X-NUCLEO-IKA01A1

X - N U C L E O - I K A 0 1 A 1 Multifunctional expansion board based on operational amplifiers for STM32 Nucleo Data brief Description The X-NUCLEO-IKA01A1 is a multifunctional expansion board based on STMicroelectronics operational amplifiers. It provides an affordable and easy-to-use solution for various 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 board. It can be used as an analog front-end by conditioning signals as actuator to drive LEDs or coils, or in a comparator architecture. Thanks to its current-sensing configuration, it Features allows current measurement of any device that has a Micro-USB port. A highly accurate TSZ124 7 predefined configurations: Micropower operational amplifier is used for this Instrumentation amplifier structure configuration as well as for that of the Current sensing with or without USB instrumentation amplifier. The expansion board Photodiode/ultraviolet (UV) current also contains a TSU104 Nanopower op-amp and sensing a TSV734 Micropower op-amp for mobile Buffer applications. Full wave rectifier Constant current LED driver Window comparator One prototyping area Compatible with STM32 Nucleo boards Comprehensive free development firmware library (X-CUBE-ANALOG1) Powered through the Arduino UNO connectors RoHS compliant October 2015 DocID028328 Rev 1 1/5 www.st.com For further information contact your local STMicroelectronics sales office Schematic diagrams X-NUCLEO-IKA01A1 1 Schematic diagrams Figure 1: X-NUCLEO-IKA01A1 circuit schematic (1 of 2) 4 11 3 Vext 2 Vana 1 C E 33 3 2 DIGITAL (PWM ~) POWER ANALOG IN GSPG0809151150SG 2/5 DocID028328 Rev 1 Internal buffer Window Comparator Arduino UNO R3 Connectors Vcc Arduino Uno CN5 15 Arduino UNO R27 Vcc 16 10k 17 C17 Aref 18 JP3 GND CN6 1 19 22nF 13 VCC 2 20 IORef 12 VCC 3 21 GND 3 TSU104IPT A ~11 Reset V+ 4 22 1 ~10 3.3V C1 5V 5 23 R23 2 V- 5V ~9 R28 6 24 Vcc 20k 0.1F GND 8 10k C0 7 D2 GND And gate 8 25 0.1F Vin 7 10 TSU104IPT C GND GND 26 R41 D4 If outputlow,outof window ~6 D4 Vext 8 Vref P2 GND 9 27 0R A0 ~5 C14 9 500k GND 10 28 R24 C15 5 TSU104IPT B A1 4 R42 0.1F R25 11 29 D3 62k 7 A2 ~3 0R Win in 12 30 100pF 6 A3 R46 2 A1 13 31 R43 0R A4 TX 1 D2 14 32 0R A5 RX 0 GND GND R29 R45 CN8 A2 CN9 GNDGND 10k 0R ESD3 ESDALC6V1-1M2 R44 A4 0R GND GND LED driver Proto typing area Photodiode / UV sensor Vana D2 Vana LED A C16 2 C18 LED K 100pF GND 22nF 470k 1 Out A1 Out A2 R26 OpAm pA JP1 3 Pr9 In+A R33 V+ 1 13 20k R32 TSV734IPT D 2 14 A4 V- Q1 R34 D3 12 Pr10 In-A OutA Pr14 10k 220k R19 12 NPN 39k C21 14 1 C13 1k B R22 100pF 13 Pr13 R40 47nF TSU104IPT D UV D1 1M NC GND GND GND GND OpAmpB Out B1 Out B2 5 GND Pr15 In+B R35 GND 7 C10 Pr11 20k 6 Pr16 In-B OutB R36 GND 39k Pr12 47pF R20 1k C11 R21 Pr5 Pr6 Pr7 Pr8 GND NC GND GND Pr1 Pr2 Pr3 Pr4 4 8 100k