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ADS8318

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16 位、单极差分输入、500kSPS 串行输出、4.5V 至 5.5V 微功耗采样 ADC

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ADS8318

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产品详情

Resolution (Bits) 16 Sample rate (max) (ksps) 500 Number of input channels 1 Interface type SPI Architecture SAR Input type Differential Rating Catalog Reference mode External Input voltage range (max) (V) 5.5 Input voltage range (min) (V) 0 Features Daisy-Chainable, Small Size Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 18 Analog supply voltage (min) (V) 4.5 Analog supply voltage (max) (V) 5.5 SNR (dB) 96 Digital supply (min) (V) 2.375 Digital supply (max) (V) 5.5
Resolution (Bits) 16 Sample rate (max) (ksps) 500 Number of input channels 1 Interface type SPI Architecture SAR Input type Differential Rating Catalog Reference mode External Input voltage range (max) (V) 5.5 Input voltage range (min) (V) 0 Features Daisy-Chainable, Small Size Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 18 Analog supply voltage (min) (V) 4.5 Analog supply voltage (max) (V) 5.5 SNR (dB) 96 Digital supply (min) (V) 2.375 Digital supply (max) (V) 5.5
VSON (DRC) 10 9 mm² (3 mm × 3 mm) VSSOP (DGS) 10 14.7 mm² (3 mm × 4.9 mm)
  • 500-kHz Sample Rate
  • 16-Bit Resolution
  • Zero Latency at Full Speed
  • Unipolar, Differential Input, Range: –Vref to Vref
  • SPI Compatible Serial Interface with Daisy Chain Option
  • Excellent Performance:
    • 95.2dB SNR Typ at 10-kHz I/P
    • –108dB THD Typ at 10-kHz I/P
    • ±1.0 LSB Max INL
    • ±0.75 LSB Max DNL
  • Low Power Dissipation: 18 mW Typ at 500 KSPS
  • Power Scales Linearly with Speed: 3.6 mW/100 KSPS
  • Power Dissipation During Power-Down State: 0.25 µW Typ
  • 10-Pin MSOP and SON Packages
  • APPLICATIONS
    • Battery Powered Equipments
    • Data Acquisition Systems
    • Instrumentation and Process Control
    • Medical Electronics
    • Optical Networking
  • 500-kHz Sample Rate
  • 16-Bit Resolution
  • Zero Latency at Full Speed
  • Unipolar, Differential Input, Range: –Vref to Vref
  • SPI Compatible Serial Interface with Daisy Chain Option
  • Excellent Performance:
    • 95.2dB SNR Typ at 10-kHz I/P
    • –108dB THD Typ at 10-kHz I/P
    • ±1.0 LSB Max INL
    • ±0.75 LSB Max DNL
  • Low Power Dissipation: 18 mW Typ at 500 KSPS
  • Power Scales Linearly with Speed: 3.6 mW/100 KSPS
  • Power Dissipation During Power-Down State: 0.25 µW Typ
  • 10-Pin MSOP and SON Packages
  • APPLICATIONS
    • Battery Powered Equipments
    • Data Acquisition Systems
    • Instrumentation and Process Control
    • Medical Electronics
    • Optical Networking

The ADS8318 is a 16-bit, 500-KSPS analog-to-digital converter. It operates with a 2.048-V to 5.5-V external reference. The device includes a capacitor based, SAR A/D converter with inherent sample and hold.

The devices includes a 50-MHz SPI compatible serial interface. The interface is designed to support daisy chaining or cascading of multiple devices. Also a Busy Indicator makes it easy to synchronize with the digital host.

The ADS8318 unipolar differential input range supports a differential input swing of –Vref to +Vref with a common-mode of +Vref/2.

Device operation is optimized for very low power operation, and the power consumption directly scales with speed. This feature makes it attractive for lower speed applications.

It is available in 10-pin MSOP and SON packages.

The ADS8318 is a 16-bit, 500-KSPS analog-to-digital converter. It operates with a 2.048-V to 5.5-V external reference. The device includes a capacitor based, SAR A/D converter with inherent sample and hold.

The devices includes a 50-MHz SPI compatible serial interface. The interface is designed to support daisy chaining or cascading of multiple devices. Also a Busy Indicator makes it easy to synchronize with the digital host.

The ADS8318 unipolar differential input range supports a differential input swing of –Vref to +Vref with a common-mode of +Vref/2.

Device operation is optimized for very low power operation, and the power consumption directly scales with speed. This feature makes it attractive for lower speed applications.

It is available in 10-pin MSOP and SON packages.
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技术文档

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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 16-Bit, 500-KSPS, Serial Interface microPOWER, Miniature SAR ADC* 数据表 (Rev. A) 2011-3-23
电路设计 用于保护低压 SAR ADC 免受电过应力且对性能影响超低的电 路 (Rev. A) PDF | HTML 英语版 (Rev.A) PDF | HTML 2024-10-3
白皮书 Voltage-reference impact on total harmonic distortion 2016-8-1
电子书 Best of Baker's Best: Precision Data Converters -- SAR ADCs 2015-5-21
应用手册 ADC Parameters Unit Conversion 2013-3-5
应用手册 Determining Minimum Acquisition Times for SAR ADCs, part 2 2011-3-17
应用手册 Determining Minimum Acquisition Times for SAR ADCs, part 1 (Rev. A) 2010-11-10
应用手册 Low Power Input and Reference Driver Circuit for ADS8318 and ADS8319 2009-6-24

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）。

仿真模型

ADS8318 IBIS Model

SBAM086.ZIP (28 KB) - IBIS 模型
支持的产品和硬件
仿真模型

ADS8318 TINA-TI Spice Model

SLAM208.ZIP (54 KB) - TINA-TI Spice 模型
支持的产品和硬件
仿真模型

ADS8318 TINA-TI Transient Reference Design

SLAM209.TSC (2645 KB) - TINA-TI 参考设计
支持的产品和硬件
计算工具

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。

支持的产品和硬件
计算工具

JITTER-SNR-CALC — Jitter and SNR calculator

JITTER-SNR-CALC 可用于根据输入频率和时钟抖动来计算 ADC 的理论信噪比 (SNR) 性能。

支持的产品和硬件
设计工具

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.
支持的产品和硬件
封装 引脚 CAD 符号、封装和 3D 模型
VSON (DRC) 10 Ultra Librarian
VSSOP (DGS) 10 Ultra Librarian
适用于评估类项目的 TI 标准条款与条件。

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