MAX5413/MAX5414/MAX5415 19-1943 Rev 0 1/01 Dual, 256-Tap, Low-Drift, Digital Potentiometers in 14-Pin TSSOP General Description Features The MAX5413/MAX5414/MAX5415 is a family of dual 14-Pin TSSOP Small-Footprint Package linear taper digital potentiometers. Each device has two 256 Tap Positions 3-terminal potentiometers. The MAX5413/MAX5414/ MAX5415 operate from +2.7V to +5.5V single-supply Ultra-Low 0.1A Supply Current voltages and use an ultra-low 0.1A supply current. +2.7V to +5.5V Single-Supply Operation These devices also provide glitchless switching between resistor taps, as well as a convenient power- Two Independent Potentiometers in a Package on reset (POR) that sets the wiper to the midscale posi- Low End-to-End Temperature Coefficient tion at power-up. Each potentiometer consists of a fixed resistor with a wiper contact that is digitally controlled 35ppm/C through a 3-wire serial interface and has 256 tap points. Low Ratiometric Temperature Coefficient It performs the same function as a discrete potentiome- 5ppm/C ter or variable resistor. Power-On Reset: Wiper Goes to Midscale These parts are ideal for applications requiring digitally (Position 128) controlled resistors. Three resistance values are avail- able: 10k (MAX5413), 50k (MAX5414), and 100k Glitchless Switching Between Resistor Taps (MAX5415). A nominal resistor temperature coefficient 3-Wire SPI-Interface Compatible of 35ppm/C end-to-end and 5ppm/C ratiometric make the MAX5413/MAX5414/MAX5415 ideal for applications 10k /50k /100k Resistor Values requiring low temperature-coefficient variable resistors, such as adjustable-gain circuit configurations. The MAX5413/MAX5414/MAX5415 are available in a 14- pin TSSOP package. Each device is guaranteed over the extended industrial temperature range (-40C to +85C). Applications Ordering Information Mechanical Potentiometer Replacement PART TEMP. RANGE PIN-PACKAGE R (k ) Low-Drift Programmable Gain Amplifier (PGA) MAX5413EUD -40C to +85C 14 TSSOP 10 MAX5414EUD -40C to +85C 14 TSSOP 50 Volume Control MAX5415EUD -40C to +85C 14 TSSOP 100 LCD Screen Adjustment Adjustable Voltage Reference Programmable Filters, Delays, Time Constant Pin Configuration Impedance Matching TOP VIEW GND 1 14 L A L 2 13 H B A H 3 12 W B A W 4 MAX5413 11 V B DD MAX5414 N.C. 5 10 N.C. MAX5415 N.C. 6 9 SCLK CS 7 8 DIN SPI is a trademark of Motorola, Inc. TSSOP Maxim Integrated Products 1 For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com.Dual, 256-Tap, Low-Drift, Digital Potentiometers in 14-Pin TSSOP ABSOLUTE MAXIMUM RATINGS V to GND..............................................................-0.3V to +6V Operating Temperature Range ...........................-40C to +85C DD DIN, SCLK, CS .........................................................-0.3V to +6V Junction Temperature......................................................+150C H , L , W to GND ........................................-0.3V to (V +0.3) Storage Temperature Range .............................-65C to +150C X X X DD Maximum Continuous Current into H , L , and W ............1mA Lead Temperature (soldering, 10s) .................................+300C X X X Continuous Power Dissipation (T = +70C) A 14-Pin TSSOP (derate 9.1mW/C 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 = +5V, unless otherwise noted. V = V , V = 0, T = T to T . Typical values are at V = +5V, T = +25C, DD H DD L A MIN MAX DD A unless otherwise noted.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS DC PERFORMANCE (Voltage-Divider Mode) Resolution N 8 Bits Integral Nonlinearity (Notes 1, 2) INL 1/2 LSB D i fferent ial N onli near i ty (N otes 1, 2) DNL 1/2 LSB End-to-End Resistor Tempco TC 35 ppm/C R Ratiometric Resistor Tempco 5 ppm/C MAX5413 -8 Full-Scale Error MAX5414 -1.6 LSB MAX5415 0.8 MAX5413 +8 Zero-Scale Error MAX5414 +1.6 LSB MAX5415 +0.8 DC PERFORMANCE (Variable-Resistor Mode) Resolution N 8 Bits V = +5V 1 LSB DD MAX5413 3 INL Integral Nonlinearity (Notes 1, 3) V = +3V MAX5414 1.5 LSB DD MAX5415 1.5 V = +5V Differential Nonlinearity DD DNL 1/2 LSB (Notes 1, 3) V = +3V DD DC PERFORMANCE (Resistor Characteristics) V = +5V 275 DD Wiper Resistance (Note 4) R W V = +3V 550 DD MAX5413 50 Wiper Capacitance C pF W MAX5414/MAX5415 30 MAX5413 7.5 10 12.5 End-to-End Resistance R MAX5414 37.5 50 62.5 k HL MAX5415 75 100 125 2 MAX5413/MAX5414/MAX5415