ADC34J42 Quad-Channel, 14-Bit, 50-MSPS Analog-to-Digital Converter (ADC) | TI.com

ADC34J42 (ACTIVE)

Quad-Channel, 14-Bit, 50-MSPS Analog-to-Digital Converter (ADC)

 

Description

The ADC34J4x is a high-linearity, ultra-low power, quad-channel, 14-bit, 50-MSPS to 160-MSPS, analog-to-digital converter (ADC). The 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 while the SYSREF input enables complete system synchronization. The ADC34J4x family supports serial current-mode logic (CML) and JESD204B interfaces in order to reduce the number of interface lines, thus allowing 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 ADC34J4x devices support subclass 1 with interface speeds up to 3.2 Gbps.

Features

  • Quad Channel
  • 14-Bit Resolution
  • Single 1.8-V Supply
  • Flexible Input Clock Buffer with Divide-by-1, -2, -4
  • SNR = 72 dBFS, SFDR = 86 dBc at
    fIN = 70 MHz
  • Ultra-Low Power Consumption:
    • 203 mW/Ch at 160 MSPS
  • Channel Isolation: 105 dB
  • Internal Dither
  • JESD204B Serial Interface:
    • Supports Subclass 0, 1, 2
    • Supports One Lane per ADC up to 160 MSPS
  • Support for Multi-Chip Synchronization
  • Pin-to-Pin Compatible with 12-Bit Version
  • Package: VQFN-48 (7 mm × 7 mm)

Parametrics

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Part number Order Sample rate (Max) (MSPS) Features Resolution (Bits) Number of input channels SNR (dB) ENOB (Bits) SFDR (dB) Power consumption (Typ) (mW) Input range (Vp-p) Interface Operating temperature range (C) Analog input BW (MHz) Input buffer Package Group Package size: mm2:W x L (PKG) Rating Architecture
ADC34J42 Order now 50     Low Power     14     4     73.2     11.9     100     491     2     JESD204B     -40 to 85     450     No     VQFN | 48     48VQFN: 49 mm2: 7 x 7 (VQFN | 48)     Catalog     Pipeline    
ADC34J22 Order now 50     Low Power     12     4     70.7     11.5     100     491     2     JESD204B     -40 to 85     450     No     VQFN | 48     48VQFN: 49 mm2: 7 x 7 (VQFN | 48)     Catalog     Pipeline    
ADC34J23 Order now 80     Low Power     12     4     70.6     11.4     95     584     2     JESD204B     -40 to 85     450     No     VQFN | 48     48VQFN: 49 mm2: 7 x 7 (VQFN | 48)     Catalog     Pipeline    
ADC34J24 Order now 125     Low Power     12     4     70.9     11.5     90     715     2     JESD204B     -40 to 85     450     No     VQFN | 48     48VQFN: 49 mm2: 7 x 7 (VQFN | 48)     Catalog     Pipeline    
ADC34J25 Order now 160     Low Power     12     4     70.6     11.4     89     812     2     JESD204B     -40 to 85     450     No     VQFN | 48     48VQFN: 49 mm2: 7 x 7 (VQFN | 48)     Catalog