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ADS7864

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500kHz、12 位、6 通道同步采样模数转换器

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ADS7864

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产品详情

Resolution (Bits) 12 Sample rate (max) (ksps) 500 Number of input channels 6 Interface type Byte-Wide, Parallel Architecture SAR Input type Differential Multichannel configuration Simultaneous Sampling Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 2.5 Input voltage range (min) (V) 0 Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 50 Analog supply voltage (min) (V) 4.75 Analog supply voltage (max) (V) 5.25 SNR (dB) 71.1 Digital supply (min) (V) 4.75 Digital supply (max) (V) 5.25
Resolution (Bits) 12 Sample rate (max) (ksps) 500 Number of input channels 6 Interface type Byte-Wide, Parallel Architecture SAR Input type Differential Multichannel configuration Simultaneous Sampling Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 2.5 Input voltage range (min) (V) 0 Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 50 Analog supply voltage (min) (V) 4.75 Analog supply voltage (max) (V) 5.25 SNR (dB) 71.1 Digital supply (min) (V) 4.75 Digital supply (max) (V) 5.25
TQFP (PFB) 48 81 mm² (9 mm × 9 mm)
  • 6 Simultaneous Sampling Channels
  • Fully Differential Inputs
  • 2µs Total Throughput per Channel
  • No Missing Codes
  • Parallel Interface
  • 1MHz Effective Sampling Rate
  • Low Power: 50mW
  • 6X FIFO
  • APPLICATIONS
    • Motor Control
    • Multi-Axis Positioning Systems
    • 3-Phase Power Control
  • 6 Simultaneous Sampling Channels
  • Fully Differential Inputs
  • 2µs Total Throughput per Channel
  • No Missing Codes
  • Parallel Interface
  • 1MHz Effective Sampling Rate
  • Low Power: 50mW
  • 6X FIFO
  • APPLICATIONS
    • Motor Control
    • Multi-Axis Positioning Systems
    • 3-Phase Power Control

The ADS7864 is a dual 12-bit, 500kHz analog-to-digital (A/D) converter with 6 fully differential input channels grouped into three pairs for high speed simultaneous signal acquisition. Inputs to the sample-and-hold amplifiers are fully differential and are maintained differential to the input of the A/D converter. This provides excellent common-mode rejection of 80dB at 50kHz which is important in high noise environments.

The ADS7864 offers a parallel interface and control inputs to minimize software overhead. The output data for each channel is available as a 16-bit word (address and data). The ADS7864 is offered in a TQFP-48 package and is fully specified over the -40°C to +85°C operating range.

The ADS7864 is a dual 12-bit, 500kHz analog-to-digital (A/D) converter with 6 fully differential input channels grouped into three pairs for high speed simultaneous signal acquisition. Inputs to the sample-and-hold amplifiers are fully differential and are maintained differential to the input of the A/D converter. This provides excellent common-mode rejection of 80dB at 50kHz which is important in high noise environments.

The ADS7864 offers a parallel interface and control inputs to minimize software overhead. The output data for each channel is available as a 16-bit word (address and data). The ADS7864 is offered in a TQFP-48 package and is fully specified over the -40°C to +85°C operating range.
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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 500kHz, 12-Bit, 6-Channel Simultaneous Sampling Analog-to-Digital Converter 数据表 (Rev. A) 2002-5-22
电子书 Best of Baker's Best: Precision Data Converters -- SAR ADCs 2015-5-21
应用手册 Using a SAR A/D Converter for Current Measurement in Motor Control Applications (Rev. A) 2015-5-18
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 Interfacing the ADS786x to TMS470 Processors 2006-7-10
应用手册 Interfacing the ADS786x to the MSP430F2013 2006-6-15
用户指南 DEM-CIB Evaluation Fixture Computer Interface Board 2001-2-13

设计与开发

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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
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
TQFP (PFB) 48 Ultra Librarian
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