ADS4245

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Dual-Channel, 14-Bit, 125-MSPS Analog-to-Digital Converter (ADC)

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Product details

Parameters

Sample rate (Max) (MSPS) 125 Resolution (Bits) 14 Number of input channels 2 Analog input BW (MHz) 600 Features Low Power Rating Catalog Input range (Vp-p) 2 Power consumption (Typ) (mW) 277 Architecture Pipeline SNR (dB) 73.6 ENOB (Bits) 11.5 SFDR (dB) 91 Operating temperature range (C) -40 to 85 Input buffer No 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

  • Ultralow Power With Single 1.8-V Supply, CMOS
    Output:
    • 183 mW Total Power at 65 MSPS
    • 277 mW Total Power at 125 MSPS
    • 332 mW Total Power at 160 MSPS
  • High Dynamic Performance:
    • 88-dBc SFDR at 170 MHz
    • 71.4-dBFS SNR at 170 MHz
  • Crosstalk: > 90 dB at 185 MHz
  • Programmable Gain up to 6 dB for SNR/SFDR
    Trade-off
  • DC Offset Correction
  • Output Interface Options:
    • 1.8-V parallel CMOS Interface
    • Double Data Rate (DDR) LVDS With
      Programmable swing:
      • Standard Swing: 350 mV
      • Low Swing: 200 mV
  • Supports Low Input Clock Amplitude Down to
    200 mVPP
  • Package: VQFN-64 (9.00 mm × 9.00 mm)
open-in-new Find other High-speed ADCs (>10MSPS)

Description

The ADS424x and ADS422x family of devices are low-speed variants of the ADS42xx ultralow-power family of dual-channel, 14-bit/12-bit analog-to-digital converters (ADCs). Innovative design techniques are used to achieve high-dynamic performance, while consuming extremely low power with 1.8-V supply. This topology makes the ADS424x/422x well-suited for multi-carrier, wide-bandwidth communications applications.

The ADS424x/422x have gain options that can be used to improve SFDR performance at lower full-scale input ranges. These devices include a dc offset correction loop that can be used to cancel the ADC offset. Both DDR (double data rate) LVDS and parallel CMOS digital output interfaces are available in a compact VQFN-64 package.

The devices include internal references while the traditional reference pins and associated decoupling capacitors have been eliminated. All devices are specified over the industrial temperature range (–40°C to 85°C).

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

= Featured
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Type Title Date
* Datasheet ADS42xx Dual-Channel, 14-/12-Bit, 160/125/65 MSPS Ultralow-Power ADC datasheet (Rev. D) Oct. 27, 2015
Technical articles How to achieve fast frequency hopping Mar. 03, 2019
Technical articles RF sampling: Learning more about latency Feb. 09, 2017
Technical articles Why phase noise matters in RF sampling converters Nov. 28, 2016
Technical articles How to minimize filter loss when you drive an ADC Oct. 20, 2016
Application notes Design Considerations for Avoiding Timing Errors during High-Speed ADC, LVDS Dat (Rev. A) May 22, 2015
Application notes Why Use Oversampling when Undersampling Can Do the Job? (Rev. A) Jul. 19, 2013
User guides ADS42xx EVM User’s Guide (Rev. A) Jun. 21, 2013
User guides Interfacing Altera FPGAs to ADS4249 and DAC3482 (TIDA-00069 Reference Guide) Jul. 10, 2012
Application notes High-Speed, Analog-to-Digital Converter Basics Jan. 11, 2012
More literature TI and Altera Ease Design Process with Compatible Evaluation Tools Apr. 25, 2011
More literature TI and Xilinx Ease Design Process with Compatible Evaluation Tools Apr. 25, 2011
Application notes Driving High-Speed ADCs: Circuit Topologies and System-Level Parameters (Rev. A) Sep. 10, 2010
Application notes Smart Selection of ADC/DAC Enables Better Design of Software-Defined Radio Apr. 28, 2009
Application notes CDCE62005 as Clock Solution for High-Speed ADCs Sep. 04, 2008
Application notes CDCE72010 as a Clocking Solution for High-Speed Analog-to-Digital Converters Jun. 08, 2008
Application notes Phase Noise Performance and Jitter Cleaning Ability of CDCE72010 Jun. 02, 2008
Application notes QFN Layout Guidelines Jul. 28, 2006

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 ADS4245EVM is a circuit board that allows designers to evaluate the performance of Texas Instruments‘ ADS4245 device, an extremely low power dual channel 14-bit 125 MSPS analog to digital converter. The ADC features a configurable parallel DDR LVDS or CMOS outputs. The EVM provides a (...)

Features
  • Transformer coupled analog input path
  • Amplifier path based on the THS4509
  • Configurable CMOS or DDR LVDS parallel output modes
  • Transformer coupled clock input path
  • CDCE72010 Jitter Clock Synchronizer and Jitter Cleaner clocking circuit
  • DDR LVDS output and capture ability via TSW1400EVM or TSW1405EVM (...)
  • EVALUATION BOARDS Download
    document-generic User guide
    Description

    The DAC3152EVM is a circuit board that allows designers to evaluate the performance of Texas Instruments' dual-channel 10-bit 500 MSPS DAC3152 digital-to-analog converter (DAC) with 10-byte wide DDR LVDS data input, very low power, size and latency. The EVM provides a flexible environment to test (...)

    Features
  • Comprehensive test capability for the DAC3152 for IF and RF outputs
  • Direct connection to TSW3100 pattern generator
  • Includes CDCP1803 for clock generation
  • Includes TRF370333 for complete transmitter evaluation
  • Easy setup: software control not required
  • Adapter connector compatible to Xilinx FPGA EVMs with (...)
  • EVALUATION BOARDS Download
    document-generic User guide
    Description

    The DAC3162EVM is a circuit board that allows designers to evaluate the performance of Texas Instruments' dual-channel 12-bit 500 MSPS DAC3162 digital-to-analog converter (DAC) with 12-byte wide DDR LVDS data input, very low power, size and latency. The EVM provides a flexible environment to test (...)

    Features
  • Comprehensive test capability for the DAC3162 for IF and RF outputs
  • Direct connection to TSW3100 pattern generator
  • Includes CDCP1803 for clock generation
  • Includes TRF370333 for complete transmitter evaluation
  • Easy setup: software control not required
  • Adapter connector compatible to Xilinx FPGA EVMs with (...)
  • EVALUATION BOARDS Download
    document-generic User guide
    $99.00
    Description

    The TSW1405EVM is a low cost data capture circuit board used to evaluate some of Texas Instruments’ (TI) most popular high speed analog-to-digital converters (ADC).

     

    The TSW1405EVM supports a high speed LVDS bus capable of providing 16-bit samples at 1.0 GSPS. The platform supports a 64k sample depth (...)

    Features
  • Simple 16-bit waveform capture from many of TI’s high speed ADC EVM’s
  • Supports 64k sample depth at up to 1.0 GSPS LVDS I/O rates
  • LatticeECP3 high speed mini FPGA
  • Analyzes up to 8 channels concurrently
  • Single mini USB cable for power and data
  • Utilizes an intuitive/easy-to-use GUI package
  • Industry’s (...)
  • EVALUATION BOARDS Download
    document-generic User guide
    $399.00
    Description

    The TSW3085 Evalutaion Module is a circuit board that allows system designers to evaluate the combined performance of Texas Instruments' transmit signal chain with the LMK04806B (formally National Semiconductor) low noise clock generator/jitter cleaner. For ease of use as a complete RF transmit (...)

    Features
  • Includes LMK04806B for clock generation and jitter cleaning
  • Direct connection to TSW3100 signal generator
  • Comprehensive test capability for the transmitter (DAC3482 dual DAC and TRF3705 IQ Modulator) at analog baseband, IF and RF outputs
  • Software support with a full featured GUI for easy testing and (...)
  • GUIS FOR EVALUATION MODULES (EVM) Download
    SBAC113B.ZIP (129504 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
    SBAM094B.ZIP (40 KB) - IBIS Model
    DESIGN TOOLS Download
    SBAC119B.ZIP (3547 KB)
    SCHEMATICS Download
    SLAC459B.ZIP (6548 KB)

    CAD/CAE symbols

    Package Pins Download
    VQFN (RGC) 64 View options

    Ordering & quality

    Support & training

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