MAX539ACPA

Digital To Analog Converters Overview

The MAX539ACPA is a 12-bit, low-power, voltage-output digital-to-analog converter (DAC) manufactured by Analog Devices Inc./Maxim Integrated. It operates from a single +5V power supply and draws only 140µA of supply current. The device features an R-2R architecture with a buffered voltage output configured for a gain of +2. Key electrical specifications include a maximum integral nonlinearity (INL) of ±0.5 LSB and a differential nonlinearity (DNL) of ±1 LSB. The typical settling time is 25µs to 0.01% of the final value. It utilizes a serial interface compatible with SPI, QSPI, and Microwire standards. The component is housed in an 8-pin PDIP package and supports an operating temperature range of 0°C to +70°C.

Digital To Analog Converters Feature Summary

• Operates from a single +5V supply with low power consumption of 140µA
• Provides a buffered voltage output with a fixed internal gain of +2
• Features guaranteed monotonicity over the specified temperature range
• Includes a serial data output pin (DOUT) to support daisy-chaining multiple devices

Digital To Analog Converters Applications

• Battery-powered test instruments
• Digital offset and gain adjustment circuits
• Battery-operated or remote industrial controls
• Machine and motion control devices
• Cellular telephones

Digital To Analog Converters Procurement Notes

Verify the specific suffix 'C' indicates the commercial temperature range of 0°C to +70°C, distinct from the extended range 'E' variant. Confirm the 'P' suffix corresponds to the Plastic DIP package type. Check for RoHS compliance status as older Maxim parts may not meet current environmental regulations. Ensure the source document matches the exact part number to avoid confusion with the MAX538 or MAX531 variants which have different buffer gains or pin counts.

Digital To Analog Converters Selection Notes

Select this component when a 12-bit resolution with a gain of +2 is required for single-supply applications. It is suitable for designs needing low power consumption and serial interface compatibility. Consider the MAX531 if an internal reference or configurable gain (+1 or +2) is needed, or the MAX538 if a unity-gain buffer is preferred. Verify that the 25µs settling time meets the system's update rate requirements.

Digital To Analog Converters Part Context

The MAX539ACPA belongs to the MAX531/MAX538/MAX539 family of low-power, voltage-output DACs. While sharing similar architectures and interfaces, the MAX539 is specifically distinguished by its internal buffer gain of +2, whereas the MAX538 has a gain of +1. The MAX531 offers more flexibility with an internal reference and configurable gain but requires additional pins. All parts in this series are trimmed for offset, gain, and linearity.

Digital To Analog Converters Replacement Considerations

Public confirmed substitute part numbers: MAX539AEPA (Extended Temperature Range), MAX539ACSA+ (SOIC Package).

Digital To Analog Converters FAQ

What is the internal buffer gain configuration for the MAX539?

The MAX539 has an internal buffer amplifier configured for a fixed gain of +2.

How does the MAX539 handle daisy-chaining?

It includes a DOUT pin that outputs the serial data delayed by 16 clock cycles plus one clock width, allowing multiple devices to be cascaded.

What is the minimum external capacitor required for the reference input?

A minimum of 3.3µF is required for stability, though 33µF is recommended for lower noise performance.