MAX5442BCUB+

The MAX5442BCUB+ is a serial input, voltage output, 16bit digital to analogue converter (DAC) in 10 pin µMAX package. It operates from low +5V single supply. The DAC output ranges from 0 to VREF and a 16bit serial word is used to load data into DAC latch. The 25MHz, 3-wire serial interface is compatible with SPI/QSPI/MICROWIRE and can interface directly with optocouplers for applications requiring isolation. A power-on reset circuit clears DAC output to code 32768 when power is initially applied and logic low on active-low CLR asynchronously clears DAC output to code 32768 independent of serial interface. For bipolar operation, matched scaling resistors are provided in MAX5442 for use with an external precision op amp (such as MAX400) which generates ±VREF output swing. The MAX5442 is used in high resolution offset and gain adjustment, industrial process control, automated test equipment and data acquisition systems.

• Supply voltage range from 4.5V to 5.5V, operating temperature range from 0°C to 70°C
• Unbuffered DAC output result in a low supply current of 120μA and low offset error of 2LSB
• Fast settling time of 1μs
• VREF range extends to VDD
• Reference -3dB bandwidth of 1MHz, gain error of ±10LSB
• Voltage output slew rate of 15V/μs, zero code offset error of ±2LSB
• Power supply rejection (PSR) of ±1LSB at 4.5V ≤ VDD ≤ 5.5V, output settling time is 1µs
• Unbuffered voltage output directly drives 60Kohm loads
• Schmitt trigger inputs for direct optocoupler interface
• 16bit performance (±4LSB max INL and ±1LSB DNL max) over temperature without any adjustments

Applications

Signal Processing, Industrial, Automation & Process Control

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party