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ADS4245IRGCR bảng dữ liệu(PDF) 1 Page - Texas Instruments |
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ADS4245IRGCR bảng dữ liệu(HTML) 1 Page - Texas Instruments |
1 / 97 page ADS4222, ADS4225, ADS4226 ADS4242, ADS4245, ADS4246 www.ti.com SBAS533 – MARCH 2011 Dual-Channel, 12-/14-Bit, 65/125/160MSPS Ultralow-Power ADC Check for Samples: ADS4222, ADS4225, ADS4226, ADS4242, ADS4245, ADS4246 1 FEATURES APPLICATIONS • Wireless Communications Infrastructure 23 • Ultralow Power with Single 1.8V Supply, CMOS Output: • Software Defined Radio – 211mW total power at 65MSPS • Power Amplifier Linearization – 326mW total power at 125MSPS DESCRIPTION – 391mW total power at 160MSPS The ADS422x/424x are low-speed variants of the • High Dynamic Performance: ADS42xx ultralow-power family of dual-channel, – 82dBc SFDR at 170MHz 12-bit/14-bit analog-to-digital converters (ADCs). – 71.2dBFS SNR at 170MHz Innovative design techniques are used to achieve high-dynamic performance, while consuming • Crosstalk: > 90dB at 185MHz extremely low power with 1.8V supply. This topology • Programmable Gain up to 6dB for makes the ADS422x/424x well-suited for multi-carrier, SNR/SFDR Trade-off wide-bandwidth communications applications. • DC Offset Correction The ADS422x/424x have gain options that can be • Output Interface Options: used to improve SFDR performance at lower – 1.8V parallel CMOS interface full-scale input ranges. These devices include a dc offset correction loop that can be used to cancel the – Double data rate (DDR) LVDS with ADC offset. Both DDR (double data rate) LVDS and programmable swing: parallel CMOS digital output interfaces are available – Standard swing: 350mV in a compact QFN-64 PowerPAD ™ package. – Low swing: 200mV The devices include internal references while the • Supports Low Input Clock Amplitude traditional reference pins and associated decoupling Down to 200mVPP capacitors have been eliminated. All devices are specified over the industrial temperature range • Package: QFN-64 (9mm × 9mm) ( –40°C to +85°C). ADS424x/2x Family Comparison(1) 65MSPS 125MSPS 160MSPS 250MSPS ADS422x ADS4222 ADS4225 ADS4226 ADS4229 12-bit family ADS424x ADS4242 ADS4245 ADS4246 ADS4249 14-bit family (1) See for details on migrating from the ADS62P49 family. 1 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. 2 PowerPAD is a trademark of Texas Instruments Incorporated. 3 All other trademarks are the property of their respective owners. PRODUCT PREVIEW information concerns products in the Copyright © 2011, Texas Instruments Incorporated formative or design phase of development. Characteristic data and other specifications are design goals. Texas Instruments reserves the right to change or discontinue these products without notice. |
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