ADS1259
- 24 Bits, No Missing Codes
- Output Data Rates From 10 To 14kSPS
- High Performance:
- INL: 0.4ppm
- Reference Drift: 2ppm/°C
- Gain Drift: 0.5ppm/°C
- Offset Drift: 0.05µV/°C
- Noise: 0.7µVRMS at 60SPS
- Simultaneous 50/60Hz Rejection at 10SPS
- Single-Cycle Settling
- Internal Oscillator
- Out-of-Range Detection
- Readback Data Integrity by Checksum and Redundant Data Read Capability
- SPI-Compatible Interface
- Analog Supply: +5V or ±2.5V
- Digital Supply: +2.7V to +5V
- Low Power: 13mW
- APPLICATIONS
- Industrial Process Control
- Scientific Instrumentation
- Test and Measurement
All other trademarks are the property of their respective owners
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.
技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 下载最新的英语版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 数据表 | Industrial, 14kSPS, 24-Bit Analog-to-Digital Converter with Low-Drift Reference 数据表 (Rev. D) | 2011-8-26 | |||
| 应用手册 | 计算 Δ-Σ ADC 的转换延迟和系统周期时间 (Rev. A) | PDF | HTML | 英语版 (Rev.A) | PDF | HTML | 2024-3-27 | |
| 应用手册 | 电桥测量基本指南 (Rev. A) | PDF | HTML | 英语版 (Rev.A) | PDF | HTML | 2024-3-8 | |
| 应用手册 | Δ-Σ ADC 中的数字滤波器类型 (Rev. A) | PDF | HTML | 英语版 (Rev.A) | PDF | HTML | 2023-4-13 | |
| 应用手册 | 使用 Delta-Sigma 数据转换器的数据完整性通信方法 (Rev. A) | PDF | HTML | 英语版 (Rev.A) | PDF | HTML | 2021-9-13 | |
| 电子书 | Fundamentals of Precision ADC Noise Analysis (Rev. A) | 2020-6-19 | ||||
| 模拟设计期刊 | Enabling precision delta‐sigma ADCs in functional safety applications | 2020-3-19 | ||||
| 电子书 | Best of Baker's Best: Precision Data Converters -- Delta-Sigma ADCs | 2015-3-19 |
设计与开发
如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。
ADS1259EVM-PDK — ADS1259 性能演示套件
ADS1259EVM-PDK 是一款完整的评估/演示套件，可将 ADS1259EVM 与基于 DSP 的 MMB0 主板组合在一起。主板和 ADCPro™ 评估软件可通过可用的 USB 端口与个人计算机搭配使用。这些电路板组合可用于评估 ADS1259 和 PGA280。
ANALOG-ENGINEER-CALC — PC software analog engineer's calculator
模拟工程师计算器旨在加快模拟电路设计工程师经常运用的许多重复性计算。该基于 PC 的工具提供图形界面，其中显示各种常见计算列表，从使用反馈电阻器设置运算放大器增益到选择合适的电路设计元件，以稳定模数转换器 (ADC) 驱动器缓冲器电路。
除了可用作独立工具之外，该计算器还能很好地与模拟工程师口袋参考中所述的概念配合使用。
ADC-DAC-TO-VREF-SELECT-DESIGN-TOOL — The ADC-TO-VREF-SELECT tool enables the pairing of TI ADCs, DACs, and series voltage references.
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| TSSOP (PW) | 20 | Ultra Librarian |
订购和质量
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