ADS4122
- Ultra-Low Power With 1.8-V Single Supply:
- 103-mW Total Power at 65 MSPS
- 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
- Idle Channel SNR 74.8 dBFS (ADS414x)
- 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
- Double Data Rate (DDR) LVDS With Programmable Swing and
Strength:
- Programmable Gain up to 6 dB for SNR, SFDR Trade-Off
- DC Offset Correction
- Supports Low Input Clock Amplitude Down to 200 mVPP
The ADS412x and ADS414x devices 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 and ADS414x devices 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 and ADS414x devices are available in a compact VQFN-48 package and are specified over the industrial temperature range (–40°C to +85°C).
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | ADS41xx 14-, 12-Bit, 65-, 125-MSPS, Ultra-Low-Power ADC datasheet (Rev. C) | PDF | HTML | 2017/6/8 | ||
| * | 使用指南 | Interfacing Altera FPGAs to ADS4249 and DAC3482 (TIDA-00069 Reference Guide) | 2012/7/10 | |||
| 應用說明 | Design Considerations for Avoiding Timing Errors during High-Speed ADC, LVDS Dat (Rev. A) | 2015/5/22 | ||||
| 應用說明 | Why Use Oversampling when Undersampling Can Do the Job? (Rev. A) | 2013/7/19 | ||||
| 應用說明 | Band-Pass Filter Design Techniques for High-Speed ADCs | 2012/2/27 | ||||
| 應用說明 | Driving High-Speed ADCs: Circuit Topologies and System-Level Parameters (Rev. A) | 2010/9/10 | ||||
| 應用說明 | Smart Selection of ADC/DAC Enables Better Design of Software-Defined Radio | 2009/4/28 | ||||
| 應用說明 | CDCE62005 as Clock Solution for High-Speed ADCs | 2008/9/4 | ||||
| 應用說明 | CDCE72010 as a Clocking Solution for High-Speed Analog-to-Digital Converters | 2008/6/8 | ||||
| 應用說明 | Phase Noise Performance and Jitter Cleaning Ability of CDCE72010 | 2008/6/2 | ||||
| 應用說明 | QFN Layout Guidelines | 2006/7/28 |
設計與開發
如需其他條款或必要資源,請按一下下方的任何標題以檢視詳細頁面 (如有)。
ADS4122EVM — ADS4122 12 位元、65-MSPS 類比轉數位轉換器評估模組
The ADS4122EVM is a circuit board that allows designers to evaluate the performance of Texas Instruments‘ ADS4122 device, an extremely low power 12-bit 65 MSPS analog to digital converter. The ADC features a configurable parallel DDR LVDS or CMOS outputs. The EVM provides a flexible (...)
DATACONVERTERPRO-SW — 高速資料轉換器 Pro GUI 安裝程式,v5.31
這款高速資料轉換器專業 GUI 是一款 PC(與 Windows® XP/7/10 相容)程式,旨在協助評估大多數 TI 高速資料轉換器 [類比轉數位轉換器 (ADC) 和數位轉類比轉換器 (DAC)] 和類比前端 (AFE) 平台。DATACONVERTERPRO-SW 旨在支援整個 TSW14xxx 系列資料擷取和模式產生卡,為時域和頻域中的資料轉換器分析提供強大且快速的解決方案,並支援單音、多音和調變訊號。此 GUI 也與 TI 模式產生 GUI 相容,可快速合成單音、多音和調變訊號。
使用者可以向 DATACONVERTERPRO-SW 提供自訂模式,以載入到 TI DAC。支援從 (...)
SLAC384 — ADS41xx SPI GUI rev1.6
ANALOG-ENGINEER-CALC — PC software analog engineer's calculator
類比工程師的計算機旨在加速類比電路設計工程師定期使用的許多重複計算。此基於 PC 的工具提供圖形介面,列出各種常見計算,從使用回饋電阻器設定運算放大器增益到選擇適當的電路設計元件以穩定類比數位轉換器 (ADC) 驅動緩衝電路。
除了作為獨立工具使用外,此計算機還與類比工程師口袋參考中描述的概念相得益彰。
SBAC119 — TIGAR (Texas Instruments Graphical Evaluation of ADC Response Tool)
TIDA-00942 — 適用於數位器的 12 位元 20 MSPS 資料採集參考設計
此參考設計可實現符合成本效益且低功耗的資料擷取系統,可為 FPGA 架構系統提供替代方案。其具有單端高阻抗輸入,可用於各種應用,包括可攜式儀器和數位器。
此參考設計運用 ADS4122 類比轉數位轉換器 (ADC),以及 OPA656 和 THS4541 運算放大器 (op amps),開發適用 BeagleBone Cape 外型尺寸的 12 位元 20-MSPS 數位器。此參考設計中開發的擴充板與 BeagleBone Black 開發平台介接,該平台是一款以 ARM Cortex-A8 處理器為基礎的低成本、開放原始碼、社群支援的環境。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VQFN (RGZ) | 48 | Ultra Librarian |
訂購與品質
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。