Datasheet

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EVM Operation

4.3 Device Operation

Once the VDD1 and VDD2 power is applied to the AMC1100EVM, the analog output is available with a

fixed gain of 8 and a dc offset equal to VDD2/2.

An analog input signal may be applied directly at screw terminal J2. Refer to Figure 1 and Table 2 for

details. The differential analog input range, (VIN+) – (VIN–), is specified at ±250 mV with a maximum of

±320 mV before clipping occurs.

The analog output has a nominal gain of 8 through the AMC1100 isolation amplifier. With an input voltage

of ±250 mV, the nominal output is therefore ±2.0 V. The output voltage is centered on VDD/2 and provides

a convenient analog input range to the embedded analog-to-digital converters (ADCs) of the MSP430 and

TMS320C2000 series of digital processors.

SBAU196–February 2012 AMC1100EVM

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