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High-speed ADCs (≥10 MSPS)

ADS4122

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12-Bit, 65-MSPS Analog-to-Digital Converter (ADC)

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ADS4122

ACTIVE
Data sheet Order now

Product details

Sample rate (max) (Msps) 65 Resolution (Bits) 12 Number of input channels 1 Interface type DDR LVDS, Parallel CMOS Analog input BW (MHz) 800 Features Low Power Rating Catalog Peak-to-peak input voltage range (V) 2 Power consumption (typ) (mW) 95 Architecture Pipeline SNR (dB) 71.1 ENOB (Bits) 11.2 SFDR (dB) 87 Operating temperature range (°C) -40 to 85 Input buffer No
Sample rate (max) (Msps) 65 Resolution (Bits) 12 Number of input channels 1 Interface type DDR LVDS, Parallel CMOS Analog input BW (MHz) 800 Features Low Power Rating Catalog Peak-to-peak input voltage range (V) 2 Power consumption (typ) (mW) 95 Architecture Pipeline SNR (dB) 71.1 ENOB (Bits) 11.2 SFDR (dB) 87 Operating temperature range (°C) -40 to 85 Input buffer No
VQFN (RGZ) 48 49 mm² (7 mm × 7 mm)
  • Ultra-Low Power With 1.8-V Single Supply:
    • 103-mW Total Power at 65 MSPS
    • 153-mW Total Power at 125 MSPS
  • High Dynamic Performance:
    • SNR: 72.2 dBFS at 170 MHz
    • SFDR: 81 dBc at 170 MHz
  • Dynamic Power Scaling With Sample Rate
  • Idle Channel SNR 74.8 dBFS (ADS414x)
  • Output Interface:
    • Double Data Rate (DDR) LVDS With Programmable Swing and Strength:
      • Standard Swing: 350 mV
      • Low Swing: 200 mV
      • Default Strength: 100-Ω Termination
      • 2x Strength: 50-Ω Termination
    • 1.8-V Parallel CMOS Interface Also Supported
  • Programmable Gain up to 6 dB for SNR, SFDR Trade-Off
  • DC Offset Correction
  • Supports Low Input Clock Amplitude Down to 200 mVPP
  • Ultra-Low Power With 1.8-V Single Supply:
    • 103-mW Total Power at 65 MSPS
    • 153-mW Total Power at 125 MSPS
  • High Dynamic Performance:
    • SNR: 72.2 dBFS at 170 MHz
    • SFDR: 81 dBc at 170 MHz
  • Dynamic Power Scaling With Sample Rate
  • Idle Channel SNR 74.8 dBFS (ADS414x)
  • Output Interface:
    • Double Data Rate (DDR) LVDS With Programmable Swing and Strength:
      • Standard Swing: 350 mV
      • Low Swing: 200 mV
      • Default Strength: 100-Ω Termination
      • 2x Strength: 50-Ω Termination
    • 1.8-V Parallel CMOS Interface Also Supported
  • Programmable Gain up to 6 dB for SNR, SFDR Trade-Off
  • DC Offset Correction
  • Supports Low Input Clock Amplitude Down to 200 mVPP

The ADS412x and ADS414x devices are lower-sampling speed variants in the ADS41xx family of analog-to-digital converters (ADCs). These devices use innovative design techniques to achieve high dynamic performance, while consuming extremely low power at 1.8-V supply. The devices are well-suited for multi-carrier, wide bandwidth communications applications.

The ADS412x and ADS414x devices have fine gain options that can be used to improve SFDR performance at lower full-scale input ranges, especially at high input frequencies. They include a dc offset correction loop that can be used to cancel the ADC offset. At lower sampling rates, the ADC automatically operates at scaled down power with no loss in performance.

The ADS412x and ADS414x devices are available in a compact VQFN-48 package and are specified over the industrial temperature range (–40°C to +85°C).

The ADS412x and ADS414x devices are lower-sampling speed variants in the ADS41xx family of analog-to-digital converters (ADCs). These devices use innovative design techniques to achieve high dynamic performance, while consuming extremely low power at 1.8-V supply. The devices are well-suited for multi-carrier, wide bandwidth communications applications.

The ADS412x and ADS414x devices have fine gain options that can be used to improve SFDR performance at lower full-scale input ranges, especially at high input frequencies. They include a dc offset correction loop that can be used to cancel the ADC offset. At lower sampling rates, the ADC automatically operates at scaled down power with no loss in performance.

The ADS412x and ADS414x devices are available in a compact VQFN-48 package and are specified over the industrial temperature range (–40°C to +85°C).
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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet ADS41xx 14-, 12-Bit, 65-, 125-MSPS, Ultra-Low-Power ADC datasheet (Rev. C) PDF | HTML Jun 8, 2017
* User guide Interfacing Altera FPGAs to ADS4249 and DAC3482 (TIDA-00069 Reference Guide) Jul 10, 2012
Application note Design Considerations for Avoiding Timing Errors during High-Speed ADC, LVDS Dat (Rev. A) May 22, 2015
Application note Why Use Oversampling when Undersampling Can Do the Job? (Rev. A) Jul 19, 2013
Application note Band-Pass Filter Design Techniques for High-Speed ADCs Feb 27, 2012
Application note Driving High-Speed ADCs: Circuit Topologies and System-Level Parameters (Rev. A) Sep 10, 2010
Application note Smart Selection of ADC/DAC Enables Better Design of Software-Defined Radio Apr 28, 2009
Application note CDCE62005 as Clock Solution for High-Speed ADCs Sep 4, 2008
Application note CDCE72010 as a Clocking Solution for High-Speed Analog-to-Digital Converters Jun 8, 2008
Application note Phase Noise Performance and Jitter Cleaning Ability of CDCE72010 Jun 2, 2008
Application note 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.

Evaluation board

ADS4122EVM — ADS4122 12-Bit, 65-MSPS Analog-to-Digital Converter Evaluation Module

The ADS4122EVM is a circuit board that allows designers to evaluate the performance of Texas Instruments‘ ADS4122 device, an extremely low power 12-bit 65 MSPS analog to digital converter. The ADC features a configurable parallel DDR LVDS or CMOS outputs. The EVM provides a flexible (...)

User guide: PDF | HTML
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GUI for evaluation module (EVM)

DATACONVERTERPRO-SW — High Speed Data Converter Pro GUI Installer, v5.31

This high-speed data converter pro GUI is a PC (Windows® XP/7/10 compatible) program designed to aid in evaluation of most TI high-speed data converter [analog-to-digital converter (ADC) and digital-to-analog converter (DAC)] and analog front-end (AFE) platforms. Designed to support the entire (...)

Supported products & hardware
GUI for evaluation module (EVM)

SLAC384 — ADS41xx SPI GUI rev1.6

Supported products & hardware
Simulation model

ADS414x, ADS412x, ADS58B1x, IBIS MODEL

SBAM091A.ZIP (318 KB) - IBIS model
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Calculation tool

ANALOG-ENGINEER-CALC — PC software analog engineer's calculator

The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)

Supported products & hardware
Design tool

SBAC119 — TIGAR (Texas Instruments Graphical Evaluation of ADC Response Tool)

Supported products & hardware
Reference design

TIDA-00942 — 12-bit, 20-MSPS Data Acquisition Reference Design for Digitizer

This reference design enables a cost-effective and low-power data acquisition system that provides an alternative to FPGA-based systems. It features a single-ended, high-impedance input that can be used in a wide number of applications, including portable instrumentation and digitizers.

The (...)

Supported products & hardware
Package Pins CAD symbols, footprints & 3D models
VQFN (RGZ) 48 Ultra Librarian
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