User Guide Rev. 0
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Overview

Features and Benefits

  • Full-featured evaluation board for the ADL5308
  • Supports external electrical input or on-board photodiode (PD) for optical input
  • On-chip or external PD bias (PDB)
  • Comparator reference and output connectors with adjustable hysteresis

Product Details

The ADL5308-EVALZ evaluation board allows evaluation of the ADL5308 logarithmic converter IC.

The ADL5308 is a monolithic logarithmic transimpedance amplifier, optimized for measurement of low frequency, and wide dynamic range signal power in fiber optic systems. It produces an output voltage proportional to the logarithm of the ratio between the input current at pin INP, and an internal reference current. The reference current can also be supplied externally through the IREF interface.

The logarithmic slope and intercept are both factory-trimmed to a nominal value of 200 mV/dec and 10 pA respectively. Both can be adjusted through the I2C interface.

Full specifications on the ADL5308 are available in the ADL5308 data sheet available from Analog Devices, Inc., and must be consulted with the user guide when using the ADL5308-EVALZ evaluation board.

Applicable Parts

Package Contents

  • ADL5308-EVALZ evaluation board

    • Getting Started

    EQUIPMENT NEEDED

  • 5 V DC power supply (minimum 50 mA output current)
  • Precision source measurement unit (for example, Keithley 236)
  • Triax cable
  • Triax-to-BNC adapter (Triax center to BNC center, Triax shield to BNC shield, Triax inner guard may be connected to BNC shield or left floating.)
  • BNC-to-SMA adapter
  • Two digital multimeters
  • Oscilloscope
  • DC2026C (Linduino® One) board (Required only for adjusting the ADL5308's internal registers. Not needed for the evaluation of ADL5308 in factory default settings.)

    • DOCUMENTS NEEDED

  • ADL5308 data sheet

    • Documentation & Resources

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