MAX5722AUA+

数模转换器, 12 bit, SPI, 2.7V 至 5.5V, µMAX, 8 引脚

The from Products is a 12bit, low power, dual, voltage output DAC with serial interface in 8 pin µMAX package. This dual buffered DAC consumes 112µA supply current, DAC outputs employ on-chip precision output amplifiers that swing Rail to Rail® and the reference input accepts a voltage range from 0 to VDD. In power-down, the reference input is high impedance, further reducing system"s total power consumption. The on-chip power-on reset POR circuit resets DAC outputs to zero and loads output with a 100Kohm resistor to ground. This provides additional safety for applications that drive valves or other transducers that need to be off on power-up. Device is used in automatic tuning, gain and offset adjustment, power amplifier control, process control I/O boards, battery-powered instruments and VCO control.

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Supply voltage range is 2.7V to 5.5V

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Operating temperature range from -40°C to +125°C

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Ultra low power consumption of 135µA at VDD = +5.5V

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0.3µA power down current

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Safe power-up reset to zero volts at DAC output

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Three software selectable power-down impedances 100Kohm, 1Kohm and Hi-Z

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Fast 20MHz, 3 wire SPI, QSPI and MICROWIRE compatible serial interface

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Schmitt-triggered logic inputs for direct interfacing to opt couplers

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Maximum INL is ±16LSB and maximum DNL is ±1LSB at monotonic

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Automatic Tuning; Battery-Powered Instruments; Gain and Offset Adjustment; Power Amplifier Control; Process-Control I/O Boards; VCO Control