MAX5186BEEI+

Digital To Analog Converters Overview

The MAX5186BEEI+ is a dual, 8-bit digital-to-analog converter operating from a single 2.7V to 3.3V supply. It features simultaneous output updates at clock speeds up to 40MHz with a typical settling time of 25ns. The device provides fully differential current outputs and includes an internal 1.2V bandgap reference. Key performance metrics include a spurious-free dynamic range of 70dB at 2.2MHz output frequency, ±0.5% FSR gain mismatch, and ±0.15° phase mismatch between channels.

Digital To Analog Converters Feature Summary

• Dual-channel architecture with simultaneous update capability for synchronized signal generation
• Integrated low-noise 1.2V bandgap reference with external override option
• Low-power operation featuring standby mode and complete shutdown with 1µA maximum current draw
• Fully differential outputs designed to minimize unwanted spurious signal components

Digital To Analog Converters Applications

• Signal reconstruction of I and Q transmit signals in communications systems
• Digital signal processing requiring high-speed analog conversion
• Arbitrary waveform generation applications
• Imaging systems requiring precise analog signal control

Digital To Analog Converters Procurement Notes

Verify the specific suffix BEEI confirms the -40°C to +85°C temperature range and 28-pin QSOP package configuration. Confirm RoHS compliance status as indicated by the plus sign in the part number. Ensure the design supports the required 2.7V to 3.3V single-supply voltage domain for both analog and digital sections.

Digital To Analog Converters Selection Notes

Select this component when dual-channel synchronization is critical for I/Q modulation or balanced signal paths. The MAX5189 variant offers integrated on-chip resistors for direct voltage output, whereas the MAX5186 requires external load resistors for voltage conversion. Consider the 40MHz clock limit and 8-bit resolution against system bandwidth requirements.

Digital To Analog Converters Part Context

This device belongs to the MAX518x family of high-speed DACs. Higher resolution variants within the same series include the 10-bit MAX5180 and MAX5183 models. The MAX5186 specifically targets current-output applications, while the MAX5189 integrates precision resistors for voltage-mode operation, sharing identical pinouts and electrical specifications.

Digital To Analog Converters Replacement Considerations

The MAX5189 serves as a functional substitute if voltage output is preferred over current output, utilizing identical pin configurations and electrical characteristics. For higher resolution needs, the MAX5180 and MAX5183 provide 10-bit performance within the same package and interface constraints.

Digital To Analog Converters FAQ

How does the MAX5186 handle data updates for its two channels?

The device uses separate input and DAC registers for each channel. Data is written simultaneously; on the falling edge of the clock, DAC2 data is preloaded, and on the rising edge, both DAC1 and DAC2 registers are updated concurrently.

What is the mechanism for entering low-power modes?

Standby mode is entered by setting PD and DACEN low, reducing power while keeping the reference active. Shutdown mode is activated by setting PD high, disabling all internal circuits and reducing supply current to a maximum of 1µA.

Can the internal reference be disabled?

Yes, connecting the REN pin to DVDD disables the internal 1.2V bandgap reference, allowing an external stable reference voltage to be applied to the REFO pin to set the full-scale output.