產品詳情

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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類型 標題 下載最新的英語版本 日期
* 數據表 DDC264 64-Channel, Current-Input Analog-to-Digital Converter 數據表 (Rev. D) PDF | HTML 2016年 12月 12日
模擬設計期刊 選擇多通道超低電流測量 IC PDF | HTML 英語版 PDF | HTML 2022年 1月 20日
EVM 用戶指南 DDC264EVM User Guide 2011年 3月 20日

設計和開發

如需其他信息或資源，請點擊以下任一標題進入詳情頁面查看（如有）。

評估板

DDC264EVM — DDC264 評估模塊

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.

用戶指南: PDF
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仿真模型

DDC264 IBIS Model

SBAM191.ZIP (15 KB) - IBIS Model
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NFBGA (ZAW) 100 Ultra Librarian

訂購和質量

包含信息：
  • RoHS
  • REACH
  • 器件標識
  • 引腳鍍層/焊球材料
  • MSL 等級/回流焊峰值溫度
  • MTBF/時基故障估算
  • 材料成分
  • 鑒定摘要
  • 持續可靠性監測
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  • 制造廠地點
  • 封裝廠地點

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