DDC264 - 64 通道电流输入模数转换器

DDC264是TI德州仪器公司的一款电流输入ADC产品，DDC264是64 通道电流输入模数转换器，本站介绍了DDC264的封装应用图解、特点和优点、功能等，并给出了与DDC264相关的TI元器件型号供参考。

DDC264 - 64 通道电流输入模数转换器 - 电流输入ADC - 模数转换器 - 德州仪器

产品描述

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 160µs to 1s, 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 +5V analog supply and a +2.7V to +3.6V 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 BGA-100 package is offered in two versions: the DDC264C for low-power applications, and the DDC264CK when higher speeds are required.

产品特性

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: 3mW/channel
Extremely Linear: INL = ±0.025% of Reading ±1.0ppm of FSR
Low Noise: 6.3ppm of FSR
Adjustable Full-Scale Range
Adjustable Speed
- Data Rates up to 6kSPS with 20-bit Performance
- Integration Times as low as 160µs
Daisy-Chainable Serial Interface
In-Package Bypass Capacitors Simplify PCB Design

APPLICATIONS

CT Scanner DAS
Photodiode Sensors
X-Ray Detection Systems

All trademarks are the property of their respective owners.

下面可能是您感兴趣的TI德州仪器公司电流输入ADC元器件

TI公司产品现货专家，订购TI公司产品不限最低起订量，TI芯片大陆现货即时发货，香港库存3-5天发货，海外库存7-10天发货

寻找全球TI代理商现货货源 - TI公司（德州仪器）电子元件在线订购