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德州仪器的14 位250MSPS 低功耗 ADC 集成电路ADS4149IRGZT
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14 位 250MSPS 低功耗 ADC 集成电路ADS4149IRGZT
12-/14-Bit, 160/250MSPS, Ultralow-Power ADC

集成电路ADS4149IRGZT的说明
The ADS412x/4x are a family of 12-bit/14-bit analog-to-digital converters (ADCs) with sampling rates up to 250MSPS. These devices use innovative design techniques to achieve high dynamic performance, while consuming extremely low power at 1.8V 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 QFN-48 package and are specified over the industrial temperature range (–40°C to +85°C)

集成电路ADS4149IRGZT的特性
Maximum Sample Rate: 250MSPS
Ultralow Power with 1.8V Single Supply:
201mW Total Power at 160MSPS
265mW Total Power at 250MSPS
High Dynamic Performance:
SNR: 70.6dBFS at 170MHz
SFDR: 84dBc at 170MHz
Dynamic Power Scaling with Sample Rate
Output Interface:
Double Data Rate (DDR) LVDS with Programmable Swing and Strength
Standard Swing: 350mV
Low Swing: 200mV
Default Strength: 100Ω Termination
2x Strength: 50Ω Termination
1.8V Parallel CMOS Interface Also Supported
Programmable Gain up to 6dB for SNR/SFDR Trade-Off
DC Offset Correction
Supports Low Input Clock Amplitude Down To 200mVPP
Package: QFN-48 (7mm × 7mm)

ADS4149IRGZ 系列通常用于电信方面的多载波、大带宽通讯应用
德州仪器的14 位250MSPS 低功耗 ADC 集成电路ADS4149IRGZT
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