DDC316 16-Channel Current-Input 16-Bit Analog-to-Digital Converter (ADC) | TI.com

DDC316
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16-Channel Current-Input 16-Bit Analog-to-Digital Converter (ADC)

 

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 10µs 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.

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 10µs
  • ANALOG SUPPLY: +5V
  • DIGITAL SUPPLY: +3.3V
  • APPLICATIONS
    • CT SCANNER DAS
    • PHOTODIODE SENSORS
    • X-RAY DETECTION SYSTEMS

Protected by US Patent #5841310
All trademarks are the property of their respective owners.

Parametrics

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Part number Order Number of input channels Resolution (Bits) Interface Features Operating temperature range (C) Package size: mm2:W x L (PKG) Package Group Approx. price (US$)
DDC316 Order now 16     16     Serial     Computed Tomography (CT)     0 to 70     64NFBGA: 64 mm2: 8 x 8 (NFBGA | 64)     NFBGA | 64     48.25 | 1ku    
DDC112 Order now 2     20     Serial     Computed Tomography (CT)     -40 to 85
0 to 70    
28SOIC: 184 mm2: 10.3 x 17.9 (SOIC | 28)
32TQFP: 81 mm2: 9 x 9 (TQFP | 32)    
SOIC | 28
TQFP | 32    
12.60 | 1ku    
DDC1128 Samples not available 128     20     Serial     Computed Tomography (CT)     0 to 70     192NFBGA: 81 mm2: 9 x 9 (NFBGA | 192)     NFBGA | 192     198.00 | 1ku    
DDC114 Order now 4     20     Serial     Computed Tomography (CT)     -40 to 85     48VQFN: 49 mm2: 7 x 7 (VQFN | 48)     VQFN | 48     17.85 | 1ku    
DDC118 Samples not available 8     20     Serial     Computed Tomography (CT)     -40 to 85     48VQFN: 49 mm2: 7 x 7 (VQFN | 48)     VQFN | 48     30.00 | 1ku    
DDC2256A Samples not available 256     24     LVDS/Serial     Computed Tomography (CT)     0 to 70     323NFBGA: 224 mm2: 14 x 16 (NFBGA | 323)     NFBGA | 323     299.00 | 1ku    
DDC232 Samples not available 32     20     Serial     Computed Tomography (CT)     0 to 70     64NFBGA: 64 mm2: 8 x 8 (NFBGA | 64)     NFBGA | 64     70.00 | 1ku    
DDC264 Order now 64     20     Serial     Computed Tomography (CT)     0 to 70     100NFBGA: 81 mm2: 9 x 9 (NFBGA | 100)     NFBGA | 100     99.00 | 1ku