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ADS1259

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适用于工厂自动化且具有低漂移电压基准的 24 位、14.4kSPS、单通道 Δ-Σ ADC

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ADS1259

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产品详情

Resolution (Bits) 24 Sample rate (max) (ksps) 14.4 Number of input channels 1 Interface type SPI Architecture Delta-Sigma Input type Differential, Single-ended Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 2.75, 5.35 Input voltage range (min) (V) -2.7, 0 Features 50/60 Hz Rejection, Oscillator Operating temperature range (°C) -40 to 105 Power consumption (typ) (mW) 13 Analog supply voltage (min) (V) 4.75 Analog supply voltage (max) (V) 5.25 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.25
Resolution (Bits) 24 Sample rate (max) (ksps) 14.4 Number of input channels 1 Interface type SPI Architecture Delta-Sigma Input type Differential, Single-ended Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 2.75, 5.35 Input voltage range (min) (V) -2.7, 0 Features 50/60 Hz Rejection, Oscillator Operating temperature range (°C) -40 to 105 Power consumption (typ) (mW) 13 Analog supply voltage (min) (V) 4.75 Analog supply voltage (max) (V) 5.25 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.25
TSSOP (PW) 20 41.6 mm² 6.5 x 6.4
  • 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
  • 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.

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.
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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年 8月 26日
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年 3月 27日
应用手册 电桥测量基本指南 (Rev. A) PDF | HTML 英语版 (Rev.A) PDF | HTML 2024年 3月 8日
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年 4月 13日
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年 9月 13日
电子书 Fundamentals of Precision ADC Noise Analysis (Rev. A) 2020年 6月 19日
模拟设计期刊 Enabling precision delta‐sigma ADCs in functional safety applications 2020年 3月 19日
电子书 Best of Baker's Best: Precision Data Converters -- Delta-Sigma ADCs 2015年 3月 19日
应用手册 所选封装材料的热学和电学性质 2008年 10月 16日
应用手册 模数规格和性能特性术语表 (Rev. A) 最新英语版本 (Rev.B) 2008年 10月 16日
应用手册 高速数据转换 英语版 2008年 10月 16日

设计与开发

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评估板

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。

 

用户指南: PDF
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仿真模型

ADS1259 IBIS Model

SBAM018.ZIP (112 KB) - IBIS Model
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ANALOG-ENGINEER-CALC — PC software analog engineer's calculator

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 (...)

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ADC-DAC-TO-VREF-SELECT-DESIGN-TOOL — The ADC-TO-VREF-SELECT tool enables the pairing of TI ADCs, DACs, and series voltage references.

The ADC-TO-VREF-SELECT tool enables the pairing of TI analog-to-digital converters (ADCs) and series voltage references. Users can select an ADC device and the desired reference voltage, and the tool will list up to two voltage reference recommendations.
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模拟工具

PSPICE-FOR-TI — PSpice® for TI 设计和仿真工具

PSpice® for TI 可提供帮助评估模拟电路功能的设计和仿真环境。此功能齐全的设计和仿真套件使用 Cadence® 的模拟分析引擎。PSpice for TI 可免费使用，包括业内超大的模型库之一，涵盖我们的模拟和电源产品系列以及精选的模拟行为模型。

借助 PSpice for TI 的设计和仿真环境及其内置的模型库，您可对复杂的混合信号设计进行仿真。创建完整的终端设备设计和原型解决方案，然后再进行布局和制造，可缩短产品上市时间并降低开发成本。 

在 PSpice for TI 设计和仿真工具中，您可以搜索 TI (...)
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TINA-TI — 基于 SPICE 的模拟仿真程序

TINA-TI 提供了 SPICE 所有的传统直流、瞬态和频域分析以及更多。TINA 具有广泛的后处理功能，允许您按照希望的方式设置结果的格式。虚拟仪器允许您选择输入波形、探针电路节点电压和波形。TINA 的原理图捕获非常直观 - 真正的“快速入门”。

TINA-TI 安装需要大约 500MB。直接安装，如果想卸载也很容易。我们相信您肯定会爱不释手。

TINA 是德州仪器 (TI) 专有的 DesignSoft 产品。该免费版本具有完整的功能，但不支持完整版 TINA 所提供的某些其他功能。

如需获取可用 TINA-TI 模型的完整列表，请参阅：SpiceRack - 完整列表 

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用户指南: PDF
英语版 (Rev.A): PDF
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封装 引脚 CAD 符号、封装和 3D 模型
TSSOP (PW) 20 Ultra Librarian
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包含信息：
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  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
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  • 制造厂地点
  • 封装厂地点

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