The ADAS1128 is a 24-bit current-to-digital converter that changes photodiode array signals into digital signals. It replaces previous converter-based technology that has lower levels of channel integration. The ADAS1128 offers 128 simultaneously sampled data converter channels, selectable sample rates up to 20 kSPS, and an on-chip temperature sensor and reference buffer, all in a 10 mm × 10 mm ball grid array package. This level of performance and integration means dramatic savings in cost, size, and power at the system level. The ADAS1128 consumes less than half the power of other solutions (4.5 mW/ channel vs. 10 mW/channel). The device also offers superior overall performance specs, such as no charge loss, more choices of full scale ranges, and ultralow noise (down to 0.4 fC for low dose X-ray systems).