EVALUATION KIT AVAILABLE MAX5389 Dual, 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometer General Description Features The MAX5389 dual, 256-tap, volatile, low-voltage linear Dual, 256-Tap Linear Taper Positions taper digital potentiometer offers three end-to-end resis- Single +2.6V to +5.5V Supply Operation tance values of 10k, 50k, and 100k. Operating from Low (< 1A) Quiescent Supply Current a single +2.6V to +5.5V power supply, the device provides a low 35ppm/C end-to-end temperature coefficient. The 10k, 50k, 100k End-to-End Resistance Values MAX5389 features an up/down interface. Up/Down Interface The small package size, low supply operating voltage, Power-On Sets Wiper to Midscale low supply current, and automotive temperature range -40C to +125C Operating Temperature Range of the MAX5389 make the device uniquely suited for the portable consumer market and battery backup industrial applications. Ordering Information The MAX5389 is specified over the automotive -40C to END-TO-END +125C temperature range and is available in a 14-pin PART PIN-PACKAGE RESISTANCE (k) TSSOP package. MAX5389LAUD+ 14 TSSOP 10 Applications MAX5389MAUD+ 14 TSSOP 50 Audio Mixing MAX5389NAUD+ 14 TSSOP 100 Mechanical Potentiometer Replacement Note: All devices are specified over the -40C to +125C Low-Drift Programmable Filters and Amplifiers operating temperature range Adjustable Voltage References/Linear Regulators +Denotes a lead(Pb)-free/RoHS-compliant package. Programmable Delays and Time Constants Low-Voltage Battery Applications Functional Diagram V HA WA LA DD CSA MAX5389 UDA HB INCA LATCH 256 DECODER U/D CSB WB POR UDB LB INCB LATCH 256 DECODER GND 19-5141 Rev 3 9/14MAX5389 Dual, 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometer Absolute Maximum Ratings V to GND ............................................................-0.3V to +6V Continuous Power Dissipation (T = +70C) DD A H , W , L to GND .................................... -0.3V to the lower of 14-Pin TSSOP (derate 10mW/C above +70C) ......796.8mW (V + 0.3V) and +6V Operating Temperature Range ......................... -40C to +125C DD All Other Pins to GND .............................................-0.3V to +6V Junction Temperature ......................................................+150C Continuous Current into H , W , and L Storage Temperature Range ............................ -65C to +150C MAX5389L ......................................................................... 5mA Lead Temperature (soldering, 10s) .................................+300C MAX5389M .........................................................................2mA Soldering Temperature (reflow) .......................................+260C MAX5389N .........................................................................1mA 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 = +2.6V to +5.5V, V = V , V = 0V, T = -40C to +125C, unless otherwise noted. Typical values are at V = +5V, DD H DD L A DD T = +25C.) (Note 1) A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Resolution N 256 Taps DC PERFORMANCE (Voltage-Divider Mode) Integral Nonlinearity INL (Note 2) -0.5 +0.5 LSB Differential Nonlinearity DNL (Note 2) -0.5 +0.5 LSB Dual Code Matching Register A = register B -0.5 +0.5 LSB Ratiometric Resistor Tempco (V /V )/ T, no load +5 LSB W W MAX5389L -3 -2.5 Full-Scale Error Code = FFH MAX5389M -1 -0.5 LSB MAX5389N -0.5 -0.25 MAX5389L +2.5 +3 Zero-Scale Error Code = 00H MAX5389M +0.5 +1.0 LSB MAX5389N +0.25 +0.5 DC PERFORMANCE (Variable-Resistor Mode) (Note 3) MAX5389L 1.0 2.5 V > +2.6V MAX5389M 0.5 1.0 DD MAX5389N 0.25 0.8 Integral Nonlinearity R-INL LSB MAX5389L 0.4 1.5 V > +4.75V MAX5389M 0.3 0.75 DD MAX5389N 0.25 0.5 Differential Nonlinearity R-DNL V 2.6V -0.5 +0.5 LSB DD DC PERFORMANCE (Resistor Characteristics) V > 2.6V 250 600 DD Wiper Resistance (Note 4) R WL V > 4.75V 150 200 DD Terminal Capacitance C , C Measured to GND 10 pF H L Wiper Capacitance C Measured to GND 50 pF W End-to-End Resistor Tempco TC No load 35 ppm/C R End-to-End Resistor Tolerance R Wiper not connected -25 +25 % HL Maxim Integrated 2 www.maximintegrated.com