ADS4149 - 14 位 250MSPS 低功耗 ADC

ADS4149是TI德州仪器公司的一款高速ADC(>10MSPS)产品，ADS4149是14 位 250MSPS 低功耗 ADC，本站介绍了ADS4149的封装应用图解、特点和优点、功能等，并给出了与ADS4149相关的TI元器件型号供参考。

ADS4149 - 14 位 250MSPS 低功耗 ADC - 高速ADC(>10MSPS) - 模数转换器 - 德州仪器

产品描述

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)

产品特性

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)

PowerPAD is a trademark of Texas Instruments Incorporated. All other trademarks are the property of their respective owners.

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