MAX5234/MAX5235 19-2330 Rev 0 1/02 Single-Supply 3V/5V, Voltage-Output, Dual, Precision 12-Bit DACs General Description Features The MAX5234/MAX5235 precision, dual-output, 12-bit Guaranteed 1/2LSB INL (max) digital-to-analog converters (DACs) consume only 360A Low Supply Current from a single 5V (MAX5235) or 325A from a single 3V 325A (Normal Operation) (MAX5234) supply. These devices feature output buffers that swing Rail-to-Rail . The internal gain amplifiers maxi- 0.4A (Full Power-Down Mode) mize the dynamic range of the DAC output. Single-Supply Operation The MAX5234/MAX5235 feature a 13.5MHz 3-wire seri- 3V (MAX5234) al interface compatible with SPI, QSPI, and 5V (MAX5235) MICROWIRE. Each DAC input is organized as an Space-Saving 10-Pin MAX Package input register followed by a DAC register. A 16-bit shift register loads data into the input registers. Input regis- Output Buffers Swing Rail-to-Rail ters update the DAC registers independently or simulta- Power-On Reset Clears Registers and DACs neously. In addition, programmable control bits allow to Zero power-down with 1k or 200k internal loads. The MAX5234/MAX5235 are fully specified over the Programmable Shutdown Modes with 1k or extended industrial temperature range (-40C to +85C) 200k Internal Loads and are available in space-saving 10-pin MAX packages. Resets to Zero 13.5MHz SPI/QSPI/MICROWIRE-Compatible, Applications 3-Wire Serial Interface Industrial Process Controls Buffered Output Drives 5k 100pF Automatic Test Equipment Digital Offset and Gain Adjustment Ordering Information Motion Control INL P-Controlled Systems TEMP PIN- PART RANGE PACKAGE (LSB) -40C to +85C 10 MAX 0.5 MAX5234AEUB MAX5234BEUB -40C to +85C 10 MAX 1 MAX5235AEUB -40C to +85C 10 MAX 0.5 MAX5235BEUB -40C to +85C 10 MAX 1 Pin Configuration TOP VIEW OUTA 1 10 OUTB REFA 2 9 REFB MAX5234 GND 3 8 V DD MAX5235 LDAC 4 7 DIN Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd. CS 5 6 SCLK SPI/QSPI are trademarks of Motorola, Inc. MAX 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.Single-Supply 3V/5V, Voltage-Output, Dual, Precision 12-Bit DACs ABSOLUTE MAXIMUM RATINGS V to GND .............................................................-0.3V to +6V Continuous Power Dissipation (T = +70C) DD A Digital Inputs to GND ..............................................-0.3V to +6V 10-Pin MAX (derate 5.60mW/C above +70C) .........444mW REF , OUT to GND ................................-0.3V to (V + 0.3V) Operating Temperature Range ...........................-40C to +85C DD Maximum Current into Any Pin............................................50mA Storage Temperature Range .............................-65C to +150C Lead Temperature (soldering, 10s) .................................+300C 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 CHARACTERISTICSMAX5235 (V = +4.5V to +5.5V, GND = 0, V = V = +2.5V, R = 5k , C = 100pF, T = T to T , unless otherwise noted. Typical DD REFA REFB L L A MIN MAX values are at T = +25C.) A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS STATIC PERFORMANCE Resolution N 12 Bits MAX5235A (Note 1) 0.5 Integral Nonlinearity INL LSB MAX5235B (Note 1) 1 Differential Nonlinearity DNL 1 LSB Offset Error V (Note 2) 5mV OS Gain Error 3 LSB Full-Scale Voltage V Code = FFF hex, T = +25C (Note 3) 4.087 4.095 4.103 V FS A Full-Scale Temperature TCV Normalized to 4.095V 2 ppm/C FS Coefficient Offset Temperature Coefficient TCV 8 V/C OS Power-Supply Rejection PSR 4.5V V 5.5V 15 200 V DD DC Crosstalk (Note 4) 100 V REFERENCE INPUT Reference Input Range V (Note 5) 0.25 2.60 V REF Reference Input Resistance R Minimum with code 555 hex and AAA hex 28 37 k REF Reference Current in Shutdown I 1A REF MULTIPLYING MODE PERFORMANCE Reference -3dB Bandwidth, Input code = FFF hex, V = 0.5V + REF P-P 350 kHz Slew-Rate Limited 1.5V DC Input code = 000 hex, V = 3.6V + REF P-P Reference Feedthrough -80 dB 1.8V , f = 1kHz DC Signal-to-Noise plus Distortion Input code = FFF hex, V = 2V + REF P-P SINAD 79 dB Ratio 1.5V , f = 10kHz DC 2 MAX5234/MAX5235