MAX5811 19-2270 Rev 1 11/04 10-Bit, Low-Power, 2-Wire Interface, Serial, Voltage-Output DAC General Description Features The MAX5811 is a single, 10-bit voltage-output digital-to- Ultra-Low Supply Current 2 analog converter (DAC) with an I C-compatible 2-wire 100A at V = 3.6V DD interface that operates at clock rates up to 400kHz. The 130A at V = 5.5V DD device operates from a single 2.7V to 5.5V supply and 300nA Low-Power Power-Down Mode draws only 100A at V = 3.6V. A low-power power- DD down mode decreases current consumption to less than Single 2.7V to 5.5V Supply Voltage 1A. The MAX5811 features three software-selectable 2 power-down output impedances: 100k , 1k , and high Fast 400kHz I C-Compatible 2-Wire Serial impedance. Other features include an internal precision Interface Rail-to-Rail output buffer and a power-on reset (POR) Schmitt-Trigger Inputs for Direct Interfacing circuit that powers up the DAC in the 100k power-down to Optocouplers mode. 2 Rail-to-Rail Output Buffer Amplifier The MAX5811 features a double-buffered I C-compatible serial interface that allows multiple devices to share a sin- Three Software-Selectable Power-Down Output gle bus. All logic inputs are CMOS-logic compatible and Impedances buffered with Schmitt triggers, allowing direct interfacing 100k , 1k , and High Impedance to optocoupled and transformer-isolated interfaces. The MAX5811 minimizes digital noise feedthrough by discon- Read-Back Mode for Bus and Data Checking necting the clock (SCL) signal from the rest of the device Power-On Reset to Zero when an address mismatch is detected. The MAX5811 is specified over the extended temperature Miniature 6-Pin SOT23 Package range of -40C to +85C and is available in a space-sav- ing 6-pin SOT23 package. Refer to the MAX5812 data Ordering Information sheet for the 12-bit version. PIN- TOP PART TEMP RANGE PACKAGE MARK Applications MAX5811LEUT-T -40C to +85C 6 SOT23-6 AAYS Digital Gain and Offset Adjustments MAX5811MEUT-T -40C to +85C 6 SOT23-6 AAYU Programmable Voltage and Current Sources MAX5811NEUT-T -40C to +85C 6 SOT23-6 AAYW Programmable Attenuation MAX5811PEUT-T -40C to +85C 6 SOT23-6 AAYY VCO/Varactor Diode Control Functional Diagram appears at end of data sheet. Low-Cost Instrumentation Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd. Battery-Operated Equipment 2 I C is a trademark of Philips Corp. Typical Operating Circuit Pin Configuration V DD V DD TOP VIEW C SDA SCL R R P P R S V 1 6 OUT DD SCL V DD R S MAX5811 GND 2 5 ADD SDA OUT MAX5811 SCL SDA 3 4 R S SCL V DD R S SOT23 MAX5811 SDA OUT 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.10-Bit Low Power 2-Wire Interface Serial, Voltage-Output DAC ABSOLUTE MAXIMUM RATINGS V , SCL, SDA to GND............................................-0.3V to +6V Operating Temperature Range ...........................-40C to +85C DD OUT, ADD 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 Lead Temperature (soldering, 10s) .................................+300C Continuous Power Dissipation (T = +70C) A 6-Pin SOT23 (derate 9.1mW above +70C).................727mW 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 = +2.7V to +5.5V, GND = 0, R = 5k , C = 200pF, T = T to T , unless otherwise noted. Typical values are at DD L L A MIN MAX V = +5V, T = +25C.) (Note 1) DD A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS STATIC ACCURACY (Note 2) Resolution N 10 Bits Integral Nonlinearity INL (Note 3) 0.5 4 LSB Differential Nonlinearity DNL Guaranteed monotonic (Note 3) 0.5 LSB Zero-Code Error ZCE Code = 000 hex, V = 2.7V 6 40 mV DD Zero-Code Error Tempco 2.3 ppm/ C Gain Error GE Code = 3FF hex -0.8 -3 %FS Gain-Error Tempco 0.26 ppm/ C DAC OUTPUT Output Voltage Range No load (Note 4) 0 V V DD DC Output Impedance Code = 200 hex 1.2 V = 5V, V = full scale (short to GND) 42.2 DD OUT Short-Circuit Current mA V = 3V, V = full scale (short to GND) 15.1 DD OUT V = 5V 8 DD Wake-Up Time s V = 3V 8 DD Power-down mode = high impedance, DAC Output Leakage Current 0.1 1 A V = 5.5V, V = V or GND DD OUT DD DIGITAL INPUTS (SCL, SDA) 0.7 x Input High Voltage V V IH V DD 0.3 x Input Low Voltage V V IL V DD 0.05 x Input Hysteresis V V DD Input Leakage Current Digital inputs = 0 or V 0.1 1A DD Input Capacitance 6pF DIGITAL OUTPUT (SDA) Output Logic Low Voltage V I = 3mA 0.4 V OL SINK Three-State Leakage Current I Digital inputs = 0 or V 0.1 1A L DD Three-State Output Capacitance 6pF 2 MAX5811