SBAU330C June 2019 – January 2022 AMC3301 , AMC3301-Q1 , AMC3302 , AMC3302-Q1 , AMC3330 , AMC3330-Q1
After the VDD power is applied to the AMC3301EVM, AMC3302EVM, or AMC3330EVM, the analog outputs are available with a fixed gain and a DC common-mode offset equal to 1.44 V.
An analog input signal can be applied directly at screw terminal J2. See Figure 2-1 and Table 4-1 for details. The differential analog input range for the AMC3301, INP to INN, is specified as ±250 mV with a maximum of ±320 mV before clipping occurs. The differential analog input range for the AMC3302, INP to INN, is specified as ±50 mV with a maximum of ±64 mV before clipping occurs. The differential analog input range for the AMC3330, INP to INN, is specified as ±1 V with a maximum of ±1.25 V before clipping occurs.
The analog output of the AMC3301 isolation amplifier has a nominal gain of 8.2, whereas the AMC3302 isolation amplifier has a nominal gain of 41, and the AMC3330 isolation amplifier has a nominal gain of 2. For the AMC3301, with a full-scale input voltage of ±250 mV, the nominal output is ±2.05 V. For the AMC3302, with a full-scale input voltage of ±50 mV, the nominal output is ±2.05 V. For the AMC3330, with a full-scale input voltage of ±1 V the nominal output is ±2 V.
The output voltage of the AMC3301EVM, AMC3302EVM, and AMC3330EVM is centered on 1.44 V and provides a convenient analog input range to the embedded analog-to-digital converters (ADCs) of the MSP430 and TMS320C2000 series of digital processors.