The following documents provide information regarding Texas Instruments' integrated circuits used in the assembly of the OPT4001YMNEVM. This user's guide is available from the TI web site under literature number SBOU278. Any letter appended to the literature number corresponds to the document revision that is current at the time of the writing of this document. The latest revision can be found by clicking the link Table 1-2 and is also available from the TI web site, the Texas Instruments' Literature Response Center at (800) 477-8924, and the Product Information Center at (972) 644-5580. When ordering, identify the document by both title and literature number.