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ADS4145IRGZT bảng dữ liệu(PDF) 1 Page - Texas Instruments |
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ADS4145IRGZT bảng dữ liệu(HTML) 1 Page - Texas Instruments |
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1 / 74 page  12-bit ADC Reference Sampling Circuit CLK Gen ADS4122 LVDS VCM INP INM CLKP CLKM D0_D1P D0_D1M D10_D11P D10_D11M CLKOUTP CLKOUTM Product Folder Sample & Buy Technical Documents Tools & Software Support & Community An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. ADS4122, ADS4125, ADS4142, ADS4145 SBAS520B – FEBRUARY 2011 – REVISED JANUARY 2016 ADS41xx 14-/12-Bit, 65-/125-MSPS, Ultra Low-Power ADC 1 1 Features 1 • Ultralow Power with 1.8-V Single Supply: – 103-mW Total Power at 65MSPS – 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 • 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 2 Applications • Wireless Communications Infrastructure • Software-Defined Radio • Power Amplifier Linearization 3 Description The ADS412x and ADS414x 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/4x 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/4x are available in a compact VQFN- 48 package and are specified over the industrial temperature range (–40°C to +85°C). Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) ADS4122 VQFN (48) 7.00 mm x 7.00 mm ADS4125 ADS4142 ADS4145 (1) For all available packages, see the orderable addendum at the end of the datasheet. ADS4122 Block Diagram |
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