DDC316CGXGR集成电路（IC）的模数转换器（ADC）规格书PDF中文资料

DDC316CGXGR属于集成电路（IC）的模数转换器（ADC）。由美国德州仪器公司制造生产的DDC316CGXGR模数转换器（ADC）模数转换器（ADC、A/D 或 A 转 D）对模拟信号进行采样，例如由麦克风采集的声音或传感器的输出，然后将其转换为数字信号。一般来说，数字输出是二进制补码二进制数，与输入成比例。输入类型可能是差分、伪差分或单端输入。模数转换器可按照位数、采样率、输入数、接口、转换器数和架构（例如自适应增量、双斜率、折叠、流水线、SAR、三角积分、两步式）进行选择。

FEATURES

· SINGLE-CHIP SOLUTION TO MEASURE 16

LOW-LEVEL CURRENTS

· INTEGRATING I-TO-V CONVERSION

FRONT-END

· PROGRAMMABLE FULL-SCALE : 3pC to 12pC

· ADJUSTABLE SPEED:

– Data Rate Up To 100kSPS

– Integration Time Down To 10ms

· ANALOG SUPPLY: +5V

· DIGITAL SUPPLY: +3.3V

APPLICATIONS

· CT SCANNER DAS

· PHOTODIODE SENSORS

· X-RAY DETECTION SYSTEMS

DESCRIPTION

The DDC316 is a 16-bit, 16-channel, current-input

analog-to-digital converter (ADC). It combines both

current-to-voltage and analog-to-digital (A/D)

conversion so that 16 separate low-level current

output devices (such as photodiodes) can be directly connected to its inputs and digitized.

For each of the 16 inputs, the DDC316 provides a

dual-switched integrator front-end. This configuration

allows for continuous current integration: while one

integrator is being digitized by the on-chip ADC, the

other is integrating the input current. Adjustable integration times range from 10ms to 1ms.

The DDC316 provides a serial interface of the output

data, either multiplexed onto a single data output pin or parallel on four output pins. The output mode can

be selected based on the available integration time.

The DDC316 uses a +5V analog supply and a +3.3V

digital supply. Operating over the temperature range

of 0°C to +70°C, the DDC316 is offered in a BGA-64

package.