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集成型和特殊功能数据转换器
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计算机断层扫描 (CT) AFE

DDC264

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64 通道电流输入模数转换器

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DDC264

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数据表 立即订购

米6体育平台手机版_好二三四详情

Number of input channels 64 Resolution (Bits) 20 Features Computed Tomography (CT) Operating temperature range (°C) 0 to 70 Interface type Serial Rating Catalog
Number of input channels 64 Resolution (Bits) 20 Features Computed Tomography (CT) Operating temperature range (°C) 0 to 70 Interface type Serial Rating Catalog
NFBGA (ZAW) 100 81 mm² 9 x 9
  • Single-Chip Solution to Directly Measure 64 Low-Level Currents
  • Proven High-Precision, True Integrating Architecture With 100% Charge Collection
  • Easy Upgrade for Existing DDC Family Applications
  • Very Low Power: 3 mW/channel
  • Extremely Linear: INL = ±0.025% of Reading ±1 ppm of FSR
  • Low Noise: 6.3 ppm of FSR
  • Adjustable Full-Scale Range
  • Adjustable Speed
    • Data Rates up to 6 kSPS With 20-bit Performance
    • Integration Times as low as 160 µs
  • Daisy-Chainable Serial Interface
  • In-Package Bypass Capacitors Simplify PCB Design
  • APPLICATIONS
    • CT Scanner DAS
    • Photodiode Sensors
    • X-Ray Detection Systems

All other trademarks are the property of their respective owners
  • Single-Chip Solution to Directly Measure 64 Low-Level Currents
  • Proven High-Precision, True Integrating Architecture With 100% Charge Collection
  • Easy Upgrade for Existing DDC Family Applications
  • Very Low Power: 3 mW/channel
  • Extremely Linear: INL = ±0.025% of Reading ±1 ppm of FSR
  • Low Noise: 6.3 ppm of FSR
  • Adjustable Full-Scale Range
  • Adjustable Speed
    • Data Rates up to 6 kSPS With 20-bit Performance
    • Integration Times as low as 160 µs
  • Daisy-Chainable Serial Interface
  • In-Package Bypass Capacitors Simplify PCB Design
  • APPLICATIONS
    • CT Scanner DAS
    • Photodiode Sensors
    • X-Ray Detection Systems

All other trademarks are the property of their respective owners

The DDC264 is a 20-bit, 64-channel, current-input analog-to-digital (A/D) converter. It combines both current-to-voltage and A/D conversion so that 64 separate low-level current output devices, such as photodiodes, can be directly connected to its inputs and digitized.

For each of the 64 inputs, the DDC264 uses the proven dual switched integrator front-end. This configuration allows for continuous current integration: while one integrator is being digitized by the onboard A/D converter, the other is integrating the input current. This architecture provides both a very stable offset and a loss-less collection of the input current. Adjustable integration times range from 160 µs to 1 s, allowing currents from fAs to µAs to be continuously measured with outstanding precision.

The DDC264 has a serial interface designed for daisy-chaining in multi-device systems. Simply connect the output of one device to the input of the next to create the chain. Common clocking feeds all the devices in the chain so that the digital overhead in a multi-DDC264 system is minimal.

The DDC264 uses a 5-V analog supply and a 2.7-V to 3.6-V digital supply. Bypass capacitors within the DDC264 package help minimize the external component requirements. Operating over the temperature range of 0°C to 70°C, the DDC264 100-pin NFBGA package is offered in two versions: the DDC264C for low-power applications, and the DDC264CK when higher speeds are required.

The DDC264 is a 20-bit, 64-channel, current-input analog-to-digital (A/D) converter. It combines both current-to-voltage and A/D conversion so that 64 separate low-level current output devices, such as photodiodes, can be directly connected to its inputs and digitized.

For each of the 64 inputs, the DDC264 uses the proven dual switched integrator front-end. This configuration allows for continuous current integration: while one integrator is being digitized by the onboard A/D converter, the other is integrating the input current. This architecture provides both a very stable offset and a loss-less collection of the input current. Adjustable integration times range from 160 µs to 1 s, allowing currents from fAs to µAs to be continuously measured with outstanding precision.

The DDC264 has a serial interface designed for daisy-chaining in multi-device systems. Simply connect the output of one device to the input of the next to create the chain. Common clocking feeds all the devices in the chain so that the digital overhead in a multi-DDC264 system is minimal.

The DDC264 uses a 5-V analog supply and a 2.7-V to 3.6-V digital supply. Bypass capacitors within the DDC264 package help minimize the external component requirements. Operating over the temperature range of 0°C to 70°C, the DDC264 100-pin NFBGA package is offered in two versions: the DDC264C for low-power applications, and the DDC264CK when higher speeds are required.
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类型 标题 下载最新的英语版本 日期
* 数据表 DDC264 64-Channel, Current-Input Analog-to-Digital Converter 数据表 (Rev. D) PDF | HTML 2016年 12月 12日
模拟设计期刊 选择多通道超低电流测量 IC PDF | HTML 英语版 PDF | HTML 2022年 1月 20日
EVM 用户指南 DDC264EVM User Guide 2011年 3月 20日

设计和开发

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）。

评估板

DDC264EVM — DDC264 评估模块

The DDC264EVM provides an easy-to-use platform for evaluating the DDC264 charge digitizing A/D converters. A PC interface board and four DDC264 devices are included along with software that makes analysis and testing of these devices manageable.

用户指南: PDF
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仿真模型

DDC264 IBIS Model

SBAM191.ZIP (15 KB) - IBIS Model
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模拟工具

PSPICE-FOR-TI — 适用于 TI 设计和模拟工具的 PSpice®

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米6体育平台手机版_好二三四系列以及精选的模拟行为模型。

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订购和质量

包含信息：
  • RoHS
  • 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
包含信息：
  • 制造厂地点
  • 封装厂地点

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