Automotive quad-channel 12-bit 25-MSPS analog-to-digital converter (ADC)


Product details


Number of input channels 4 Interface type Serial LVDS Analog input BW (MHz) 540 Features High Dynamic Range, High Performance, Low Power Rating Automotive Architecture Pipeline Operating temperature range (C) -40 to 125 Input buffer Yes open-in-new Find other High-speed ADCs (>10MSPS)

Package | Pins | Size

VQFNP (RWE) 56 64 mm² 8 x 8 open-in-new Find other High-speed ADCs (>10MSPS)


  • AEC-Q100 Qualified for automotive applications
    • Temperature grade 1: –40°C to 125°C TA
  • Quad channel
  • 12-Bit resolution
  • Single supply: 1.8 V
  • Serial LVDS interface
  • Flexible input clock buffer with divide-by-1, -2, -4
  • SNR = 71.1 dBFS, SFDR = 90 dBc at
    fIN = 10 MHz
  • Ultra-low power consumption:
    • 44 mW/Ch at 25 MSPS
  • Channel isolation: 105 dB
  • Internal dither and chopper
  • Support for multichip synchronization

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


The ADC3421-Q1 is an automotive-grade, high-linearity, ultra-low power, quad-channel, 12-bit, 25-MSPS analog-to-digital converter (ADC). The device is designed specifically to support demanding, high input frequency signals with large dynamic range requirements. An input clock divider gives more flexibility for system clock architecture design, and the SYSREF input enables complete system synchronization. The ADC3421-Q1 supports serial low-voltage differential signaling (LVDS) in order to reduce the number of interface lines, thus allowing for high system integration density. The serial LVDS interface is two-wire, where each ADC data are serialized and output over two LVDS pairs. An internal phase-locked loop (PLL) multiplies the incoming ADC sampling clock to derive the bit clock that is used to serialize the 12-bit output data from each channel. In addition to the serial data streams, the frame and bit clocks are also transmitted as LVDS outputs.

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

Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 6
Type Title Date
* Datasheet ADC3421-Q1 Automotive, Quad-Channel, 12-Bit, 25-MSPS Analog-to-Digital Converter datasheet (Rev. A) Mar. 25, 2020
Technical articles How to achieve fast frequency hopping Mar. 03, 2019
User guides ADC3xxxEVM and ADC3xJxxEVM User's Guide (Rev. D) Aug. 24, 2018
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

Design & development

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

Hardware development

document-generic User guide

The ADC3421 EVM demonstrates the performance of a low power quad 25Msps 12 bit ADC.  It includes the ADC3421 device and TI voltage regulators to provide the necessary voltages.  The input for the ADC is by default connected to the transformer input which can be connected to a 50 ohm single (...)

  • Single 1.8V supply simplify power requirements
  • Serial LVDS interface simplify digital interface and layout requirements
  • On chip Dither to improve SFDR
  • On chip Chopper to improve 1/f noise
  • Input clock buffer with 1/2/4 divider to simplify clocking
  • Pin compatibility between 12 and 14 bit versions
  • Supports (...)
document-generic User guide

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 (...)

  • 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 (...)
  • Design tools & simulation

    SLAM226.ZIP (3 KB) - TINA-TI Spice Model
    SLAM227.TSC (1083 KB) - TINA-TI Reference Design
    SLAM228.ZIP (15 KB) - PSpice Model
    SLAM232.ZIP (36 KB) - IBIS Model
    PSpice® for TI design and simulation tool
    PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
    • Leverages Cadence PSpice Technology
    • Preinstalled library with a suite of digital models to enable worst-case timing analysis
    • Dynamic updates ensure you have access to most current device models
    • Optimized for simulation speed without loss of accuracy
    • Supports simultaneous analysis of multiple products
    • (...)

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