+

+5 V

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Connecting to the LOG114EVM

3

Connecting to the LOG114EVM

The LOG114 requires only a few connections to operate: a 5-V power supply, an input source such as a

photodiode or resistor, and a digital voltmeter or oscilloscope.

3.1

Electrostatic Discharge Warning

CAUTION

Many of the components on the LOG114EVM are susceptible to damage by

electrostatic discharge (ESD). Customers are advised to observe proper ESD

handling precautions when unpacking and handling the EVM, including the use

of a grounded wrist strap at an approved ESD workstation.

3.2

Basic Connections

The connections for 5 V and ground are clearly marked on the LOG114EVM PCB. Figure 6 shows how to

properly connect the power supply to the connector.

Figure 6. Connecting the 5V Power Supply

3.3

Using a Photodiode

An anode of a photodiode can be connected to the LOG114 by either using the pads or pin sockets on the

LOG114EVM. To use the high-current linearity correction circuitry, connect the photodiode as illustrated in

Figure 7.

Figure 7. Using a Photodiode with the High-Current Linearity Correction Circuitry

7

SBOU110

– September 2011

LOG114EVM User Guide

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