The MAX551/MAX552 are 12-bit, current-output, 4-quad-rant 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.
Key Features
Applications/Uses
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
Notes: *This pricing is BUDGETARY, for comparing similar parts. Prices are in
U.S. dollars and subject to change. Quantity pricing may vary
substantially and international prices may differ due to local
duties, taxes, fees, and exchange rates. For volume-specific prices
and delivery, please see the price and availability page
or contact an authorized distributor.
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