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ADS8481

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18 位 1MSPS 并行 ADC，具有基准电压

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数据表

ADS8481

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数据表 立即订购

产品详情

Resolution (Bits) 18 Sample rate (max) (ksps) 1000 Number of input channels 1 Interface type Byte-Wide, Parallel Architecture SAR Input type Pseudo-Differential, Single-ended Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 4.1 Input voltage range (min) (V) 0 Features Oscillator Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 220 Analog supply voltage (min) (V) 4.75 Analog supply voltage (max) (V) 5.25 SNR (dB) 94 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.25
Resolution (Bits) 18 Sample rate (max) (ksps) 1000 Number of input channels 1 Interface type Byte-Wide, Parallel Architecture SAR Input type Pseudo-Differential, Single-ended Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 4.1 Input voltage range (min) (V) 0 Features Oscillator Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 220 Analog supply voltage (min) (V) 4.75 Analog supply voltage (max) (V) 5.25 SNR (dB) 94 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.25
VQFN (RGZ) 48 49 mm² (7 mm × 7 mm)
  • 0 to 1 MSPS Sampling Rate
  • 18-Bit NMC Ensured Over Temperature
  • Low ±0.1 mV Offset Error
  • Low 0.2 ppm/°C Offset Error Temperature Drift
  • Low 0.6 ppm/°C Gain Error Temperature Drift
  • Zero Latency
  • Low Power: 220 mW at 1 MSPS
  • Unipolar Single-Ended Input Range: 0 V to Vref
  • Onboard Reference
  • Onboard Reference Buffer
  • High-Speed Parallel Interface
  • Wide Digital Supply 2.7 V ~ 5.25 V
  • 8-/16-/18-Bit Bus Transfer
  • 7x7 QFN Package
  • APPLICATIONS
    • Medical Instruments
    • Optical Networking
    • Transducer Interface
    • High Accuracy Data Acquisition Systems
    • Magnetometers
  • 0 to 1 MSPS Sampling Rate
  • 18-Bit NMC Ensured Over Temperature
  • Low ±0.1 mV Offset Error
  • Low 0.2 ppm/°C Offset Error Temperature Drift
  • Low 0.6 ppm/°C Gain Error Temperature Drift
  • Zero Latency
  • Low Power: 220 mW at 1 MSPS
  • Unipolar Single-Ended Input Range: 0 V to Vref
  • Onboard Reference
  • Onboard Reference Buffer
  • High-Speed Parallel Interface
  • Wide Digital Supply 2.7 V ~ 5.25 V
  • 8-/16-/18-Bit Bus Transfer
  • 7x7 QFN Package
  • APPLICATIONS
    • Medical Instruments
    • Optical Networking
    • Transducer Interface
    • High Accuracy Data Acquisition Systems
    • Magnetometers

The ADS8481 is an 18-bit, 1-MSPS A/D converter with an internal 4.096-V reference and a pseudo-differential unipolar single-ended input. The device includes a 18-bit capacitor-based SAR A/D converter with inherent sample and hold. The ADS8481 offers a full 18-bit interface, a 16-bit option where data is read using two read cycles, or an 8-bit bus option using three read cycles.

The ADS8481 is available in a 7x7 QFN package and is characterized over the industrial -40°C to 85°C temperature range.

The ADS8481 is an 18-bit, 1-MSPS A/D converter with an internal 4.096-V reference and a pseudo-differential unipolar single-ended input. The device includes a 18-bit capacitor-based SAR A/D converter with inherent sample and hold. The ADS8481 offers a full 18-bit interface, a 16-bit option where data is read using two read cycles, or an 8-bit bus option using three read cycles.

The ADS8481 is available in a 7x7 QFN package and is characterized over the industrial -40°C to 85°C temperature range.
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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 18-Bit 1-MSPS Pseudo-Diff Unipolar Input Micro Samp ADC w/Parallell Interface 数据表 (Rev. A) 2006-3-27
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 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

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

ADS8481 IBIS Model

SLAM068.ZIP (53 KB) - IBIS 模型
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
VQFN (RGZ) 48 Ultra Librarian
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