MAX5705BAUB+

Digital To Analog Converters Overview

The MAX5705BAUB+ is a single-channel, 12-bit buffered output voltage digital-to-analog converter (DAC) manufactured by Analog Devices Inc./Maxim Integrated. It features an internal selectable reference of 2.048V, 2.500V, or 4.096V and accepts a wide supply voltage range of 2.7V to 5.5V with power consumption under 1mW. The device utilizes a 50MHz, 3-wire SPI/QSPI/MICROWIRE/DSP-compatible serial interface. Key electrical specifications include a typical settling time of 6.3µs, ±1 LSB integral nonlinearity (INL), and ±0.2 LSB differential nonlinearity (DNL). It operates over a temperature range of -40°C to +125°C in a 10-pin µMAX package.

Digital To Analog Converters Feature Summary

• Includes a user-configurable active-low asynchronous AUX input for clearing or gating the DAC output independent of the serial interface.
• Features a dedicated active-low asynchronous LDAC pin that enables simultaneous output updates across multiple devices.
• Provides three software-selectable power-down output impedances: 1kΩ, 100kΩ, or high impedance.

Digital To Analog Converters Applications

• Programmable Voltage and Current Sources
• Gain and Offset Adjustment
• Automatic Tuning and Optical Control
• Power Amplifier Control and Biasing
• Process Control and Servo Loops

Digital To Analog Converters Procurement Notes

Verify the specific suffix 'B' against official documentation to confirm if it denotes a tighter temperature coefficient specification compared to standard variants. Ensure the ordering code matches the required package type and reference configuration before finalizing procurement orders.

Digital To Analog Converters Selection Notes

Select this component when a single-channel, high-accuracy 12-bit conversion is required in a compact footprint. The integrated buffer supports rail-to-rail operation with external references and drives loads up to 2kΩ. Consider the low power consumption and flexible I/O supply voltage range for battery-operated or space-constrained designs.

Digital To Analog Converters Part Context

This part belongs to the MAX5703/MAX5704/MAX5705 family of ultra-small, single-channel DACs. While the MAX5703 offers 8-bit resolution and the MAX5704 provides 10-bit accuracy, the MAX5705 delivers 12-bit precision without adjustments. All variants share identical pinouts, interfaces, and package options.

Digital To Analog Converters Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.

Digital To Analog Converters FAQ

How does the AUX pin function?

The AUX pin is a user-configurable active-low asynchronous input. It can be programmed via the CONFIG command to asynchronously clear (CLR) or temporarily gate (GATE) the DAC output to a user-programmable value.

What is the purpose of the LDAC pin?

The LDAC pin is a dedicated active-low asynchronous input that allows for simultaneous output updates of multiple devices connected to the same serial bus.

Can the internal reference drive external circuits?

Yes, when an internal reference is selected, the voltage is available on the REF pin and can drive an external load of up to 25kΩ.