MAX5251BCPP+

Digital To Analog Converters Overview

The MAX5251BCPP+ is a quad, 10-bit voltage-output digital-to-analog converter (DAC) with integrated precision output amplifiers. It operates on a single +3.0V to +3.6V supply with a typical normal-mode current of 0.8mA and 3µA in shutdown. The device features a 3-wire serial interface compatible with SPI/QSPI and MICROWIRE protocols. Key electrical specifications include a maximum settling time of 12µs, an integral nonlinearity of ±1 LSB, and a power-on reset that clears all registers and DAC outputs to zero.

Digital To Analog Converters Feature Summary

• Integrates four 10-bit DACs with individually accessible amplifier negative inputs for flexible gain configurations.
• Supports simultaneous or independent control of all channels via a double-buffered 3-wire serial interface.
• Includes software shutdown, hardware shutdown lockout, and an active-low reset function.
• Features a user-programmable logic output and a serial-data output for data verification.

Digital To Analog Converters Applications

• Digital offset and gain adjustment circuits
• Microprocessor-controlled industrial systems
• Industrial process control instrumentation
• Automatic test equipment
• Remote industrial control interfaces

Digital To Analog Converters Procurement Notes

Verify the specific suffix 'CPP+' corresponds to the 20-pin Plastic DIP package and the commercial temperature range when sourcing. Confirm RoHS compliance status through official manufacturer documentation or authorized distributors. Ensure the ordering code matches the required pin configuration and thermal grade for the target application environment.

Digital To Analog Converters Selection Notes

Select this component for applications requiring multiple low-power voltage outputs from a single IC. The availability of feedback pins allows for external signal conditioning and remote sensing. Consider the MAX5253 if higher 12-bit resolution is required while maintaining pin compatibility. Verify that the serial interface timing meets the microcontroller's clock requirements.

Digital To Analog Converters Part Context

This part belongs to the MAX5251 family of quad DACs manufactured by Analog Devices Inc./Maxim Integrated. The family includes variants with different accuracy grades (AC/BC), temperature ranges, and packages. The BC grade specifies ±1 LSB integral nonlinearity, distinguishing it from the higher-precision AC grade which offers ±1/2 LSB INL.

Digital To Analog Converters Replacement Considerations

The MAX5251ACPP+ serves as a higher-accuracy alternative within the same package and pinout. For applications requiring increased resolution, the MAX5253 provides a 12-bit upgrade path. Verify that any substitute maintains the +3V single-supply operation and serial interface compatibility.

Digital To Analog Converters FAQ

How does the MAX5251 handle register updates?

The device utilizes double-buffered input registers followed by DAC registers. Data can be loaded into input registers without affecting outputs, or simultaneously updated to the DAC registers via specific serial commands.

What is the function of the PDL pin?

The Power-Down Lockout (PDL) pin disables the software shutdown feature when held low. Transitioning PDL from high to low while in shutdown mode wakes up the device to its previous state.

Can the reference inputs accept AC signals?

Yes, the REFAB and REFCD inputs support multiplying-mode performance, allowing AC signal components within the specified voltage range to modulate the DAC output.