MAX528CWG+

The MAX528CWG+ is an octal, 8bit, serial digital to analogue converter (DAC) in 24 pin WSOIC package. This monolithic device combines DAC, 8 output buffers and serial interface logic. It operates from single supply up to 15V or from split supplies up to 20V including +5V/-15V, +12V/-5V and +15V/-5V. A shutdown pin reduces current consumption to under 50µA which retains all internal DAC data. Three output modes are serially programmable for each pair of 8 analogue outputs. An unbuffered mode connects internal R-2R DAC network directly to output pin, reducing power consumption & avoiding buffer's DC errors. A full buffered mode inserts buffer between R-2R network and output which provides +5mA/-2mA output drive. Half buffered output mode is similar but uses less power while still providing up to 15mA of output drive in unipolar output configuration. The MAX528 is used in digital calibration & gain and offset adjustment, microcontroller analogue outputs & multiply trim pot replacement.

• Supply voltage range is 10.8V to 16.5V (unbuffered and full buffered mode)
• Operating temperature range from 0°C to 70°C
• Supports 3-wire serial interface
• Eight buffered non inverting outputs
• Buffer disable control and low power shutdown mode
• Two pairs of differential reference inputs
• Full scale error of ±1/2LSB (unbuffered mode) and gain error of -0.2% (full buffered mode)
• Stable driving output capacitance loads
• Relative accuracy of ±0.3LSB (unbuffered and full buffered mode)
• DNL of ±0.3LSB (unbuffered and full buffered mode)

Ứng Dụng

Signal Processing

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