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The ADS1259 is a high-linearity, low-drift, 24-bit, analog-to-digital converter (ADC) designed for the needs of industrial process control, precision instrumentation, and other exacting applications. Combined with a signal amplifier (such as the PGA280), a high-resolution, high-accuracy measurement system is formed that is capable of digitizing a wide range of signals.
The converter uses a fourth-order, inherently stable, delta-sigma (ΔΣ) modulator that provides outstanding noise and linearity performance. The data rates are programmable up to 14kSPS including 10SPS, 50SPS, and 60SPS that provide excellent normal mode line-cycle rejection. The digital filter can be programmed for a fast settling mode where the conversions settle in a single cycle, or programmed for a high line-cycle rejection mode. A fast responding input over-range detector flags the conversion data if an input over-range should occur.
The ADS1259 also provides an integrated low-noise, very low drift 2.5V reference. The on-chip oscillator, an external crystal, or an external clock can by used as the ADC clock source.
Data and control communication are handled over a 4MHz, SPI-compatible interface capable of operating with a minimum of three wires. Data integrity is augmented by data bytes checksum and redundant data read capability. Conversions are synchronized either by command or by pin.
Dissipating only 13mW in operation, the ADS1259 can be powered down, dissipating less than 25µW. The ADS1259 is offered in a TSSOP-20 package and is fully specified from –40°C to +105°C.
| 重要文件 | 類型 | 標題 | 格式選項 | 日期 |
|---|---|---|---|---|
| * | Data sheet | Industrial, 14kSPS, 24-Bit Analog-to-Digital Converter with Low-Drift Reference datasheet (Rev. D) | 2011年 8月 26日 | |
| Application note | Calculating Conversion Latency and System Cycle Time for Delta-Sigma ADCs (Rev. A) | PDF | HTML | 2024年 3月 18日 | |
| Application note | A Basic Guide to Bridge Measurements (Rev. A) | PDF | HTML | 2024年 3月 13日 | |
| Application note | Digital Filter Types in Delta-Sigma ADCs (Rev. A) | PDF | HTML | 2023年 3月 29日 | |
| Application note | Communication Methods for Data Integrity Using Delta-Sigma Data Converters (Rev. A) | PDF | HTML | 2021年 8月 23日 | |
| E-book | Fundamentals of Precision ADC Noise Analysis (Rev. A) | 2020年 6月 19日 | ||
| Analog Design Journal | Enabling precision delta‐sigma ADCs in functional safety applications | 2020年 3月 19日 | ||
| E-book | Best of Baker's Best: Precision Data Converters -- Delta-Sigma ADCs | 2015年 3月 19日 |
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)。
ADS1259EVM-PDK 為一套完整的評估/示範套件，結合 ADS1259EVM 與以 DSP 為基礎的 MMB0 主機板。主機板和 ADCPro™ 評估軟體可藉由提供的 USB 埠與個人電腦配合使用。電路板組合可評估 ADS1259 和 PGA280。
The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| TSSOP (PW) | 20 | Ultra Librarian |
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。
Analog Engineer's Calc Installer
General calculator tool for analog design support.
This is the first release of this tool.