DDC2256A Datasheet - Texas Instruments

DDC2256A Current-Input Analog-To-Digital Converter

The DDC2256A is a 24-bit, 256-channel, currentinput analog-to-digital (A/D) converter. It combines both current-to-voltage integration and A/D conversion so that 256 individual low-level current output devices, such as photodiodes, can be directly connected to its inputs and digitized in parallel (s.

DDC2256A Features

* 1 Single-Chip Solution to Directly Measure 256 LowLevel Currents Simultaneously

* User Adjustable Full-Scale Range

* Adjustable Speed with Integration Times as Low as 58.8 µs (17 KSPS per channel) with 24 bit Resolution

* Power Dissipation as Low as 1.7mW/channel

DDC2256A-etcTI.pdf