The DDC232 is a 20-bit, 32-channel, current-input analog-to-digital (A/D) converter. It combines both current-to-voltage and A/D conversion so that 32 separate low-level current output devices, such as photodiodes, can be directly connected to its inputs and digitized.

For each of the 32 inputs, the DDC232 provides a 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. Adjustable integration times range from 166µs to 1s, allowing currents from fAs to µAs to be continuously measured with outstanding precision.

The DDC232 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-DDC232 system is minimal.

The DDC232 uses a +5V analog supply and a +2.7V to +3.6V digital supply. Operating over the temperature range of 0°C to +70°C, the DDC232 BGA-64 package is offered in two versions: the DDC232C for low-power applications, and the DDC232CK when higher speeds are required.

• Single-Chip Solution to Directly Measure 32 Low-Level Currents
• High-Precision, True Integrating Function
• Integral Linearity:±0.025% of Reading ±1.0ppm of FSR
• Very Low Noise: 5.3ppm of FSR
• Low Power: 7mW/channel
• Adjustable Full-Scale Range
• Adjustable Speed
  • Data Rate up to 6kSPS
  • Integration Times as low as 166.5μs
• 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.

• Number of input channels
• 32
• Resolution (Bits)
• 20
• Features
• Computed Tomography (CT)
• Operating temperature range (C)
• 0 to 70
• Interface type
• Serial
• Rating
• Catalog

DDC232的完整型号有：DDC232CKZXGR、DDC232CKZXGT、DDC232CZXGR、DDC232CZXGT，以下是这些产品的关键参数及官网采购报价：

DDC232CKZXGR，工作温度：0 to 70，封装：NFBGA (ZXG)-64，包装数量MPQ：1000个，MSL 等级/回流焊峰值温度：Level-3-260C-168 HR，引脚镀层/焊球材料：SNAGCU，TI官网DDC232CKZXGR的批量USD价格：67.751（1000+）

DDC232CKZXGT，工作温度：0 to 70，封装：NFBGA (ZXG)-64，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-3-260C-168 HR，引脚镀层/焊球材料：SNAGCU，TI官网DDC232CKZXGT的批量USD价格：69.751（1000+）

DDC232CZXGR，工作温度：0 to 70，封装：NFBGA (ZXG)-64，包装数量MPQ：1000个，MSL 等级/回流焊峰值温度：Level-3-260C-168 HR，引脚镀层/焊球材料：SNAGCU，TI官网DDC232CZXGR的批量USD价格：67.751（1000+）

DDC232CZXGT，工作温度：0 to 70，封装：NFBGA (ZXG)-64，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-3-260C-168 HR，引脚镀层/焊球材料：SNAGCU，TI官网DDC232CZXGT的批量USD价格：69.751（1000+）

DDC232 IBIS Model

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