ADS6142-HT Datasheet, PDF (1/49 Pages) Texas Instruments – 14-BITS, 65 MSPS ADC WITH DDR LVDS/CMOS OUTPUTS

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ADS6142-HT
SLWS234 – DECEMBER 2011
14-BITS, 65 MSPS ADC WITH DDR LVDS/CMOS OUTPUTS
Check for Samples: ADS6142-HT
FEATURES
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• Maximum Sample Rate: 65 MSPS
• 14-Bit Resolution with No Missing Codes
• 3.5 dB Coarse Gain and up to 6 dB
Programmable Fine Gain for SNR/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
mV_PP
• Clock Duty Cycle Stabilizer
• Internal Reference with Support for External
Reference
• No External Decoupling Required 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
APPLICATIONS
• Down-Hole Drilling
• High Temperature Environment
• Wireless Communications Infrastructure
• Software Defined Radio
• Power Amplifier Linearization
• 802.16d/e
• Test and Measurement Instrumentation
• High Definition Video
• Medical Imaging
• Radar Systems
SUPPORTS EXTREME TEMPERATURE
APPLICATIONS
• Controlled Baseline
• One Assembly/Test Site
• One Fabrication Site
• Available in Extreme (–40°C/210°C)
Temperature Range⁽¹⁾
• Extended Product Life Cycle
• Extended Product-Change Notification
• Product Traceability
• Texas Instruments high temperature products
utilize highly optimized silicon (die) solutions
with design and process enhancements to
maximize performance over extended
temperatures. All devices are characterized
and qualified for 1000 hours of continuous
operating life at maximum rated temperature.
(1) Custom temperature ranges available
DESCRIPTION
The ADS6142 is a high performance and low power consumption 14-bit A/D converter with a sampling frequency
of 65 MSPS. An internal high bandwidth sample and hold and a low jitter clock buffer help to achieve high SNR
and high SFDR even at high input frequencies.
The ADS6142 features coarse and fine gain options to improve SFDR performance at lower full-scale analog
input ranges.
The digital data outputs are either parallel CMOS or DDR (Double Data Rate) LVDS. Several features exist to
ease data capture such as — controls for output clock position and output buffer drive strength, LVDS current,
and internal termination programmability.
The output interface type, gain, and other functions are programmed using a 3-wire serial interface. Alternatively,
some functions are configured using dedicated parallel pins so the device powers up to the desired state.
The ADS6142 includes internal references while eliminating traditional reference pins and associated external
decoupling. External reference mode is also supported.
The ADS6142 is specified over the extreme temperature range (–40°C to 210°C).
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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2011, Texas Instruments Incorporated