October 2015

DocID028405 Rev 1

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UM1955

User manual

Getting started with the multifunctional expansion board based on

operational amplifiers for STM32 Nucleo

Introduction

The X-NUCLEO-IKA01A1 is a multifunctional expansion board based on operational

amplifiers. It provides an easy-to-use and affordable solution for different multifunctional use

cases with your STM32 Nucleo board. The X-NUCLEO-IKA01A1 is compatible with the

Arduino™ UNO R3 connector, and supports the addition of other boards that can be

stacked for enhanced applications with an STM32 Nucleo expansion board. It can be used

as a analog front-end by conditioning signals as an actuator to drive LED or coils, or in a

comparator architecture. Thanks to its current-sensing configuration, it allows current

measurement of any device that has a USB port. For this configuration and the

instrumentation amplifier configuration, a highly accurate operational amplifier (TSZ124) is

used. The expansion board also contains Nanopower (TSU104) and Micropower (TSV734)

operational amplifiers for mobile applications.

This user manual describes how to use the predefined configurations of the X-NUCLEO-

IKA01A1 expansion board:

•

Instrumentation amplifier structure

•

Current sensing with or without USB port

•

Photodiode/UV current sensing

•

Buffer

•

Full wave rectifier

•

Constant current LED driver

•

Window comparator

The expansion board is also equipped with one prototyping area is powered through the

Arduino UNO R3 connectors.

Figure 1. X-NUCLEO-IKA01A1 multifunctional expansion board

www.st.com