LOG114EVM Datasheet, PDF (8/21 Pages) Texas Instruments – LOG114EVM User Guide

Connecting to the LOG114EVM
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Figure 8 shows the connections required to bypass the high-current linearity circuitry. This connection
results in placing zero bias across the photodiode.
Figure 8. Using a Photodiode Without the High-Current Linearity Correction Circuitry
A 0.5-V reverse bias can be easily placed across the photodiode by connecting the photodiode as shown
in Figure 9. When connecting the photodiode in this configuration, the high-current linearity correction
circuitry is bypassed.
Figure 9. Applying a 0.5-V Reverse Bias to the Photodiode
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LOG114EVM User Guide
Copyright © 2011, Texas Instruments Incorporated
SBOU110 – September 2011
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