ADS61B23

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12-Bit, 80-MSPS Analog-to-Digital Converter (ADC)

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Product details

Parameters

Sample rate (Max) (MSPS) 80 Resolution (Bits) 12 Number of input channels 1 Interface type DDR LVDS, Parallel CMOS Analog input BW (MHz) 450 Features Low Power Rating Catalog Input range (Vp-p) 2 Power consumption (Typ) (mW) 351 Architecture Pipeline SNR (dB) 70.2 ENOB (Bits) 11.3 SFDR (dB) 87 Operating temperature range (C) -40 to 85 Input buffer Yes open-in-new Find other High-speed ADCs (>10MSPS)

Package | Pins | Size

VQFN (RHB) 32 25 mm² 5 x 5 open-in-new Find other High-speed ADCs (>10MSPS)

Features

  • Maximum Sample Rate: 80 MSPS
  • 12-bit Resolution with No Missing Codes
  • Buffered Analog Inputs with
    • Very Low Input Capacitance (< 2 pF)
    • High DC Resistance (5 k)
  • 82 dBc SFDR and 70 dBFS SNR
    (-1 BFS or 1.8 Vpp input)
  • 85 dBc SFDR (-6 dBFS or 1 Vpp input)
  • 3.5 dB Coarse Gain and up to 6 dB Programmable Fine Gain for SNR and SFDR Trade-Off
  • Parallel CMOS and Double Data Rate (DDR) LVDS Output Options
  • Supports Sine, LVCMOS, LVPECL, LVDS Clock Inputs and Clock Amplitude Down to 400 mVPP
  • Clock Duty Cycle Stabilizer
  • Internal Reference with Support for External Reference
  • External Decoupling Eliminated for References
  • Programmable Output Clock Position and Drive Strength to Ease Data Capture
  • 3.3 V Analog and 1.8 V to 3.3 V Digital Supply
  • 32-pin QFN Package (5 mm × 5 mm)
  • Pin Compatible 12-Bit Family (ADS612X)
  • Temperature range -40°C to 85°C
  • APPLICATIONS
    • Wireless Communications Infrastructure
    • Software Defined Radio
    • Power Amplifier Linearization
    • 802.16d/e
    • Test and Measurement Instrumentation
    • High Definition Video
    • Medical Imaging
    • Radar Systems

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

Description

ADS61B23 is a 12-bit A/D converter (ADC) with a maximum sampling frequency of 80 MSPS. It combines high performance and low power consumption in a compact 32-QFN package. The analog inputs use buffers to isolate the switching transients of the internal sample & hold from the external driving circuit. The buffered inputs present very low input capacitance (< 2pF) & wide bandwidth. This makes it easy to drive them at high input frequencies, compared to an ADC without the input buffers.

ADS61B23 has coarse and fine gain options that are used to improve SFDR performance at lower full-scale analog input ranges.

The digital data outputs are parallel CMOS or DDR LVDS (Double Data Rate). Several features exist to ease data capture—controls for output clock position and output buffer drive strength, plus LVDS current and internal termination programmability.

The output interface type, gain, and other functions are programmed using a 3-wire serial interface. Alternatively, some of these functions are configured using dedicated parallel pins so the device starts in the desired state after power-up.

ADS61B23 includes internal references, while eliminating the traditional reference pins and associated external decoupling. External reference mode is also supported.

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

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 13
Type Title Date
* Datasheet 12Bits 80MSPS ADC with Buffered Analog Inputs datasheet Feb. 07, 2008
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
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

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Software development

SUPPORT SOFTWARE Download
SBAC120.ZIP (262219 KB)

Design tools & simulation

SIMULATION MODELS Download
SLAC211.ZIP (915 KB) - IBIS Model
SIMULATION TOOLS Download
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 (...)
Features
  • 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
  • (...)
DESIGN TOOLS Download
SBAC119B.ZIP (3547 KB)

CAD/CAE symbols

Package Pins Download
VQFN (RHB) 32 View options

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