Features and Benefits
- Single-Supply Operation:
- +4.5V to +5.25V (MAX551)
- +2.7V to +3.6V (MAX552)
- 12.5MHz 3-Wire Serial Interface
- SPI/QSPI and MICROWIRE Compatible
- Power-On Reset Clears DAC Output to Zero
- Asynchronous Clear Input Clears DAC Output to Zero
- Voltage Mode or Bipolar Mode Operation with a Single Power Supply
- Schmitt-Trigger Digital Inputs for Direct Optocoupler Interface
- 0.4µA Supply Current
- 10-Pin µMAX Package
The MAX551/MAX552 are 12-bit, current-output, 4-quadrant multiplying digital-to-analog converters (DACs). These devices are capable of providing unipolar or bipolar outputs when operating from either a single +5V (MAX551) or +3V (MAX552) power supply. An internal power-on-reset circuit clears all DAC registers on power-up, setting the DAC output voltage to 0V.
The SPI/QSPI and MICROWIRE-compatible 3-wire serial interface saves board space and reduces power dissipation compared with parallel-interface devices. The MAX551/MAX552 feature double-buffered interface logic with a 12-bit input register and a 12-bit DAC register. Data in the DAC register sets the DAC output voltage. Data is loaded into the input register through the serial interface. The active-low LOAD input transfers data from the input register to the DAC register, updating the DAC output voltage. The MAX551/MAX552 are available in an 8-pin DIP package or a space-saving 10-pin µMAX package. The µMAX package provides an asynchronous clear (CLR-bar) input that clears all DAC registers when pulled to GND, setting the output voltage to 0V.
- µP-Controlled Systems
- Automatic Calibration
- Digitally Controlled Filters
- Gain Adjustment
- Motion-Controlled Systems
- Process-Control I/O Boards
- Programmable Amplifiers/Attenuators
- Transducer Drivers
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Documentation & Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
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