ADS54J64 Quad-Channel, 14-Bit, 1-GSPS, 2x-Oversampling Analog-to-Digital Converter (ADC) | TI.com

ADS54J64 (ACTIVE)

Quad-Channel, 14-Bit, 1-GSPS, 2x-Oversampling Analog-to-Digital Converter (ADC)

 

Description

The ADS54J64 device is a quad-channel, 14-bit,
1-GSPS, analog-to-digital converter (ADC) offering wide-bandwidth, 2x oversampling and high SNR. The ADS54J64 supports a JESD204B serial interface with data rates up to 10 Gbps with one lane per channel. The buffered analog input provides uniform impedance across a wide frequency range and minimizes sample-and-hold glitch energy. The ADS54J64 provides excellent spurious-free dynamic range (SFDR) over a large input frequency range with very low power consumption. The digital signal processing block includes complex mixers followed by low-pass filters with decimate-by-2 and -4 options supporting up to a 200-MHz receive bandwidth. The ADS54J64 also supports a 14-bit, 500-MSPS output in DDC bypass mode.

A four-lane JESD204B interface simplifies connectivity, allowing high system integration density. An internal phase-locked loop (PLL) multiplies the incoming ADC sampling clock to derive the bit clock that is used to serialize the 14-bit data from each channel.

Features

  • Quad Channel, 14-Bit Resolution
  • Maximum Sampling Rate: 1 GSPS
  • Maximum Output Sample Rate: 500 MSPS
  • High-Impedance Analog Input Buffer
  • Analog Input Bandwidth (–3 dB): 1 GHz
  • Output Options:
    • Digital Down Conversion (DDC) Using 16-Bit NCO
    • DDC Bypass With Full Rate Output Up to 500 MSPS
  • Differential Full-Scale Input: 1.1 VPP
  • JESD204B Interface:
    • Subclass 1 Support
    • 1 Lane per ADC Up to 10 Gbps
    • Dedicated SYNC Pin for Pair of Channels
  • Support for Multi-Chip Synchronization
  • Spectral Performance:
    • fIN = 190-MHz IF at –1 dBFS:
      • SNR: 69 dBFS
      • NSD: –153 dBFS/Hz
      • SFDR: 86 dBc (HD2, HD3),
        95 dBFS (Non HD2, HD3)
    • fIN = 370-MHz IF at –3 dBFS:
      • SNR: 68.5 dBFS
      • NSD: –152.5 dBFS/Hz
      • SFDR: 80 dBc (HD2, HD3),
        86 dBFS (Non HD2, HD3)
  • 72-Pin VQFN Package (10 mm × 10 mm)
  • Power Consumption: 625 mW/Ch, 2.5 W Total
  • Power Supplies: 1.15 V, 1.15 V, 1.9 V

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Parametrics Compare all products in High-speed ADCs (>10MSPS)

 
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
Reference mode
ADS54J64 ADS54J20 ADS54J40 ADS54J42 ADS54J60 ADS54J66 ADS54J69
1000
500    
1000     1000     625     1000     500     500    
High Performance     Ultra High Speed     Ultra High Speed     High Performance     Ultra High Speed     High Performance     High Performance    
14     12     14     14     16     14     16    
4     2     2     2     2     4     2    
69     67.8     69     71     70     70.8     73    
11.6     10.9     11.2     11.5     11.6     11.4     12.1    
86     86     86     85     86     89     91    
2500     2700     2700     1940     2700     2700     2700    
1.1     1.9     1.9     1.9     1.9     1.9     1.9    
JESD204B     JESD204B     JESD204B     JESD204B     JESD204B     JESD204B     JESD204B    
-40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85    
1000     1200     1200     1200     1200     900     1200    
Yes     Yes     Yes     Yes     Yes     Yes     Yes    
VQFN | 72     VQFN | 72     VQFN | 72     VQFN | 72     VQFN | 72     VQFN | 72     VQFN | 72    
72VQFN: 100 mm2: 10 x 10 (VQFN | 72)     72VQFN: 100 mm2: 10 x 10 (VQFN | 72)     72VQFN: 100 mm2: 10 x 10 (VQFN | 72)     72VQFN: 100 mm2: 10 x 10 (VQFN | 72)     72VQFN: 100 mm2: 10 x 10 (VQFN | 72)     72VQFN: 100 mm2: 10 x 10 (VQFN | 72)     72VQFN: 100 mm2: 10 x 10 (VQFN | 72)    
Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Catalog    
Pipeline     Pipeline     Pipeline     Pipeline     Pipeline     Pipeline     Pipeline    
Int     Int     Int     Int     Int     Int     Int