Texas Instruments, Dual 20 bit- ADC 2ksps, 28-Pin SOIC

The Texas offers a DDC series of a dual input, wide dynamic range, charged glitzing analog to digital (A/D) converter with 20-bit resolution with a low level current output devices, such as photo sensors, can be directly connected to its inputs. It combines current to voltage conversion, continuous integration, programmable, full-scale range, A/D conversion.

Monolithic charge measurement analog to digital converter
Wide dynamic range digital result
It provide single-supply operation