1
2
J1
isoGND
DNP
C8
DNP
C4
DNP
C5
0
R2
0
R1
-
IN
+
IN
EVM Overview
2
SBAU256 – May 2016
Copyright © 2016, Texas Instruments Incorporated
AMC1301 Evaluation Module
1
EVM Overview
1.1
Features
This EVM supports the following features:
•
Full-featured evaluation board for the AMC1301 single-channel precision isolation amplifier
•
Screw terminals for easy access to analog inputs and outputs
•
Optional isolated power to VDD1 from VDD2
1.2
Introduction
The AMC1301 is a precision isolation amplifier with an output separated from the input circuitry by a
silicon dioxide (SiO
2
) barrier that is highly resistant to magnetic interference. This barrier has been certified
to provide basic galvanic isolation of up to 7000 V
PEAK
according to UL1577 and IEC60747-5-2
specifications.
For use in high-resolution measurement applications, the input of the AMC1301 is optimized for direct
connection to shunt resistors or other low-level signal sources.
Throughout this document, the abbreviation
EVM
and the term
evaluation module
are synonymous with
the AMC1301EVM.
2
Analog Interface
The analog inputs to the AMC1301 are routed from the two-wire screw terminal at J1. These screw
terminals provide access to the inverting and noninverting inputs of the AMC1301 device installed at U2.
2.1
Analog Inputs
The analog inputs to the AMC1301EVM printed-circuit board (PCB) consists of optional RC filter circuit. By
default, R1 and R2 on the analog input are populated as 0-
Ω
resistors. Capacitors C4, C5, and C8 are not
installed. An example input circuit for the AMC1301 is shown in
Figure 1. AMC1301EVM Schematic: Analog Input Section
