MAX5520/MAX5521 19-3065 Rev 0 1/04 +1.8V to +5.5V, Ultra-Low-Power, 10-Bit, Voltage-Output DACs General Description Features The MAX5520/MAX5521 are single, 10-bit, ultra-low- Single +1.8V to +5.5V Supply power, voltage-output, digital-to-analog converters Ultra-Low 6A Supply Current (DACs) offering Rail-to-Rail buffered voltage outputs. The DACs operate from a 1.8V to 5.5V supply and con- Shutdown Mode Reduces Supply Current to sume less than 6A, making them desirable for low- 0.18A (max) power and low-voltage applications. A shutdown mode Small 4mm x 4mm x 0.8mm Thin QFN Package reduces overall current, including the reference input current, to just 0.18A. The MAX5520/MAX5521 use a Flexible Force-Sense-Configured Rail-to-Rail 3-wire serial interface that is compatible with SPI, Output Buffers QSPI, and MICROWIRE. Internal Reference Sources 8mA of Current At power-up, the MAX5520/MAX5521 outputs are dri- (MAX5521) ven to zero scale, providing additional safety for appli- cations that drive valves or for other transducers that Fast 16MHz 3-Wire SPI-/QSPI-/MICROWIRE- must be off during power-up. The zero-scale outputs Compatible Serial Interface enable glitch-free power-up. TTL- and CMOS-Compatible Digital Inputs with The MAX5520 accepts an external reference input. The Hysteresis MAX5521 contains an internal reference and provides an external reference output. Both devices have force- Glitch-Free Outputs During Power-Up sense-configured output buffers. The MAX5520/MAX5521 are available in a 4mm x 4mm x 0.8mm, 12-pin, thin QFN package and are guaranteed Ordering Information over the extended -40C to +85C temperature range. PART TEMP RANGE PIN-PACKAGE For 12-bit compatible devices, refer to the MAX5530/ MAX5520ETC -40C to +85C 12 Thin QFN-EP* MAX5531 data sheet. For 8-bit compatible devices, MAX5521ETC -40C to +85C 12 Thin QFN-EP* refer to the MAX5510/MAX5511 data sheet. *EP = Exposed paddle (internally connected to GND). Applications Portable Battery-Powered Devices Instrumentation Pin Configuration Automatic Trimming and Calibration in Factory or Field TOP VIEW Programmable Voltage and Current Sources FB N.C. OUT Industrial Process Control and Remote 12 11 10 Industrial Devices Remote Data Conversion and Monitoring CS 1 9 GND Chemical Sensor Cell Bias for Gas Monitors SCLK 2 8 V Programmable Liquid Crystal Display (LCD) Bias DD MAX5520 MAX5521 DIN 3 7 N.C. Selector Guide PART REFERENCE TOP MARK 45 6 MAX5520ETC External AACQ REFIN (MAX5520) N.C. N.C. REFOUT(MAX5521) MAX5521ETC Internal AACR THIN QFN Rail-to-Rail is a registered trademark of Nippon Motorola, Inc. SPI and QSPI are trademarks of Motorola, Inc. MICROWIRE is a trademark of National Semiconductor Corp Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com.+1.8V to +5.5V, Ultra-Low-Power, 10-Bit, Voltage-Output DACs ABSOLUTE MAXIMUM RATINGS V to GND..............................................................-0.3V to +6V Operating Temperature Range ...........................-40C to +85C DD OUT to GND ...............................................-0.3V to (V + 0.3V) Storage Temperature Range .............................-65C to +150C DD FB to GND ..................................................-0.3V to (V + 0.3V) Junction Temperature..................................................... +150C DD SCLK, DIN, CS to GND ..............................-0.3V to (V + 0.3V) Lead Temperature (soldering, 10s) .................................+300C DD REFIN, REFOUT to GND ............................-0.3V to (V + 0.3V) DD Continuous Power Dissipation (T = +70C) A Thin QFN (derate 16.9mW/C above +70C).............1349mW 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. ELECTRICAL CHARACTERISTICS (V = +1.8V to +5.5V, OUT unloaded, T = T to T , unless otherwise noted. Typical values are at T = +25C.) DD A MIN MAX A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS STATIC ACCURACY (MAX5520 EXTERNAL REFERENCE) Resolution N 10 Bits V = 5V, V = 4.096V 1 4 DD REF Integral Nonlinearity (Note 1) INL LSB V = 1.8V, V = 1.024V 1 4 DD REF Guaranteed monotonic, 0.2 1 V = 5V, V = 4.096V DD REF Differential Nonlinearity (Note 1) DNL LSB Guaranteed monotonic, 0.2 1 V = 1.8V, V = 1.024V DD REF V = 5V, V = 4.096V 1 20 DD REF Offset Error (Note 2) V mV OS V = 1.8V, V = 1.024V 1 20 DD REF Offset-Error Temperature Drift 2 V/C V = 5V, V = 4.096V 1 2 DD REF Gain Error (Note 3) GE LSB V = 1.8V, V = 1.024V 1 2 DD REF Gain-Error Temperature 4 ppm/C Coefficient Power-Supply Rejection Ratio PSRR 1.8V V 5.5V 85 dB DD STATIC ACCURACY (MAX5521 INTERNAL REFERENCE) Resolution N 10 Bits V = 5V, V = 3.9V 1 4 DD REF Integral Nonlinearity (Note 1) INL LSB V = 1.8V, V = 1.2V 1 4 DD REF Guaranteed monotonic, 0.2 1 V = 5V, V = 3.9V DD REF Differential Nonlinearity (Note 1) DNL LSB Guaranteed monotonic, 0.2 1 V = 1.8V, V = 1.2V DD REF V = 5V, V = 3.9V 1 20 DD REF Offset Error (Note 2) V mV OS V = 1.8V, V = 1.2V 1 20 DD REF Offset-Error Temperature Drift 2 V/C V = 5V, V = 3.9V 1 2 DD REF Gain Error (Note 3) GE LSB V = 1.8V, V = 1.2V 1 2 DD REF Gain-Error Temperature 4 ppm/C Coefficient 2 MAX5520/MAX5521