MAX5251 19-1172 Rev 1 10/02 +3V, Quad, 10-Bit Voltage-Output DAC with Serial Interface General Description Features The +3V MAX5251 combines four low-power, voltage- Four 10-Bit DACs with Configurable output, 10-bit digital-to-analog converters (DACs) and Output Amplifiers four precision output amplifiers in a space-saving, 20- +3.0V to +3.6V Single-Supply Operation pin package. In addition to the four voltage outputs, Low Supply Current: 0.8mA Normal Operation each amplifiers negative input is also available to the 3A Shutdown Mode user. This facilitates specific gain configurations, remote Available in 20-Pin SSOP sensing, and high output drive capacity, making the Power-On Reset Clears all Registers and MAX5251 ideal for industrial-process-control applica- DACs to Zero tions. Other features include software shutdown, hard- ware shutdown lockout, an active-low reset that clears SPI/QSPI and MICROWIRE Compatible all registers and DACs to zero, a user-programmable Simultaneous or Independent Control of DACs logic output, and a serial-data output. Through 3-Wire Serial Interface Each DAC has a double-buffered input organized as an User-Programmable Digital Output input register followed by a DAC register. A 16-bit serial Schmitt-Trigger Digital Inputs for Direct word loads data into each input/DAC register. The Optocoupler Interface 3-wire serial interface is compatible with SPI/QSPI and MICROWIRE. It allows the input and DAC regis- 12-Bit Upgrade Available: MAX5253 ters to be updated independently or simultaneously with a single software command. All logic inputs are Ordering Information TTL/CMOS-logic compatible. INL PART TEMP RANGE PIN-PACKAGE Applications (LSB) Digital Offset and Gain Adjustment MAX5251ACPP 0C to +70C 20 Plastic DIP 1/2 MAX5251BCPP 0C to +70C 20 Plastic DIP 1 Microprocessor-Controlled Systems MAX5251ACAP 0C to +70C 20 SSOP 1/2 Industrial Process Controls MAX5251BCAP 0C to +70C 20 SSOP 1 Automatic Test Equipment Ordering Information continued on last page. Remote Industrial Controls Pin Configuration appears at end of data sheet. Motion Control Functional Diagram V DOUT CL PDL AGND DD REFAB DGND FBA DECODE MAX5251 CONTROL OUTA INPUT DAC DAC A REGISTER A REGISTER A FBB OUTB INPUT DAC 16-BIT DAC B REGISTER B REGISTER B SHIFT FBC REGISTER OUTC INPUT DAC DAC C REGISTER C REGISTER C FBD OUTD SR INPUT DAC LOGIC DAC D CONTROL REGISTER D REGISTER D OUTPUT CS DIN SCLK UPO REFCD 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.+3V, Quad, 10-Bit Voltage-Output DAC with Serial Interface ABSOLUTE MAXIMUM RATINGS V to AGND............................................................-0.3V to +6V Operating Temperature Ranges DD V to DGND ...........................................................-0.3V to +6V MAX5251 C P ......................................................0C to +70C DD AGND to DGND..................................................................0.3V MAX5251 E P ...................................................-40C to +85C REFAB, REFCD to AGND...........................-0.3V to (V + 0.3V) MAX5251BMJP................................................-55C to +125C DD OUT , FB to AGND...................................-0.3V to (V + 0.3V) Storage Temperature Range .............................-65C to +150C DD Digital Inputs to DGND.............................................-0.3V to +6V Lead Temperature (soldering, 10s) .................................+300C DOUT, UPO to DGND ................................-0.3V to (V + 0.3V) DD Continuous Current into Any Pin.......................................20mA Continuous Power Dissipation (T = +70C) A Plastic DIP (derate 8.00mW/C above +70C) .................640mW SSOP (derate 8.00mW/C above +70C) ......................640mW CERDIP (derate 11.11mW/C above +70C).................889mW 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 = +3.0V to +3.6V, AGND = DGND = 0V, REFAB = REFCD = 1.25V, R = 5k , C = 100pF, T = T to T , unless otherwise DD L L A MIN MAX noted. Typical values are at T = +25C. Output buffer connected in unity-gain configuration (Figure 9).) A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS STATIC PERFORMANCEANALOG SECTION Resolution N 10 Bits MAX5251AC/E 0.25 0.5 Integral Nonlinearity INL LSB MAX5251BC/E 1.0 (Note 1) MAX5251BMJP 2.0 Differential Nonlinearity DNL Guaranteed monotonic 1.0 LSB Offset Error V 6.0 mV OS Offset-Error Tempco 6 ppm/C Gain Error GE (Note 1) 2.4 LSB Gain-Error Tempco 1 ppm/C Power-Supply Rejection Ratio PSRR V = +3.0V to +3.6V 100 800 V/V DD MATCHING PERFORMANCE REFERENCE INPUT (T = +25C) A Reference Input Range V 0V - 1.4 V REF DD Reference Input Resistance R Code dependent, minimum at code 554 hex 8 k REF 2 MAX5251