ADS1118
- Ultrasmall X2QFN Package:
2 mm × 1.5 mm × 0.4 mm - Wide Supply Range: 2 V to 5.5 V
- Low Current Consumption:
- Continuous Mode: Only 150 µA
- Single-Shot Mode: Automatic Power Down
- Programmable Data Rate:
8 SPS to 860 SPS - Single-Cycle Settling
- Internal Low-Drift Voltage Reference
- Internal Temperature Sensor:
0.5°C (Maximum) Error: 0°C to 70°C - Internal Oscillator
- Internal PGA
- Four Single-Ended or Two Differential Inputs
The ADS1118 is a precision, low power, 16-bit analog-to-digital converter (ADC) that provides all features necessary to measure the most common sensor signals in an ultra-small, leadless X2QFN-10 package or a VSSOP-10 package. The ADS1118 integrates a programmable gain amplifier (PGA), voltage reference, oscillator and high-accuracy temperature sensor. These features, along with a wide power supply range from 2 V to 5.5 V, make the ADS1118 ideally suited for power- and space-constrained, sensor-measurement applications.
The ADS1118 can perform conversions at data rates up to 860 samples per second (SPS). The PGA offers input ranges from ±256 mV to ±6.144 V, allowing both large and small signals to be measured with high resolution. An input multiplexer (MUX) allows to measure two differential or four single-ended inputs. The high-accuracy temperature sensor can be used for system-level temperature monitoring or cold-junction compensation for thermocouples.
The ADS1118 operates either in continuous-conversion mode, or in a single-shot mode that automatically powers down after a conversion. Single-shot mode significantly reduces current consumption during idle periods. Data are transferred through a serial peripheral interface (SPI™). The ADS1118 is specified from –40°C to +125°C.
技術文件
設計與開發
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ADS1118EVM — ADS1118 16 位元、860-SPS、4 通道、Delta-Sigma ADC 評估模組
The ADS1118 evaluation module (EVM) is a complete solution for evaluation of the ADS1118 ultra-small, low-power, precision 16-bit analog-to-digital converter (ADC). Power and I/O are provided via USB connection and a simple software interface. Analog inputs can be connected to a terminal block (...)
SBAC121 — 430BOOST-ADS1118 Firmware
ADS1118-C-EXAMPLE-CODE — ADS1118 example C code
SBAC117 — ADS1118EVM Source Code
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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。
TIPD109 — 精度 <1°C 的簡易熱電偶量測解決方案參考設計
This thermocouple measurement verified design provides a very simple and accurate method way to implement thermocouple measurement. This design outlines the necessary anti-aliasing filters and biasing resistors to provide sensor diagnostics. This example also provides a novel way of accomplishing (...)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| X2QFN (RUG) | 10 | Ultra Librarian |
| VSSOP (DGS) | 10 | Ultra Librarian |
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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。