MAX5712 Low-Power, 12-Bit, Rail to Rail Voltage-Output Serial DAC in SOT23 General Description Features The MAX5712 is a small footprint, low-power, 12-bit digital- Wide -40C to +125C Operating Temperature Range to-analog converter (DAC) that operates from a single Low 85A Supply Current +2.7V to +5.5V supply. The MAX5712 on-chip precision Ultra Low 0.3A Power-Down Supply Current output amplifier provides rail-to-rail output swing. Drawing only 85A supply current at +3V, the MAX5712 is ideally Single +2.7V to +5.5V Supply Voltage suited for portable battery-operated equipment. Fast 20MHz 3-Wire SPI/QSPI/MICROWIRE and The MAX5712 utilizes a 3-wire serial-interface that is DSP-Compatible Serial Interface and DSP- compatible with SPI/QSPI/MICROWIRE Schmitt-Triggered Inputs for Direct Interfacing to interface standards. All logic inputs are CMOS-logic com- Optocouplers patible and buffered with Schmitt triggers to allow direct Rail-to-Rail Output Buffer interfacing to optocouplers. The MAX5712 incorporates a power-on reset (POR) circuit that ensures the DAC Tiny 6-Pin SOT23 Package begins in a zero-volt-state upon power-up. A power-down Power-On Reset to 0V mode that reduces current consumption to 0.3A may be Three Software-Selectable Power-Down Output initiated through a software command. Impedances (100k, 1k, Hi-Z) The MAX5712 is available in a small 6-pin SOT23 package. For dual and quad 12-bit versions, see the MAX5722 and MAX5742 data sheets. For single, dual, Ordering Information and quad 10-bit versions, see the MAX5711, MAX5721 PIN- TOP and MAX5741 data sheets. The MAX5712 is specified over PART TEMP RANGE PACKAGE MARK the automotive temperature range of -40C to +125C. MAX5712EUT+T -40C to +85C 6 SOT23 ABCQ/ACST Applications MAX5712AUT+T -40C to +125C 6 SOT23 AAUD/ACST Automatic Tuning +Denotes a lead(Pb)-free/RoHS-compliant package. Gain and Offset Adjustment Power Amplifier Control Pin Configuration appears at end of data sheet. Process Control I/O Boards Battery-Powered Equipment VCO Control QSPI is a trademark of Motorola, Inc. MICROWIRE is a registered trademark of National Semiconductor, Corp. Functional Diagram V GND DD MAX5712 REF+ REF- DAC OUTPUT OUT 12-BIT REGISTER BUFFER DAC 100k 1k INPUT POWER-DOWN CONTROL CONTROL LOGIC LOGIC POWER-ON RESET CS SCLK DIN 19-2126 Rev 4 9/16MAX5712 Low-Power, 12-Bit, Rail to Rail Voltage-Output Serial DAC in SOT23 Absolute Maximum Ratings V to GND ............................................................-0.3V to +6V Operating Temperature Range ......................... -40C to +125C DD OUT, SCLK, DIN, CS to GND ................... -0.3V to (V + 0.3V) Maximum Junction Temperature .....................................+150C DD Maximum Current into Any Pin.........................................50mA Storage Temperature Range ............................ -65C to +150C Continuous Power Dissipation (T = +70C) Lead Temperature (soldering, 10s) .................................+300C A 6-Pin SOT23 (derate 9.1mW/C above +70C) ..........727mW Soldering Temperature (reflow) .......................................+260C 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. Package Thermal Characteristics (Note 1) SOT23 Junction-to-Ambient Thermal Resistance ( ) ...134.40C/W JA Junction-to-Case Thermal Resistance ( ) ...............39C/W JC Electrical Characteristics (V = +2.7V to +5.5V, GND = 0, R = 5k, C = 200pF, T = T to T , unless otherwise noted. Typical values are at V = +5V. DD L L A MIN MAX DD T = +25C) A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS STATIC ACCURACY (NOTE 1) Resolution N 12 Bits Differential Nonlinearity Error DNL Guaranteed monotonic (Note 2) 1 LSB Integral Nonlinearity Error INL (Note 2) 2 16 LSB Zero-Code Error OE Code = 000 0.4 1.5 % of FS Zero-Code Error Tempco 2.3 ppm/C Gain Error GE Code = FFF hex -3 % of FS Gain-Error Tempco Integral 0.26 ppm/C DAC OUTPUT Output Voltage Range No-load (Note 3) 0 V V DD DC Output Impedance Code = 800 hex 0.8 V = +3V 15 DD Short Circuit Current mA V = +5V 48 DD V = +3V 8 DD Wake-Up Time s V = +5V 8 DD Output Leakage Current Power-down mode = output high-impedance 18 33 nA DIGITAL INPUTS (SCLK, DIN, CS) Input High Voltage V V = +3V, +5V 0.7 x V V IH DD DD Input Low Voltage V V = +3V, +5V 0.3 x V V IL DD DD Input Leakage Current I Digital Inputs = 0 or V 0.1 1 A IN DD Input Capacitance C 5 pF IN DYNAMIC PERFORMANCE Voltage-Output Slew Rate SR 0.5 V/s Voltage-Output Settling Time 400 hex to C00 hex (Note 4) 4 10 s Digital Feedthrough Any digital inputs from 0 to V 0.2 nV-s DD Major carry transition (code 7FF hex to code Digital-Analog Glitch Impulse 12 nV-s 800 hex) Maxim Integrated 2 www.maximintegrated.com