ADS54J40 Dual-Channel, 14-Bit, 1.0-GSPS Analog-to-Digital Converter (ADC) | TI.com

ADS54J40
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Dual-Channel, 14-Bit, 1.0-GSPS Analog-to-Digital Converter (ADC)

 

Description

The ADS54J40 is a low-power, wide-bandwidth, 14-bit, 1.0-GSPS, dual-channel, analog-to-digital converter (ADC). Designed for high signal-to-noise ratio (SNR), the device delivers a noise floor of –158 dBFS/Hz for applications aiming for highest dynamic range over a wide instantaneous bandwidth. The device supports the JESD204B serial interface with data rates up to 10.0 Gbps, supporting two or four lanes per ADC. The buffered analog input provides uniform input impedance across a wide frequency range and minimizes sample-and-hold glitch energy. Each ADC channel optionally can be connected to a wideband digital down-converter (DDC) block. The ADS54J40 provides excellent spurious-free dynamic range (SFDR) over a large input frequency range with very low power consumption.

The JESD204B interface reduces the number of interface lines, allowing high system integration density. An internal phase-locked loop (PLL) multiplies the ADC sampling clock to derive the bit clock that is used to serialize the 14-bit data from each channel.

Features

  • 14-Bit Resolution, Dual-Chanel, 1-GSPS ADC
  • Noise Floor: –158 dBFS/Hz
  • Spectral Performance (fIN = 170 MHz at –1 dBFS):
    • SNR: 69.0 dBFS
    • NSD: –155.9 dBFS/Hz
    • SFDR: 86 dBc
    • SFDR: 89 dBc (Except HD2, HD3, and Interleaving Tones)
  • Spectral Performance (fIN = 350 MHz at –1 dBFS):
    • SNR: 66.3 dBFS
    • NSD: –153.3 dBFS/Hz
    • SFDR: 75 dBc
    • SFDR: 85 dBc (Except HD2, HD3, and Interleaving Tones)
  • Channel Isolation: 100 dBc at fIN = 170 MHz
  • Input Full-Scale: 1.9 VPP
  • Input Bandwidth (3 dB): 1.2 GHz
  • On-Chip Dither
  • Integrated Wideband DDC Block
  • JESD204B Interface with Subclass 1 Support:
    • 2 Lanes per ADC at 10.0 Gbps
    • 4 Lanes per ADC at 5.0 Gbps
    • Support for Multi-Chip Synchronization
  • Power Dissipation: 1.35 W/ch at 1 GSPS
  • VQFNP-72 Package (10 mm × 10 mm)

Parametrics

Compare all products in High-speed ADCs (>10MSPS) Email Download to Excel
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
ADS54J40 Order now 1000     Ultra High Speed     14     2     69.7     11.3     89     2700     1.9     JESD204B     -40 to 85     1200     Yes     VQFN | 72     72VQFN: 100 mm2: 10 x 10 (VQFN | 72)     Catalog     Pipeline    
ADS54J20 Samples not available 1000     Ultra High Speed     12     2     68.4     11.1     89     2700     1.9     JESD204B     -40 to 85     1200     Yes     VQFN | 72     72VQFN: 100 mm2: 10 x 10 (VQFN | 72)     Catalog     Pipeline    
ADS54J42 Samples not available 625     High Performance     14     2     71.8     11.6     93     1940     1.9     JESD204B     -40 to 85     1200     Yes     VQFN | 72     72VQFN: 100 mm2: 10 x 10 (VQFN | 72)     Catalog     Pipeline    
ADS54J60 Samples not available 1000     Ultra High Speed     16     2     70.9     11.5     90     2700     1.9     JESD204B     -40 to 85     1200     Yes     VQFN | 72     72VQFN: 100 mm2: 10 x 10 (VQFN | 72)     Catalog     Pipeline    
ADS54J64 Samples not available 1000
500    
High Performance     14     4     69     11.6     86     2500     1.1     JESD204B     -40 to 85     1000     Yes     VQFN | 72     72VQFN: 100 mm2: 10 x 10 (VQFN | 72)     Catalog     Pipeline