MAX509BEPP+

Digital To Analog Converters Overview

The MAX509BEPP+ is a quad, serial-input, 8-bit voltage-output digital-to-analog converter (DAC) housed in a 20-pin DIP package. It operates with a single +5V or dual ±5V supply and features internal precision buffers that swing rail-to-rail. The device includes four separate reference inputs, allowing independent full-scale range setting for each DAC. It utilizes a double-buffered serial interface compatible with SPI, QSPI, and Microwire protocols, supporting clock frequencies up to 10MHz. Key electrical characteristics include a Total Unadjusted Error (TUE) of ±1.5 LSB, a settling time of 6µs, and power-on reset functionality.

Digital To Analog Converters Feature Summary

• Quad 8-bit resolution with rail-to-rail buffered outputs
• Independent reference inputs for individual channel scaling
• Double-buffered registers enabling synchronous updating
• Serial interface compatible with SPI, QSPI, and Microwire

Digital To Analog Converters Applications

• Programmable gain amplifiers
• Variable voltage references
• Battery simulation equipment
• Waveform generation systems

Digital To Analog Converters Procurement Notes

Verify the specific suffix 'EPP+' corresponds to the 20-pin Plastic DIP package and the commercial temperature range (0°C to +70°C). Confirm lead-free/RoHS compliance status as indicated by the '+' designation. Check current manufacturing availability as older Maxim Integrated products may be subject to discontinuation notices.

Digital To Analog Converters Selection Notes

Select the MAX509 variant over the MAX510 if independent reference control for all four channels is required, as the MAX510 shares references between pairs. Ensure the system supports the required 3-wire or 4-wire serial protocol. Verify that the load impedance and capacitance requirements fall within the specified limits for the 6µs settling time performance.

Digital To Analog Converters Part Context

This component belongs to the MAX509/MAX510 family of quad serial DACs from Analog Devices/Maxim Integrated. It is functionally identical to the MAX510 except for the reference input configuration. The BEPP+ designation indicates the B grade (±1.5 LSB TUE), E temperature range (-40°C to +85°C), PP plastic DIP package, and lead-free construction.

Digital To Analog Converters Replacement Considerations

Direct pin-compatible replacements within the same family include the MAX509ACPP+ (A grade, ±1 LSB TUE) or the MAX509BCWP+ (SOIC package). For updated alternatives, consult Analog Devices for modern quad DAC equivalents with similar serial interfaces and performance specifications.

Digital To Analog Converters FAQ

How does the MAX509 handle simultaneous updates of all DAC channels?

Simultaneous updates are achieved using the asynchronous LDAC pin or the software 'LDAC' command. When LDAC is driven low or the command is issued, the contents of the input registers are transferred to the DAC registers at the rising edge of CS.

What is the maximum serial clock frequency supported?

The serial clock (SCLK) can operate at frequencies up to 10MHz for specified performance, though the device can tolerate rates up to 12.5MHz.

Can the reference input accept AC signals?

Yes, the reference inputs accept both DC and AC signals, allowing the MAX509 to be used in multiplying applications where the output is proportional to the reference waveform.