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MAX5385：Low-Cost, Low-Power, 8-Bit DACs with 3-Wire Serial Interface in SOT23

First 3-Wire SOT DAC that Includes On-Chip Reference

The MAX5383/MAX5384/MAX5385 low-cost, 8-bit digital-to-analog converters (DACs) in miniature 6-pin SOT23 packages have a simple 3-wire, SPI™/QSPI™/MICROWIRE™-compatible serial interface that operates up to 10MHz. The MAX5383 has an internal +2V reference and operates from a +2.7V to +3.6V supply. The MAX5384 has an internal +4V reference and operates from a +4.5V to +5.5V supply. The MAX5385 operates over the full +2.7V to +5.5V supply range and has an internal reference equal to 0.9 x VDD. The MAX5383/MAX5384/MAX5385 require an extremely low supply current of only 150µA (typ) and provide a buffered voltage output. These devices power up at zero code and remain there until a new code is written to the DAC registers. This provides additional safety for applications that drive valves or other transducers that need to be off on power-up. The MAX5383/MAX5384/MAX5385 include a 1µA, low-power shutdown mode that features software-selectable output loads of 1kΩ, 100kΩ, or 1MΩ to ground.

Key Features 8-Bit Resolution in a Miniature 6-Pin SOT23 Package Wide +2.7V to +5.5V Supply Range (MAX5385) < 1µA Shutdown Mode Software-Selectable Output Resistance During Shutdown Buffered Output Drives Resistive Loads Low-Glitch Power-On Reset to Zero DAC Output 3-Wire SPI/QSPI/MICROWIRE-Compatible Interface < ±5% Full-Scale Error (MAX5385) < ±1 LSB max INL/DNL Low 230µA (max) Supply Current

MAX5383, MAX5384, MAX5385: Typical Operating Circuit Applications/Uses Automatic Gain Control Automatic Offset Adjustment Automatic Tuning (VCO) Power-Amp Bias Control Programmable Threshold Levels

DataSheet

Parametrics

Quality and Environmental Data

• MAX5385.pdf

Related Products

• MAX5382：Low-Cost, Low-Power, 8-Bit DACs with 2-Wire Serial Interface in SOT23
• MAX5380：Low-Cost, Low-Power, 8-Bit DACs with 2-Wire Serial Interface in SOT23
• MAX5381：Low-Cost, Low-Power, 8-Bit DACs with 2-Wire Serial Interface in SOT23
• MAX5222：Dual, 8-Bit, Voltage-Output, Serial DAC in 8-Pin SOT23

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