When the VDD1 and VDD2 power is applied to the EVM, the differential analog output is available with a fixed gain of 8.2 for the AMC1400 or 1 for the AMC1411 and a DC offset equal to 1.44 V (typical).

An analog input signal may be applied directly at screw terminal J3. See Figure 2-1 and Table 4-1 for details. The analog input range is specified at –250 mV to 250 mV for the AMC1400 or 0 V to 2 V for the AMC1411.

For the AMC1400 isolation amplifier, the analog output has a nominal gain of 8.2. With an input voltage of –250 mV to 250 mV, the nominal output is –2 V to 2 V differential. For the AMC1411 isolation amplifier, the analog output has a nominal gain of 1. With an input voltage of 0 V to 2 V, the nominal output is 0 V to 2 V differential. For both devices the output is centered on a 1.44-V output common-mode voltage, providing a convenient analog input range to the embedded ADCs of the MSP430 and TMS320C2000 series of digital processors.