INPUT AND OUTPUT CAPACITOR The TPS709xx are stable with output capacitors with an effective capacitance of 2.0 μF or greater for output voltages below 1.5 V. For output voltages equal or greater than 1.5 V, the minimum effective capacitance for stability…
Datasheet 上面说明:The positive full-scale input produces an output code of 7FF0h and the negative full-scale input produces an output code of 8000h.首先你实际测量下实际输入是不是满量程了。Config Register配置成默认的 配置成默认的8583h的话,要注意Bits [11:9] PGA[2:0]: Programmable gain amplifier…