Texas Instruments AMC1100 Evaluation Module AMC1100EVM AMC1100EVM Datenbogen
Produktcode
AMC1100EVM
R1
12 W
R2
12 W
+IN
-IN
C4
10 pF
10 pF
C5
10 pF
10 pF
C3
330 pF
330 pF
J2
2
1
GND
EVM Overview
1
EVM Overview
1.1
Features
AMC1100EVM:
•
Full-featured evaluation board for the AMC1100 single-channel precision isolation amplifier
•
Screw terminals for easy access to analog inputs and outputs
1.2
Introduction
The AMC1100 is a precision isolation amplifier with an output separated from the input circuitry by a
silicon dioxide (SiO
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 4000 V
PEAK
according to UL1577 and IEC60747-5-2
specifications.
For use in high-resolution measurement applications, the input of the AMC1100 is optimized for direct
connection to shunt resistors or other low-level signal sources.
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 AMC1100EVM.
the AMC1100EVM.
2
Analog Interface
The analog input to the AMC1100 is routed from a two-wire screw terminal screw at J4. This screw
terminal gives the user access to the inverting and noninverting inputs of the AMC1100.
terminal gives the user access to the inverting and noninverting inputs of the AMC1100.
2.1
Analog Inputs
The analog input to the AMC1100EVM printed circuit board (PCB) consists of simple RC filter circuits. The
input circuit for the AMC1100 is shown in
input circuit for the AMC1100 is shown in
.
Figure 1. AMC1100EVM Schematic: Analog Input Section
2
AMC1100EVM
SBAU196 – February 2012
Copyright © 2012, Texas Instruments Incorporated