MAX5104 19-1587 Rev 0 11/99 Low-Power, Dual, Voltage-Output, 12-Bit DAC with Serial Interface General Description Features The MAX5104 low-power, serial, voltage-output, dual 12-Bit Dual DAC with Internal Gain of +2V/V 12-bit digital-to-analog converter (DAC) consumes only Rail-to-Rail Output Swing 500A from a single +5V supply. This device features Rail-to-Rail output swing and is available in a space- 12s Settling Time saving 16-pin QSOP package. To maximize the dynamic +5V Single-Supply Operation range, the DAC output amplifiers are configured with an internal gain of +2V/V. Low Quiescent Current The 3-wire serial interface is SPI/QSPI/MICROWIRE 500A (normal operation) compatible. Each DAC has a double-buffered input 2A (power-down mode) organized as an input register followed by a DAC register, SPI/QSPI/MICROWIRE Compatible which allows the input and DAC registers to be updated independently or simultaneously with a 16-bit serial Space-Saving 16-Pin QSOP Package word. Additional features include programmable power- Power-On Reset Clears Registers and DACs to Zero down (2A), hardware power-down lockout (PDL), a separate reference voltage input for each DAC that Adjustable Output Offset accepts AC and DC signals, and an active-low clear input (CL) that resets all registers and DACs to zero. These devices provide a programmable logic pin for Ordering Information added functionality, and a serial-data output pin for daisy chaining. PIN- INL PART TEMP. RANGE PACKAGE (LSB) Applications MAX5104CEE 0C to +70C 16 QSOP 4 Industrial Process Control MAX5104EEE -40C to +85C 16 QSOP 4 Remote Industrial Controls Pin Configuration appears at end of data sheet. Digital Offset and Gain Adjustment Microprocessor-Controlled Systems Motion Control Automatic Test Equipment (ATE) Functional Diagram V CL PDL DGND DD DOUT AGND REFA OSA DECODE R CONTROL R OUTA INPUT DAC DAC A OSB REG A REG A 16-BIT R SHIFT REGISTER MAX5104 R SR OUTB CONTROL INPUT DAC DAC B LOGIC REG B REG B OUTPUT CS DIN SCLK UPOH REFB Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd. SPI and QSPI are trademarks of Motorola, Inc. MICROWIRE is a trademark of National Semiconductor Corp. Maxim Integrated Products 1 For free samples & the latest literature: Low-Power, Dual, Voltage-Output, 12-Bit DAC with Serial Interface ABSOLUTE MAXIMUM RATINGS V to AGND............................................................-0.3V to +6V Continuous Power Dissipation (T = +70C) DD A V to DGND ...........................................................-0.3V to +6V 16-Pin QSOP (derate 8.30mW/C above +70C).......667mW DD AGND to DGND..................................................................0.3V Operating Temperature Ranges OSA, OSB to AGND.......................(V - 4V) to (V + 0.3V) MAX5104CEE ...................................................0C to +70C AGND DD REF , OUT to AGND.................................-0.3V to (V + 0.3V) MAX5104EEE.................................................-40C to +85C DD Digital Inputs (SCLK, DIN, CS, Junction Temperature......................................................+150C CL, PDL) to DGND...........................................(-0.3V to +6V) Storage Temperature Range .............................-65C to +150C Digital Outputs (DOUT, UPO) to DGND.....-0.3V to (V + 0.3V) Lead Temperature (soldering, 10sec) .............................+300C DD Maximum Current into Any Pin .........................................20mA 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 = +5V 10%, V = V = +2.048V, R = 10k, C = 100pF, T = T to T , unless otherwise noted. Typical values DD REFA REFB L L A MIN MAX are at T = +25C (OS connected to AGND for a gain of +2V/V).) A SYMBOL CONDITIONS MIN TYP MAX PARAMETER UNITS STATIC PERFORMANCE 12 Resolution Bits Integral Nonlinearity INL (Note 1) 4 LSB Differential Nonlinearity DNL Guaranteed monotonic 1 LSB Offset Error V Code = 10 10 mV OS Offset Tempco TCV Normalized to 2.048V 4 ppm/C OS Gain Error -0.2 8 LSB Gain-Error Tempco Normalized to 2.048V 4 ppm/C V Power-Supply DD PSRR 4.5V V 5.5V 20 600 V/V DD Rejection Ratio REFERENCE INPUT Reference Input Range REF 0V - 1.4 V DD Reference Input Resistance R Minimum with code 1554 hex 14 20 k REF MULTIPLYING-MODE PERFORMANCE Input code = 1FFE hex, Reference 3dB Bandwidth 300 kHz V = 0.67Vp-p at 2.5V REF DC Input code = 0000 hex, Reference Feedthrough -82 dB V = (V - 1.4Vp-p), f = 1kHz REF DD Signal-to-Noise plus Input code = 1FFE hex, SINAD 75 dB Distortion Ratio V = 1Vp-p at 1.25V , f = 25kHz REF DC DIGITAL INPUTS Input High Voltage V CL, PDL, CS, DIN, SCLK 3 V IH Input Low Voltage V CL, PDL, CS, DIN, SCLK 0.8 V IL Input Hysteresis V 200 mV HYS Input Leakage Current I V = 0 to V 0.001 1 A IN IN DD Input Capacitance C 8 pF IN 2 MAX5104