ADS9120
- Sample Rate: 2.5MSPS
- No Latency Output
- Excellent DC and AC Performance:
- INL: ±0.25LSB
- DNL: ±0.6LSB
- SNR: 96dB, THD: –118dB
- Wide Input Range:
- Unipolar Differential Input Range: ±VREF
- VREF Input Range: 2.5V to 5V, Independent of AVDD
- Low-Power Dissipation:
- 9mW at 2.5MSPS (AVDD Only)
- 15.5mW at 2.5MSPS (Total)
- Flexible Low-Power Modes Enable Power Scaling with Throughput
- Enhanced-SPI ( multiSPI™) Digital Interface
- JESD8-7A-Compliant Digital I/O at 1.8V DVDD
- Fully-Specified Over Extended Temperature Range: –40°C to +125°C
- Small Footprint: 4mm × 4mm VQFN
The ADS9120 is a 16-bit, 2.5MSPS, successive approximation register (SAR) analog-to-digital converter (ADC) with enhanced performance features. The high throughput enables developers to oversample the input signal to improve dynamic range and accuracy of the measurement. The ADS9110 is a pin-compatible, 18-bit, 2MSPS variant of the ADS9120.
The ADS9120 boosts analog performance while maintaining high-resolution data transfer by using TI’s enhanced SPI feature. Enhanced SPI enables the ADS9120 to achieve high throughput at lower clock speeds, thereby simplifying board layout and lowering system cost.
Enhanced SPI also simplifies the host clocking-in of data, thereby making the device ideal for applications involving FPGAs and DSPs. The ADS9120 is compatible with a standard SPI Interface. The ADS9120 has an internal data parity feature that can be appended to the ADC data output. ADC data validation by the host, using parity bits, improves system reliability.
The device supports JESD8-7A compliant I/Os, the extended industrial temperature range, and is offered in a space-saving, 4mm × 4mm, VQFN package.
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 | ADS9120 16-Bit, 2.5MSPS, 15.5mW, SAR ADC With Enhanced Performance Features datasheet (Rev. B) | PDF | HTML | 2026/4/6 | ||
| 應用說明 | Attenuator Amplifier Design to Maximize the Input Voltage of Differential ADCs | 2018/6/14 | ||||
| Application brief | Improving Input Settling for Precision Data Converters | 2017/12/12 | ||||
| Application brief | Optimizing Data Transfer on High-Resolution, High-Throughput Data Converters | 2017/12/12 | ||||
| Application brief | Simplify Isolation Designs Using an Enhanced-SPI ADC Interface | 2017/12/11 | ||||
| 白皮書 | Enabling Faster, Smarter, and More Robust Solutions for SAR ADSx With multiSPI | 2016/11/8 | ||||
| 白皮書 | Voltage-reference impact on total harmonic distortion | 2016/8/1 |
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)。
ADS9120EVM-PDK — ADS9120 16 位元 2.5 MSPS、15.5mW SAR ADC EVM 性能展示套件 (PDK)
ADS9120 評估模組 (EVM) 性能展示套件 (PDK) 是用於評估 ADS9120 連續近似暫存器類比轉數位轉換器 (SAR ADC) 效能的平台。ADS9120EVM-PDK 包含 ADS9120 EVM 板、PHI 控制器電路板，以及隨附的電腦軟體，可讓使用者透過通用序列匯流排 (USB) 與 ADC 通訊、擷取資料，以及執行資料分析。
SBAC154 — ADS9120EVM-PDK GUI
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。
ADC-DAC-TO-VREF-SELECT-DESIGN-TOOL — The ADC-TO-VREF-SELECT tool enables the pairing of TI ADCs, DACs, and series voltage references.
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VQFN (RGE) | 24 | 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。