# Title: ISO ADC 2 Click Board™ ## Description: How Does The ISO ADC 2 Click Board™ Work? The ISO ADC 2 Click Board™ is based on the AD7091R, a 12-bit successive-approximation analog-to-digital converter (ADC) with an isolated DC-DC converter, from Analog Devices. This Click board™ allows single-supply operation and consists of three Analog Devices active components: AD8616 a level shifting circuit, AD7091R an ADC stage and ADuM5401 an output isolation stage. The AD8616 is chosen for this application because of its low offset voltage, low bias current, and low noise. The output of the OpAmp is 0.1 V to 2.4 V which matches the input range of the ADC (0 V to 2.5 V) with a 100 mV safety margin to maintain linearity. A single-pole RC filter (R2/C9) follows the OpAmp output stage to reduce the out-of-band noise. The next part of the circuit is the AD7091R, ADC that is chosen because of its ultralow power which is significantly lower than any competitive A/D converter. It features a power-down option, implemented across the serial interface to save power between conversions, described in the Modes of Operation section in the datasheet. After a successful conversion, the ADC sends the data to the MCU that goes through galvanic isolation provided by the ADuM5401 quad-channel digital isolator with an integrated DC-DC converter. The isolator has a secondary side controller architecture with isolated pulse-width modulation (PWM) feedback, and it works on the principle that is common to most switching power supplies. The ISO ADC 2 Click Board™ communicates with MCU using the 3-wire SPI serial interface that operates at clock rates up to 50 MHz used for accessing data from the result register and controlling the modes of operation of the device. The CONVST signal of the AD7091R routed to the RST pin on the mikroBUS™ is used to initiate the conversion process, data acquisition, and to select the mode of operation. This ADC requires the user to initiate a software reset upon Power-Up, and it should be noted that failure to apply the correct software reset command may result in a device malfunction. The ISO ADC 2 Click Board™ uses the SPI communication interface with both 3.3V and 5V. The onboard SMD jumper labelled as VCC SEL allows voltage selection for interfacing with both 3.3V and 5V MCUs. More information about the AD7091R's functionality, electrical specifications, and typical performance can be found in the attached datasheet. However, the Click board™ comes equipped with a library that contains easy to use functions and a usage example that may be used as a reference for the development. SPECIFICATIONS Type ADC,Isolators Applications The ISO ADC 2 Click Board™ can be used for a wide variety of industrial measurements, data acquisition systems, monitoring functions, and many more. On-board modules ISO ADC 2 Click is based on the AD7091R, a 12-bit successive-approximation analog-to-digital converter (ADC) with an isolated DC-DC converter, from Analog Devices. Key Features Low power consumption, fast throughput rate, wide input bandwidth, and more. Interface GPIO,SPI Compatibility mikroBUS Click board size M (42.9 x 25.4 mm) Input Voltage 3.3V or 5V PINOUT DIAGRAM This table shows how the pinout of the ISO ADC 2 Click Board™ corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns). Notes Pin Pin Notes NC 1 AN PWM 16 NC Conversion Initialization CRT 2 RST INT 15 NC SPI Chip Select CS 3 CS RX 14 NC SPI Clock SCK 4 SCK TX 13 NC SPI Data OUT SDO 5 MISO SCL 12 NC NC 6 MOSI SDA 11 NC Power Supply 3.3V 7 3.3V 5V 10 5V Power Supply Ground GND 8 GND GND 9 GND Ground ONBOARD SETTINGS AND INDICATORS Label Name Default Description LD1 PWR - Power LED Indicator JP1 VCC SEL Left Power Supply Voltage Selection 3V3/5V: Left position 3V3, Right position 5V ISO 2 ADC CLICK ELECTRICAL SPECIFICATIONS Description Min Typ Max Unit Supply Voltage -0.3 - 7 V SPI Clock Frequency - - 50 MHz Resolution 12 - - bits Operating Temperature Range -40 - +125 °C ## Product type: Click Board ## Vendor: Mikroelektronika d.o.o. ## Tags: ADC, ADC Click, Analog Devices, Click Board, MikroE, Mixed Signal ## Price range: 43.4 - 43.4 GBP ## Link: https://thedebugstore.com/products/mikroe-4166-iso-adc-2-click-board-uk ## Compare-at price range: 62.0 - 62.0 GBP ## Options - Title: Default Title ## Collections - [New Products](https://thedebugstore.com/a/llms/collections/new-products-debug-store) - [Mikroelektronika d.o.o. 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How Does The ISO ADC 2 Click Board™ Work?

The ISO ADC 2 Click Board™ is based on the AD7091R, a 12-bit successive-approximation analog-to-digital converter (ADC) with an isolated DC-DC converter, from Analog Devices. This Click board™ allows single-supply operation and consists of three Analog Devices active components: AD8616 a level shifting circuit, AD7091R an ADC stage and ADuM5401 an output isolation stage. The AD8616 is chosen for this application because of its low offset voltage, low bias current, and low noise. The output of the OpAmp is 0.1 V to 2.4 V which matches the input range of the ADC (0 V to 2.5 V) with a 100 mV safety margin to maintain linearity. A single-pole RC filter (R2/C9) follows the OpAmp output stage to reduce the out-of-band noise.

iso-adc-click-inner

The next part of the circuit is the AD7091R, ADC that is chosen because of its ultralow power which is significantly lower than any competitive A/D converter. It features a power-down option, implemented across the serial interface to save power between conversions, described in the Modes of Operation section in the datasheet. After a successful conversion, the ADC sends the data to the MCU that goes through galvanic isolation provided by the ADuM5401 quad-channel digital isolator with an integrated DC-DC converter. The isolator has a secondary side controller architecture with isolated pulse-width modulation (PWM) feedback, and it works on the principle that is common to most switching power supplies.

The ISO ADC 2 Click Board™ communicates with MCU using the 3-wire SPI serial interface that operates at clock rates up to 50 MHz used for accessing data from the result register and controlling the modes of operation of the device. The CONVST signal of the AD7091R routed to the RST pin on the mikroBUS™ is used to initiate the conversion process, data acquisition, and to select the mode of operation. This ADC requires the user to initiate a software reset upon Power-Up, and it should be noted that failure to apply the correct software reset command may result in a device malfunction.

The ISO ADC 2 Click Board™ uses the SPI communication interface with both 3.3V and 5V. The onboard SMD jumper labelled as VCC SEL allows voltage selection for interfacing with both 3.3V and 5V MCUs. More information about the AD7091R's functionality, electrical specifications, and typical performance can be found in the attached datasheet. However, the Click board™ comes equipped with a library that contains easy to use functions and a usage example that may be used as a reference for the development.

SPECIFICATIONS

Type ADC,Isolators
Applications The ISO ADC 2 Click Board™ can be used for a wide variety of industrial measurements, data acquisition systems, monitoring functions, and many more.
On-board modules ISO ADC 2 Click is based on the AD7091R, a 12-bit successive-approximation analog-to-digital converter (ADC) with an isolated DC-DC converter, from Analog Devices.
Key Features Low power consumption, fast throughput rate, wide input bandwidth, and more.
Interface GPIO,SPI
Compatibility mikroBUS
Click board size M (42.9 x 25.4 mm)
Input Voltage 3.3V or 5V

PINOUT DIAGRAM

This table shows how the pinout of the ISO ADC 2 Click Board™ corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns).

Notes Pin Mikrobus logo.png Pin Notes
NC 1 AN PWM 16 NC
Conversion Initialization CRT 2 RST INT 15 NC
SPI Chip Select CS 3 CS RX 14 NC
SPI Clock SCK 4 SCK TX 13 NC
SPI Data OUT SDO 5 MISO SCL 12 NC
NC 6 MOSI SDA 11 NC
Power Supply 3.3V 7 3.3V 5V 10 5V Power Supply
Ground GND 8 GND GND 9 GND Ground

ONBOARD SETTINGS AND INDICATORS

Label Name Default Description
LD1 PWR - Power LED Indicator
JP1 VCC SEL Left Power Supply Voltage Selection 3V3/5V: Left position 3V3, Right position 5V

ISO 2 ADC CLICK ELECTRICAL SPECIFICATIONS

Description Min Typ Max Unit
Supply Voltage -0.3 - 7 V
SPI Clock Frequency - - 50 MHz
Resolution 12 - - bits
Operating Temperature Range -40 - +125 °C

 

- description_tag: The ISO ADC 2 Click Board™ is a compact add-on board that represents a completely isolated 12-bit, 300 kSPS data acquisition system. This board features the AD7091R, a successive-approximation analog-to-digital converter (ADC) from Analog Devices. Available from Debug Store UK. - title_tag: MikroE ISO ADC 2 Click Board™ (MIKROE-4166) - manufacturer: Mikroelektronika d.o.o. - warranty: 12 months - amazon_enable: TRUE - amazon_title: ISO ADC 2 Click Board - amazon_product_type: computercomponent - amazon_block: FALSE - amazon_prime_enable: FALSE - amazon_search: MikroElektronika Microelectronica MIKROE-1100 - amazon_uk_price: 39.6 - amazon_uk_currency: GBP - amazon_de_currency: EUR - amazon_de_price: 44.748 - amazon_fr_currency: EUR - amazon_fr_price: 44.748 - amazon_es_currency: EUR - amazon_es_price: 44.748 - amazon_nl_currency: EUR - amazon_nl_price: 44.748 - amazon_it_currency: EUR - amazon_it_price: 44.748 - amazon_se_curency: SEK - amazon_se_price: 451.44 - amazon_product_id: 8606018718924 - amazon_product_id_type: EAN - amazon_update: Update - amazon_short_description: The ISO ADC 2 Click Board™ is a compact add-on board that represents a completely isolated 12-bit, 300 kSPS data acquisition system. This board features the AD7091R, successive-approximation analog-to-digital converter (ADC) from Analog Devices. It uses the 3-wire SPI serial interface for data communication, achieving up to 1 MSPS throughput rate. This Click board™ also features the ADuM5401, isolated DC-DC converter used to isolate the logic signals, power, and feedback paths in the DC-DC converter resulting in total isolation solution. Many features such as high throughput rate with ultralow power consumption, wide input bandwidth, accuracy, and speed make it an ideal choice for a wide variety of industrial measurements, data acquisition systems, monitoring functions, and many more.ISO ADC 2 Click is supported by a mikroSDK compliant library, which includes functions that simplify software development. This Click board™ comes as a fully tested product, ready to be used on a system equipped with the mikroBUS™ socket. - amazon_main_image: https://www.thedebugstore.com/images/product/lg-iso-adc-2-click-front.jpg - amazon_other_image_1: https://www.thedebugstore.com/images/product/lg-iso-adc-2-click-back.jpg - amazon_other_image_2: https://www.thedebugstore.com/images/product/lg-iso-adc-2-click-fusion.jpg - amazon_other_image_3: https://www.thedebugstore.com/images/product/lg-iso-adc-2-click-shuttle.jpg - amazon_other_image_4: https://www.thedebugstore.com/images/product/lg-iso-adc-2-click-clicker.jpg - amazon_other_image_5: https://www.thedebugstore.com/images/product/lg-iso-adc-2-click-breadboard.jpg - amazon_other_image_6: https://www.thedebugstore.com/images/product/lg-iso-adc-2-click-breadboard.jpg - amazon_browse_node: 428655031 - related_products: MIKROE-3827,MIKROE-4153,MIKROE-3869 - mpn: MIKROE-4166 - backorder_label: If no stock shown above, check availability - google_product_category: 2082 - condition: new - custom_product: false - mpn: MIKROE-4166 - google_product_category: Electronics - custom_label_0: Click Board - examples:

We provide a library for the ISO ADC 2 Click Board™ on our LibStock page, as well as a demo application (example), developed using MikroElektronika compilers. The demo can run on all the main MikroElektronika development boards.

Library Description

Key Functions

Example Description

The application is composed of three sections :

Other mikroE Libraries used in the example:

Additional Notes and Information

Depending on the development board you are using, you may need a USB UART click, USB UART 2 click or RS232 click to connect to your PC, for development systems with no UART to USB interface available on the board. The terminal available in all MikroElektronika compilers, or any other terminal application of your choice, can be used to read the message.

MIKROSDK

The ISO ADC 2 Click Board™ is supported with mikroSDK - MikroElektronika Software Development Kit. To ensure proper operation of mikroSDK compliant Click board™ demo applications, mikroSDK should be downloaded from the LibStock and installed for the compiler you are using.

- attachments: [{"download_file":[{"download_file":"ISO ADC 2 Click Board™ Schematic"}],"download_filetype":[{"download_filetype":"pdf"}]},{"download_file":[{"download_file":"Analog Devices ADUM5101 4-Ch Isolator with DC-DC Convertor Datasheet"}],"download_filetype":[{"download_filetype":"pdf"}]},{"download_file":[{"download_file":"Analog Devices AD7091R 12-Bit ADC Datasheet"}]},{"download_file":[{"download_file":"Analog Devices AD8616 OpAmp Datasheet"}],"download_filetype":[{"download_filetype":"pdf"}]}] - device_vendor: Analog Devices Inc. - device_type: AD7091RBRMZ, AD8616ARZ-REEL7, ADUM5401ARWZ-RL - warranty: 12 months - brand: MikroE - key_feature_1: 12-Bit, 300Ksps ADC With Isolated Input - manufacturer: Mikroelektronika d.o.o. - badge: - widget:

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- target_keyword: ISO ADC 2 Click Board - brands: gid://shopify/Metaobject/56256004319 - breadcrumbs: ["gid://shopify/Collection/447955239135","gid://shopify/Collection/241680580797","gid://shopify/Collection/241545314493"] - customhs_code: 847330 - detailed_description: {"type":"root","children":[{"type":"heading","level":3,"children":[{"type":"text","value":"How Does The ISO ADC 2 Click Board™ Work?"}]},{"type":"paragraph","children":[{"type":"text","value":"The "},{"type":"text","value":"ISO ADC 2 Click Board™","bold":true,"italic":true},{"type":"text","value":" is based on the AD7091R, a 12-bit successive-approximation analog-to-digital converter (ADC) with an isolated DC-DC converter, from Analog Devices. This Click board™ allows single-supply operation and consists of three Analog Devices active components: AD8616 a level shifting circuit, AD7091R an ADC stage and ADuM5401 an output isolation stage. The AD8616 is chosen for this application because of its low offset voltage, low bias current, and low noise. The output of the OpAmp is 0.1 V to 2.4 V which matches the input range of the ADC (0 V to 2.5 V) with a 100 mV safety margin to maintain linearity. A single-pole RC filter (R2/C9) follows the OpAmp output stage to reduce the out-of-band noise."}]},{"type":"paragraph","children":[{"type":"text","value":""}]},{"type":"paragraph","children":[{"type":"text","value":"The next part of the circuit is the AD7091R, ADC that is chosen because of its ultralow power which is significantly lower than any competitive A/D converter. It features a power-down option, implemented across the serial interface to save power between conversions, described in the Modes of Operation section in the datasheet. After a successful conversion, the ADC sends the data to the MCU that goes through galvanic isolation provided by the ADuM5401 quad-channel digital isolator with an integrated DC-DC converter. The isolator has a secondary side controller architecture with isolated pulse-width modulation (PWM) feedback, and it works on the principle that is common to most switching power supplies."}]},{"type":"paragraph","children":[{"type":"text","value":"The "},{"type":"text","value":"ISO ADC 2 Click Board™","bold":true},{"type":"text","value":" communicates with MCU using the 3-wire SPI serial interface that operates at clock rates up to 50 MHz used for accessing data from the result register and controlling the modes of operation of the device. The CONVST signal of the AD7091R routed to the RST pin on the mikroBUS™ is used to initiate the conversion process, data acquisition, and to select the mode of operation. This ADC requires the user to initiate a software reset upon Power-Up, and it should be noted that failure to apply the correct software reset command may result in a device malfunction."}]},{"type":"paragraph","children":[{"type":"text","value":"The "},{"type":"text","value":"ISO ADC 2 Click Board™","bold":true},{"type":"text","value":" uses the SPI communication interface with both 3.3V and 5V. The onboard SMD jumper labelled as VCC SEL allows voltage selection for interfacing with both 3.3V and 5V MCUs. More information about the AD7091R's functionality, electrical specifications, and typical performance can be found in the attached datasheet. However, the Click board™ comes equipped with a library that contains easy to use functions and a usage example that may be used as a reference for the development."}]},{"type":"heading","level":3,"children":[{"type":"text","value":"SPECIFICATIONS"}]},{"type":"paragraph","children":[{"type":"text","value":"Type\nADC,Isolators\nApplications\nThe ISO ADC 2 Click Board™ can be used for a wide variety of industrial measurements, data acquisition systems, monitoring functions, and many more.\nOn-board modules\nISO ADC 2 Click is based on the AD7091R, a 12-bit successive-approximation analog-to-digital converter (ADC) with an isolated DC-DC converter, from Analog Devices.\nKey Features\nLow power consumption, fast throughput rate, wide input bandwidth, and more.\nInterface\nGPIO,SPI\nCompatibility\nmikroBUS\nClick board size\nM (42.9 x 25.4 mm)\nInput Voltage\n3.3V or 5V"}]},{"type":"heading","level":3,"children":[{"type":"text","value":"PINOUT DIAGRAM"}]},{"type":"paragraph","children":[{"type":"text","value":"This table shows how the pinout of the "},{"type":"text","value":"ISO ADC 2 Click Board™","bold":true},{"type":"text","value":" corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns)."}]},{"type":"paragraph","children":[{"type":"text","value":"Notes\nPin\nPin\nNotes\nNC\n1\nAN\nPWM\n16\nNC\nConversion Initialization\nCRT\n2\nRST\nINT\n15\nNC\nSPI Chip Select\nCS\n3\nCS\nRX\n14\nNC\nSPI Clock\nSCK\n4\nSCK\nTX\n13\nNC\nSPI Data OUT\nSDO\n5\nMISO\nSCL\n12\nNC\nNC\n6\nMOSI\nSDA\n11\nNC\nPower Supply\n3.3V\n7\n3.3V\n5V\n10\n5V\nPower Supply\nGround\nGND\n8\nGND\nGND\n9\nGND\nGround"}]},{"type":"heading","level":3,"children":[{"type":"text","value":"ONBOARD SETTINGS AND INDICATORS"}]},{"type":"paragraph","children":[{"type":"text","value":"Label\nName\nDefault\nDescription\nLD1\nPWR\n-\nPower LED Indicator\nJP1\nVCC SEL\nLeft\nPower Supply Voltage Selection 3V3/5V: Left position 3V3, Right position 5V"}]},{"type":"heading","level":3,"children":[{"type":"text","value":"ISO 2 ADC CLICK ELECTRICAL SPECIFICATIONS"}]},{"type":"paragraph","children":[{"type":"text","value":"Description\nMin\nTyp\nMax\nUnit\nSupply Voltage\n-0.3\n-\n7\nV\nSPI Clock Frequency\n-\n-\n50\nMHz\nResolution\n12\n-\n-\nbits\nOperating Temperature Range\n-40\n-\n+125\n°C"}]},{"type":"heading","level":3,"children":[{"type":"text","value":" "}]}]} - summary:

The ISO ADC 2 Click Board™ is a compact add-on board that represents a completely isolated 12-bit, 300 kSPS data acquisition system. This board features the AD7091R, a successive-approximation analog-to-digital converter (ADC) from Analog Devices. It uses the 3-wire SPI serial interface for data communication, achieving up to 1 MSPS throughput rate. This Click Board™ also features the ADU 4-Channel Isolator with DC-DC Converter M5401, isolated DC-DC converter used to isolate the logic signals, power, and feedback paths in the DC-DC converter resulting in total isolation solution. Many features such as high throughput rate with ultralow power consumption, wide input bandwidth, accuracy, and speed make it an ideal choice for a wide variety of industrial measurements, data acquisition systems, monitoring functions, and many more.

The ISO ADC 2 Click Board™ is supported by a mikroSDK compliant library, which includes functions that simplify software development. This Click Board™ comes as a fully tested product, ready to be used on a system equipped with the mikroBUS™ socket.