  • Flexible input clock buffer with divide-by-1, 2, and 4
  • SNR = 72.2dBFS, SFDR = 87dBc @ fIN = 70MHz
  • Ultralow power consumption:
    • 227mw/ch @ 160MSPS
  • Channel isolation: 105dB
  • Internal dither
  • JESD204B serial interface:
    • Subclass 0, 1, and 2 compliant up to 3.2Gbps
    • Supports one lane per ADC up to 160MSPS
  • Support for multichip synchronization
  • Pin-to-pin compatible with the 12-bit version (ADC32J2x)
  • VQFN-48 (7mm x 7mm) package

Applications

  • Multi-carrier, multi-mode cellular base stations
  • Radar and smart antenna arrays
  • Munitions guidance
  • Motor control feedback
  • Network and vector analyzers
  • Communications test equipment
  • Nondestructive testing
  • Microwave receivers
  • Software Defined Radios (SDRS)
  • Quadrature and diversity radio receivers

ADC32J4x Block Diagram

Block Diagram - Texas Instruments ADC32J4x 14-Bit Analog-to-Digital Converters

TI Reference Designs Tool

TI Reference Designs - Texas Instruments ADC32J4x 14-Bit Analog-to-Digital Converters
Publicado: 2015-09-14 | Actualizado: 2025-06-25