MAX5444

VDD to GND..............................................................-0.3V to +6V
CS, SCLK, DIN, CLR to GND ......................................-0.3V to +6V
REF to GND.................................................-0.3V to (VDD + 0.3V)
OUT, INV to GND .....................................................-0.3V to VDD
RFB to INV ...................................................................-6V to +6V
RFB to GND..................................................................-6V to +6V
Maximum Current Into Any Pin ...........................................50mA
Continuous Power Dissipation (TA = +70°C)
8-Pin µMAX (derate 4.5mW/°C above +70°C)................362mW
10-Pin µMAX (derate 5.6mW/°C above +70°C) ..............444mW
Operating Temperature Ranges
MAX544 _ _CU_ ....................................................0°C to +70°C
MAX544 _ _EU_..................................................-40°C to +85°C
Storage Temperature Range ...........................-65°C to +150°C
Maximum Die Temperature...............................................+150°C
Lead Temperature (soldering, 10s) .................................+300°C


Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

The MAX5441MAX5444 are serial-input, voltage-output, 16-bit digital-to-analog converters (DACs) in tiny MAX packages, 50% smaller than comparable DACs in 8-pin SOs. They operate from low +3V (MAX5443/ MAX5444) or +5V (MAX5441/MAX5442) single supplies. They provide 16-bit performance (±2LSB INL and ±1LSB DNL) over temperature without any adjustments. Unbuffered DAC outputs result in a low supply current of 120µA and a low offset error of 2LSB.

The DAC output ranges from 0 to VREF. For bipolar operation, matched scaling resistors are provided in the MAX5442/MAX5444 for use with an external precision op amp (such as the MAX400), generating a ±VREF output swing.

A 16-bit serial word is used to load data into the DAC latch. The 25MHz, 3-wire serial interface is compatible with SPI™/QSPI™/MICROWIRE™, and can interface directly with optocouplers for applications requiring isolation. A power-on reset circuit clears the DAC output to code 0 (MAX5441/MAX5443) or code 32768 (MAX5442 MAX5444) when power is initially applied.

A logic low on CLR asynchronously clears the DAC output to code 0 (MAX5441/MAX5443) or code 32768 MAX5442/MAX5444) independent of the serial interface.

The MAX5441/MAX5443 are available in 8-pin µMAX packages. The MAX5442/MAX5444 are available in 10- pin µMAX packages.