MAX533

+2.7V to +3.6V Single-Supply Operation
Ultra-Low Supply Current:
   0.7mA while Operating
   1A in Shutdown Mode
Ultra-Small 16-Pin QSOP Package
Ground to VDD Reference Input Range
Output Buffer Amplifiers Swing Rail to Rail
10MHz Serial Interface, Compatible with SPI, QSPI
   (CPOL = CPHA = 0 or CPOL = CPHA = 1), and Microwire
Double-Buffered Registers for Synchronous Updating
Serial Data Output for Daisy Chaining
Power-On Reset Clears Serial Interface and Sets
   All Registers to Zero
Software Shutdown
Software-Programmable Logic Output
Asynchronous Hardware Clear Resets All Internal
   Registers to Zero

Digital Gain and Offset Adjustments Programmable Attenuators
Programmable Current Sources Portable Instruments

VDD to DGND .......................................................-0.3V, +6V
VDD to AGND.........................................................-0.3V, +6V
Digital Input Voltage to DGND ..............................-0.3V, +6V
Digital Output Voltage to DGND................0.3V, (VDD + 0.3V)
AGND to DGND.............................................................±0.3V
REF...........................................................-0.3V, (VDD + 0.3V)
OUT_ ......................................................................0.3V, VDD
Maximum Current into Any Pin.......................................50mA
Continuous Power Dissipation (TA = +70°C)
Plastic DIP (derate 10.53mW/°C above +70°C) .......842mW
QSOP (derate 8.3mW/°C above +70°C)....................667mW
CERDIP (derate 10.00mW/°C above +70°C).............800mW
Operating Temperature Ranges
MAX533 _ C_ E ................................................0°C to +70°C
MAX533 _ E_ E .............................................-40°C to +85°C
MAX533 _ MJE ..............................................55°C to +125°C
Storage Temperature Range ......................-65°C to +150°C
Lead Temperature (soldering, 10sec) .........................+300°C

The MAX533 serial-input, voltage-output, 8-bit quad digital-to-analog converter (DAC) operates from a single +2.7V to +3.6V supply. Internal precision buffers swing rail to rail, and the reference input range includes both ground and the positive rail. The MAX533 features a 1A shutdown mode.

The MAX533's interface is double buffered: a 12-bit input shift register is followed by four 8-bit buffer registers and four 8-bit DAC registers. The 12-bit serial word consists of eight data bits and four control bits (for DAC selection and special programming commands). Both the input and DAC registers can be updated independently or simultaneously with a single software command.
Two additional asynchronous control pins, LDAC and CLR , provide simultaneous updating or clearing of the input and DAC registers

The MAX533's  interface is compatible with SPI™, QSPI™ (CPOL = CPHA = 0 or CPOL = CPHA = 1), and Microwire™. A buffered data output allows daisy chaining of serial devices.

In addition to 16-pin DIP and CERDIP packages, the MAX533 is available in a 16-pin QSOP that occupies the same area as an 8-pin SO.