The RHFAD128 from STMicroelectronics is a Analog to Digital Converter with Sample Rate 50 ksps to 1 Msps, Resolution 12 Bits, Input Bandwidth 6.8 MHz, Input Voltage Range 0.8 to 2.1 V, Supply Voltage 2.7 to 3.6 V. Tags: Surface Mount. More details for RHFAD128 can be seen below.