MAX538ACPA

Digital To Analog Converters Overview

The MAX538ACPA+ is a low-power, voltage-output, 12-bit digital-to-analog converter (DAC) from Analog Devices/Maxim Integrated. It operates from a single +5V supply and draws only 140µA of supply current. The device features a buffered voltage output with a fixed gain of +1. Key electrical specifications include a settling time of 25µs to ±1/2 LSB, integral nonlinearity (INL) of ±1 LSB maximum, and differential nonlinearity (DNL) of ±1 LSB maximum. It utilizes a 3-wire 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

• Low power consumption with 140µA supply current
• Buffered voltage output with fixed unity gain
• Guaranteed monotonic operation over temperature
• Serial data output for daisy-chaining applications

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 ordering suffix 'CPA+' corresponds to the 8-pin PDIP package and commercial temperature grade when sourcing. Confirm RoHS compliance status as indicated in the manufacturer's documentation. Ensure the supplier provides valid traceability for the Analog Devices/Maxim Integrated brand. Cross-reference the Mouser part number 700-MAX538ACPA for availability details. Validate that the component meets the required environmental specifications for the intended deployment environment.

Digital To Analog Converters Selection Notes

Select the MAX538ACPA+ when a single-supply, low-power 12-bit DAC with a buffered voltage output is required. This model is suitable for designs needing a fixed gain of +1 without external feedback components. Consider this part for space-constrained applications utilizing 8-pin DIP packages. Verify that the 140µA current draw aligns with battery life requirements. Ensure the system interface supports the 3-wire serial protocol for data input.

Digital To Analog Converters Part Context

The MAX538 is part of the MAX531/MAX538/MAX539 family of low-power, voltage-output, serial 12-bit DACs. Unlike the MAX531, which offers configurable gain and internal reference options, the MAX538 features a fixed unity-gain buffer and requires an external reference. It shares the same pinout and serial interface characteristics as the MAX539, though the MAX539 operates at a gain of +2. This family is designed for portable and battery-operated systems requiring precise analog control.

Digital To Analog Converters Replacement Considerations

The MAX539ACPA+ serves as a direct functional substitute within the same package, offering identical specifications except for a fixed gain of +2 instead of +1. Designers must verify if the application can accommodate the doubled output voltage range. No other direct pin-compatible replacements are documented in the provided datasheet.