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DDC3256 - Current-Input Analog-To-Digital Converter

Datasheet Summary

Description

The DDC3256 is a 24-bit, 256-channel, current-input analog-to-digital (A/D) converter.

It combines both, current-to-voltage conversion by current integration, and A/D conversion.

Features

  • Single-chip solution to directly measure 256 lowlevel currents simultaneously.
  • Adjustable full-scale charge range up to 320 pC.
  • Input current: 1 µA (maximum).
  • Adjustable speed with integration times as low as 50 µs (20 KSPS per channel).
  • Resolution: 24 bit.
  • Low power dissipation: 1.2 mW/channel.
  • Integral non-linearity: ±0.025% of reading ±1 ppm of full scale range (all channels active).
  • Low noise: 0.26 fCrms at 320 pC FSR w.

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Datasheet preview – DDC3256

Datasheet Details

Part number DDC3256
Manufacturer Texas Instruments
File Size 609.65 KB
Description Current-Input Analog-To-Digital Converter
Datasheet download datasheet DDC3256 Datasheet
Additional preview pages of the DDC3256 datasheet.

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Full PDF Text Transcription

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DDC3256 SLASFA0 – JUNE 2023 DDC3256 256-Channel, Current-Input Analog-To-Digital Converter 1 Features • Single-chip solution to directly measure 256 lowlevel currents simultaneously • Adjustable full-scale charge range up to 320 pC • Input current: 1 µA (maximum) • Adjustable speed with integration times as low as 50 µs (20 KSPS per channel) • Resolution: 24 bit • Low power dissipation: 1.2 mW/channel • Integral non-linearity: ±0.025% of reading ±1 ppm of full scale range (all channels active) • Low noise: 0.26 fCrms at 320 pC FSR with 20 pF sensor capacitance • No charge loss • On-chip temperature sensor • Serial LVDS output interface • Single 1.
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