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DDC232 - Analog-to-Digital Converter

General Description

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.

Key Features

  • 1.
  • 2 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 166.5ms.
  • Daisy-Chainable Serial Interface.
  • In-Package Bypass Capacitors Simplify P.

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Other Datasheets by Texas Instruments

Part Number Description
DDC2256A Current-Input Analog-To-Digital Converter
DDC264 Current-Input Analog-to-Digital Converter
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DDC114 20-Bit Analog-To-Digital Converter
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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
DDC232 www.ti.com 32-Channel, Current-Input Analog-to-Digital Converter Check for Samples: DDC232 SBAS331D – AUGUST 2004 – REVISED APRIL 2010 FEATURES 1 •2 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 166.5ms • Daisy-Chainable Serial Interface • In-Package Bypass Capacitors Simplify PCB Design APPLICATIONS • CT Scanner DAS • Photodiode Sensors • X-Ray Detection Systems The DDC232 uses a +5V analog supply and a +2.7V to +3.6V digital supply.