This version (02 Oct 2019 13:38) was approved by Michael Hennerich.The Previously approved version (22 Jul 2013 10:48) is available.
Table of Contents
Supported Devices
Evaluation Boards
Overview
The AD5541A, AD5600 are single, 16-bit, serial input, unbuffered voltage output digital-to-analog converter (DAC) that operate from a single 2.7 V to 5.5 V supply.
The DAC output range extends from 0 V to VREF and is guaranteed monotonic, providing ±1 LSB INL accuracy at 16 bits without adjustment over the full specified temperature range of −40°C to +125°C. The AD5541A is available in a 3 mm × 3 mm, 10-lead LFCSP and 10-lead MSOP. The AD5541A-1 is available in a 3 mm × 3 mm, 8-lead LFCSP.
Offering unbuffered outputs, the AD5541A, AD5600 achieve a 1 μs settling time with low power consumption and low offset errors. Providing low noise performance of 11.8 nV/√Hz and low glitch, the AD5541A, AD5600 are suitable for deployment across multiple end systems.
The AD5541A, AD5600 use a versatile 3-wire interface that is compatible with a 50 MHz SPI, QSPI™, MICROWIRE™, and DSP interface standards.
Applications
- Automatic test equipment
- Precision Source-measure Instruments
- Data Acquisition Systems
- Medical Instrumentation
- Aerospace Instrumentation
- Communications Infrastructure equipment
- Industrial Control
The goal of this project (Microcontroller No-OS) is to be able to provide reference projects for lower end processors, which can't run Linux, or aren't running a specific operating system, to help those customers using microcontrollers with ADI parts. Here you can find a generic driver which can be used as a base for any microcontroller platform and also specific drivers for different microcontroller platforms.
Driver Description
The driver contains two parts:
- The driver for the AD5541A part, which may be used, without modifications, with any microcontroller.
- The Communication Driver, where the specific communication functions for the desired type of processor and communication protocol have to be implemented. This driver implements the communication with the device and hides the actual details of the communication protocol to the ADI driver.
The Communication Driver has a standard interface, so the AD5541A driver can be used exactly as it is provided.
There are three functions which are called by the AD5541A driver:
- SPI_Init() – initializes the communication peripheral.
- SPI_Write() – writes data to the device.
- SPI_Read() – reads data from the device.
SPI driver architecture
The following functions are implemented in this version of AD5541A driver:
| Function | Description |
|---|---|
| char AD5541A_Init(void) | Initializes the communication peripheral and configures LDAC pin. |
| void AD5541A_SetRegisterValue(unsigned short registerValue) | Sends to DAC register through SPI the 16-bit data-word. |
| float AD5541A_SetVoltage(float outVoltage, float vRef) | Sets the output voltage. |
resources/tools-software/uc-drivers/ad5541a.txt · Last modified: 22 Aug 2018 15:07 by Stefan Popa