MAX5803AUB+

Digital To Analog Converters Overview

The MAX5803AUB+ is an ultra-small, single-channel, 8-bit buffered output voltage digital-to-analog converter (DAC) manufactured by Analog Devices / Maxim Integrated. It features a wide supply voltage range of 2.7V to 5.5V and extremely low power consumption of less than 1mW. The device includes selectable internal references of 2.048V, 2.500V, or 4.096V, alongside a precision external reference input for rail-to-rail operation. Communication is handled via a fast 400kHz I2C-compatible, 2-wire serial interface with readback capability. Key performance metrics include a settling time of 2.8µs, a typical offset error of ±0.5mV, and a maximum integral nonlinearity of ±0.25 LSB. The component operates over an extended temperature range from -40°C to +125°C.

Digital To Analog Converters Feature Summary

• Integrated buffered voltage output capable of driving loads directly
• Software-selectable internal precision voltage references
• User-configurable asynchronous auxiliary input for control flexibility
• Power-on-reset circuitry initializes DAC outputs to zero scale

Digital To Analog Converters Applications

• Programmable Voltage and Current Sources
• Gain and Offset Adjustment
• Automatic Tuning and Optical Control
• Process Control and Servo Loops
• Portable Instrumentation

Digital To Analog Converters Procurement Notes

Verify the specific suffix 'AUB+' against official documentation to confirm package type and lead-free status. Confirm availability as distribution channels may list this part as obsolete or end-of-life. Ensure the selected variant matches the required resolution and operating temperature specifications before procurement.

Digital To Analog Converters Selection Notes

Select the MAX5803AUB+ when an 8-bit resolution is sufficient for the application requirements. Consider the MAX5804 or MAX5805 if higher resolution (10-bit or 12-bit) is necessary. Evaluate the need for internal versus external references based on system noise and accuracy constraints. Verify that the I2C address configuration meets the bus topology requirements.

Digital To Analog Converters Part Context

This component belongs to the MAX5803/MAX5804/MAX5805 family of ultra-small, single-channel DACs. These devices share identical pinouts and functional architectures, differing primarily in resolution. The MAX5803 specifically provides 8-bit accuracy, making it suitable for cost-sensitive applications where lower resolution is acceptable.

Digital To Analog Converters Replacement Considerations

Direct replacements within the same series include the MAX5804 and MAX5805, which offer 10-bit and 12-bit resolutions respectively while maintaining the same package and interface.