Microchip Mcp3561-E/st.
ADC, SIG-DELTA, 24BIT, 153.6KSPS/TSSOP; Resolution (Bits):24bit; Sampling Rate:153.6kSPS; Input Channel Type:Differential, Single Ended; Data Interface:SPI; Supply Voltage Type:Single; Supply Voltage Min:2.7V; Supply Voltage Max:3.6V