ADS42JB49

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Dual-Channel, 14-Bit, 250-MSPS Analog-to-Digital Converter (ADC)

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Product details

Parameters

Sample rate (Max) (MSPS) 250 Resolution (Bits) 14 Number of input channels 2 Analog input BW (MHz) 900 Features High Performance Rating Catalog Input range (Vp-p) 2.5 Power consumption (Typ) (mW) 1700 Architecture Pipeline SNR (dB) 75 ENOB (Bits) 12 SFDR (dB) 95 Operating temperature range (C) -40 to 85 Input buffer Yes open-in-new Find other High-speed ADCs (>10MSPS)

Package | Pins | Size

VQFN (RGC) 64 81 mm² 9 x 9 open-in-new Find other High-speed ADCs (>10MSPS)

Features

  • Dual-Channel ADCs
  • 14- and 16-Bit Resolution
  • Maximum Clock Rate: 250 MSPS
  • JESD204B Serial Interface
    • Subclass 0, 1, 2 Compliant
    • Up to 3.125 Gbps
    • Two and Four Lanes Support
  • Analog Input Buffer with High-Impedance Input
  • Flexible Input Clock Buffer:
    Divide-by-1, -2, and -4
  • Differential Full-Scale Input: 2 VPP and 2.5 VPP
    (Register Programmable)
  • Package: 9-mm × 9-mm VQFN-64
  • Power Dissipation: 850 mW/Ch
  • Aperture Jitter: 85 fS rms
  • Internal Dither
  • Channel Isolation: 100 dB
  • Performance:
    • fIN = 170 MHz at 2 VPP, –1 dBFS
      • SNR: 73.3 dBFS
      • SFDR: 93 dBc for HD2, HD3
      • SFDR: 100 dBc for Non HD2, HD3
    • fIN = 170 MHz at 2.5 VPP, –1 dBFS
      • SNR: 74.7 dBFS
      • SFDR: 89 dBc for HD2, HD3 and
        95 dBc for Non HD2, HD3
open-in-new Find other High-speed ADCs (>10MSPS)

Description

The ADS42JB69 and ADS42JB49 are high-linearity, dual-channel, 16- and 14-bit, 250-MSPS, analog-to-digital converters (ADCs). These devices support the JESD204B serial interface with data rates up to
3.125 Gbps. The buffered analog input provides uniform input impedance across a wide frequency range while minimizing sample-and-hold glitch energy making it easy to drive analog inputs up to very high input frequencies. A sampling clock divider allows more flexibility for system clock architecture design. The devices employ internal dither algorithms to provide excellent spurious-free dynamic range (SFDR) over a large input frequency range.

For all available packages, see the orderable addendum at the end of the datasheet.

open-in-new Find other High-speed ADCs (>10MSPS)
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Technical documentation

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARDS Download
document-generic User guide
Description

The ADS42JB49EVM is an evaluation module (EVM) that allows for the evaluation of Texas Instruments’ ADS42JB49 and LMK04828 clock jitter cleaner. The ADS42JB49 is a low power, 14-bit, 250-MSPS analog to digital converter (ADC) with a buffered analog input and outputs featuring a JESD204B (...)

Features
  • Flexible transformer coupled analog input to allow for a variety of sources and frequencies
  • Easy to use software GUI to configure the ADS42JB49 and LMK04828 for a variety of configurations through a USB interface
  • Quickly evaluate ADC performance through High Speed Data Converter Pro software
  • Simple (...)
GUIS FOR EVALUATION MODULES (EVM) Download
SLAC544D.ZIP (162552 KB)

Software development

SUPPORT SOFTWARE Download
High-speed data converter pro software
DATACONVERTERPRO-SW This high-speed data converter pro GUI is a PC (Windows® XP/7 compatible) program designed to aid in evaluation of most TI high-speed data converter and analog front-end (AFE) platforms. Designed to support the entire TSW14xxx series of data-capture and pattern-generation cards (...)
Features
  • Compatible with TSW1400, TSW1405, TSW1406 and TSW14J10, TSW14J50, TSW14J56, and TSW14J57 pattern-generation and data-capture platforms
  • Works with all TI high-speed DAC, ADC, and AFE products
  • Provides time-domain and frequency-domain analysis
  • Supports single-tone, multi-tone, and modulated (...)
SUPPORT SOFTWARE Download
SBAC120.ZIP (262219 KB)

Design tools & simulation

SIMULATION MODELS Download
SLAM191.ZIP (174 KB) - IBIS Model
DESIGN TOOLS Download
SBAC119B.ZIP (3547 KB)
SCHEMATICS Download
SLRR006.ZIP (9208 KB)

CAD/CAE symbols

Package Pins Download
VQFN (RGC) 64 View options

Ordering & quality

Support & training

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