Datasheet > DDC316_17

DDC316_17

更新时间： 2024-10-29 02:58:15

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
24页	391K
描述
16-Channel, Current-Input Analog-to-Digital Converter

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DDC316_17 数据手册

DDC316

www.ti.com .................................................................................................................................................................................................. SBAS370–MARCH 2008

16-Channel, Current-Input

Analog-to-Digital Converter

FEATURES

DESCRIPTION

•

SINGLE-CHIP SOLUTION TO MEASURE 16

LOW-LEVEL CURRENTS

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)

•

INTEGRATING I-TO-V CONVERSION

FRONT-END

conversion so that 16 separate low-level current

output devices (such as photodiodes) can be directly

connected to its inputs and digitized.

•

PROGRAMMABLE FULL-SCALE : 3pC to 12pC

ADJUSTABLE SPEED:

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 10µs to 1ms.

–

Data Rate Up To 100kSPS

Integration Time Down To 10µs

•

ANALOG SUPPLY: +5V

DIGITAL SUPPLY: +3.3V

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.

APPLICATIONS

•

CT SCANNER DAS

PHOTODIODE SENSORS

X-RAY DETECTION SYSTEMS

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.

Protected by US Patent #5841310

AVDD

VREF

DVDD

DDC316

IN1

IN2

I to V

CLK

CONV

DIN_CFG

RESET

Control

I to V

IN3

IN4

DVALID

DIN

ADCs

DCLK

Serial

DOUT1

DOUT2

DOUT3

DOUT4

Interface

IN16

I to V

AGND

DGND

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...24

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