DDC3256 Datasheet (Texas Instruments) - Current-Input Analog-To-Digital Converter

DDC3256, Current-Input Analog-To-Digital Converter

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.

Up to 256 individual low-level current output devices, such as photodiodes, can be directly connected to its inputs and

DDC3256 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 b