The DAC 10 Click Board™ as its foundation uses the DAC53401, a 10-bit voltage-output smart digital-to-analog converter from Texas Instruments. This device consumes extremely low power and has a non-volatile memory (NVM), an internal reference, and an I2C serial interface. It also has a power-on-reset circuit that makes sure all the registers start with default or user-programmed settings using NVM. It operates with either an internal reference or the power supply as a reference and provides full-scale output from 0V to 5.5V.
The DAC53401 includes digital slew rate control and supports basic signal generation such as square, ramp, and sawtooth waveforms. It also can generate pulse-width modulation (PWM) output with the combination of the triangular or sawtooth waveform and the VFB terminal. The DAC53401 is also called a smart DAC device because of its advanced integrated features. The force-sense output, PWM output, and NVM capabilities of this smart DAC enable system performance and control without using the software. These features allow DAC53401 to go beyond a conventional DAC's limitations that depend on a processor to function.
The DAC 10 Click Board™ communicates with MCU using the standard I2C 2-Wire interface to read data and configure settings, supporting Standard Mode operation with a clock frequency up to 100kHz, Fast Mode up to 400kHz, and Fast Mode Plus up to 1MHz. Besides, it also allows the choice of the three least significant bits of its I2C slave address by positioning the SMD jumper labeled as ADDR SEL to an appropriate position marked as 0, 1, SCL, and SDA, providing the user with a choice of 4 I2C Slave addresses.
The DAC 10 Click Board™ can operate with both 3.3V and 5V logic voltage levels selected via the VCC SEL jumper. This way, it is allowed for both 3.3V and 5V capable MCUs to use the I2C communication lines properly. However, the Click board™ comes equipped with a library containing easy-to-use functions and an example code that can be used, as a reference, for further development.
| Type | DAC |
| Applications | Can be used for applications such as LED and general-purpose bias point generation, power supply control, programmable reference, and more |
| On-board modules | DAC53401 - 10-bit voltage-output smart digital-to-analog converter from Texas Instruments |
| Key Features | Low power consumption, voltage-output smart DAC, user-programmable nonvolatile memory, I2C compatible interface, programmable waveform generation, PWM output using triangular waveform and VFB terminal, and more |
| Interface | I2C |
| Compatibility | mikroBUS |
| Click board size | M (42.9 x 25.4 mm) |
| Input Voltage | 3.3V or 5V |
This table shows how the pinout on DAC 10 Click 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 | ||
| NC | 2 | RST | INT | 15 | NC | ||
| NC | 3 | CS | RX | 14 | NC | ||
| NC | 4 | SCK | TX | 13 | NC | ||
| NC | 5 | MISO | SCL | 12 | SCL | I2C Clock | |
| NC | 6 | MOSI | SDA | 11 | SDA | I2C Data | |
| Power Supply | 3.3V | 7 | 3.3V | 5V | 10 | 5V | Power Supply |
| Ground | GND | 8 | GND | GND | 9 | GND | Ground |
| Label | Name | Default | Description |
|---|---|---|---|
| LD1 | PWR | - | Power LED Indicator |
| JP1 | VCC SEL | Left | Logic Level Voltage Selection 3V3/5V: Left position 3V3, Right position 5V |
| JP2-JP3 | ADDR SEL | Left | I2C Address Selection 0/1/SCL/SDA: Left position 0, Right position 1, Upper position SCL, Lower position SDA |
| Description | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage | 3.3 | - | 5 | V |
| Output Voltage Range | 0 | - | 5.5 | V |
| Resolution | - | 10 | - | bits |
| Operating Temperature Range | -40 | +25 | +125 | °C |
We provide a library for the DAC 10 Click Board™ as well as a demo application (example), developed using MikroElektronika compilers. The demo can run on all the main MikroElektronika development boards.
The package can be downloaded/installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe Github account.
This library contains API for the DAC 10 Click Board™ driver.
dac10_cfg_setup - Config Object Initialization function.dac10_init - Initialization function.This example demonstrates the use of the DAC 10 Click Board™.
The demo application is composed of two sections :
void application_task ( void )
{
float step = REFERENCE_VOLTAGE / NUMBER_OF_STEPS;
float output_voltage = step;
uint8_t cnt = 0;
while ( cnt < NUMBER_OF_STEPS )
{
dac10_set_output_voltage ( &dac10, REFERENCE_VOLTAGE, output_voltage );
log_printf( &logger, " DAC output voltage set to %.2f Vrn", output_voltage );
output_voltage += step;
cnt++;
Delay_ms( 2000 );
}
}
The full application code, and ready to use projects can be installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe Github account.
Other mikroE Libraries used in the example:
Depending on the development board you are using, you may need 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.
The DAC 10 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.
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This device consumes extremely low power and has a non-volatile memory (NVM), an internal reference, and an I2C serial interface. It also has a power-on-reset circuit that makes sure all the registers start with default or user-programmed settings using NVM. It operates with either an internal reference or the power supply as a reference and provides full-scale output from 0V to 5.5V."}]},{"type":"paragraph","children":[{"type":"text","value":""}]},{"type":"paragraph","children":[{"type":"text","value":"The DAC53401 includes digital slew rate control and supports basic signal generation such as square, ramp, and sawtooth waveforms. It also can generate pulse-width modulation (PWM) output with the combination of the triangular or sawtooth waveform and the VFB terminal. The DAC53401 is also called a smart DAC device because of its advanced integrated features. The force-sense output, PWM output, and NVM capabilities of this smart DAC enable system performance and control without using the software. These features allow DAC53401 to go beyond a conventional DAC's limitations that depend on a processor to function."}]},{"type":"paragraph","children":[{"type":"text","value":"The "},{"type":"text","value":"DAC 10 Click Board™","bold":true},{"type":"text","value":" communicates with MCU using the standard I2C 2-Wire interface to read data and configure settings, supporting Standard Mode operation with a clock frequency up to 100kHz, Fast Mode up to 400kHz, and Fast Mode Plus up to 1MHz. Besides, it also allows the choice of the three least significant bits of its I2C slave address by positioning the SMD jumper labeled as ADDR SEL to an appropriate position marked as 0, 1, SCL, and SDA, providing the user with a choice of 4 I2C Slave addresses."}]},{"type":"paragraph","children":[{"type":"text","value":"The "},{"type":"text","value":"DAC 10 Click Board™","bold":true},{"type":"text","value":" can operate with both 3.3V and 5V logic voltage levels selected via the VCC SEL jumper. This way, it is allowed for both 3.3V and 5V capable MCUs to use the I2C communication lines properly. However, the Click board™ comes equipped with a library containing easy-to-use functions and an example code that can be used, as a reference, for further development."}]},{"type":"heading","level":3,"children":[{"type":"text","value":"SPECIFICATIONS"}]},{"type":"paragraph","children":[{"type":"text","value":"Type\nDAC\nApplications\nCan be used for applications such as LED and general-purpose bias point generation, power supply control, programmable reference, and more\nOn-board modules\nDAC53401 - 10-bit voltage-output smart digital-to-analog converter from Texas Instruments\nKey Features\nLow power consumption, voltage-output smart DAC, user-programmable nonvolatile memory, I2C compatible interface, programmable waveform generation, PWM output using triangular waveform and VFB terminal, and more\nInterface\nI2C\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 on DAC 10 Click 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\nNC\n2\nRST\nINT\n15\nNC\nNC\n3\nCS\nRX\n14\nNC\nNC\n4\nSCK\nTX\n13\nNC\nNC\n5\nMISO\nSCL\n12\nSCL\nI2C Clock\nNC\n6\nMOSI\nSDA\n11\nSDA\nI2C Data\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\nLogic Level Voltage Selection 3V3/5V: Left position 3V3, Right position 5V\nJP2-JP3\nADDR SEL\nLeft\nI2C Address Selection 0/1/SCL/SDA: Left position 0, Right position 1, Upper position SCL, Lower position SDA"}]},{"type":"heading","level":3,"children":[{"type":"text","value":"DAC 10 CLICK ELECTRICAL SPECIFICATIONS"}]},{"type":"paragraph","children":[{"type":"text","value":"Description\nMin\nTyp\nMax\nUnit\nSupply Voltage\n3.3\n-\n5\nV\nOutput Voltage Range\n0\n-\n5.5\nV\nResolution\n-\n10\n-\nbits\nOperating Temperature Range\n-40\n+25\n+125\n°C"}]},{"type":"heading","level":3,"children":[{"type":"text","value":" "}]}]} - summary:The DAC 10 Click Board™ is a compact add-on board that contains a fully-featured, highly accurate digital-to-analogue converter. This board features the DAC53401, a 10-bit voltage-output smart digital-to-analogue converter from Texas Instruments. This device consumes extremely low power and has a nonvolatile memory (NVM), an internal reference, and an I2C serial interface with a configurable slave address. It operates with either an internal reference or the power supply as a reference and provides full-scale output from 1.8V to 5.5V.
The DAC10 Click Board™ is a compact add-on board that contains a high-performance data converter that represents an excellent choice for applications such as LED and general-purpose bias point generation, power supply control, programmable reference, and more.