Texas Instruments AMC1301EVM, Руководство пользователя

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EVM Operation
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4 SBAU256 – May 2016
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Copyright © 2016, Texas Instruments Incorporated
AMC1301 Evaluation Module
4 EVM Operation
This section describes the general operation of the AMC1301EVM.
4.1 Isolated Power and Analog Inputs: J1 and J2
The analog input to the AMC1301EVM board can be applied directly to J1 pins 1 and 2.
CAUTION
Carefully review the AMC1301 product data sheet for the limitations of the
analog input range, and ensure that the appropriate analog and digital voltages
are applied before connecting any analog input to the EVM.
Table 2 summarizes the details of J1.
Table 2. J1: Analog Inputs
Pin Number Signal Description
J1.1 IN+ Noninverting input to the AMC1301 (pin 2)
J1.2 IN– Inverting analog input to the AMC1301 (pin 3)
The isolated power input to the AMC1301EVM PCB can be applied directly to J2, pins 1 and 2. Table 3
lists the details of J2.
Table 3. J2: Isolated Power
Pin Number Signal Description
J2.1 GND1 Connection to the AMC1301 GND1 terminal (pin 4)
J2.2 VDD1 Connection to the AMC1301 VDD1 terminal (pin 1)
4.2 User Power and Analog Output: J3 and J4
The VDD2 power input to the AMC1301EVM PCB can be applied directly to J3, pins 1 and 2. Table 4 lists
the details of J3.
Table 4. J3: VDD2 Power
Pin Number Signal Description
J3.1 GND2 Connection to the AMC1301 GND2 terminal (pin 5)
J3.2 VDD2 Connection to the AMC1301 VDD2 terminal (pin 8)
The analog output from the AMC1301EVM board is applied directly to J4, pins 1 and 2. Table 5
summarizes the details of J4.
Table 5. J4: Analog Output
Pin Number Signal Description
J4.1 VOUT– Inverting analog output from the AMC1301 (pin 7)
J4.2 VOUT+ Noninverting output from the AMC1301 (pin 6)
4.3 Device Operation
After the VDD1 and VDD2 power is applied to the AMC1301EVM, the analog outputs are available with a
fixed gain of 8 and a dc offset equal to VDD2 / 2.