MAX5432MAX5435 19-3511 Rev 3 11/07 2 32-Tap, Nonvolatile, I C, Linear, Digital Potentiometers General Description Features The MAX5432MAX5435 nonvolatile, linear-taper, digi- Tiny 3mm x 3mm 8-Pin TDFN and 6-Pin Thin tal potentiometers perform the function of a mechanical SOT23 Packages potentiometer, but replace the mechanics with a simple Power-On Recall of Wiper Position from 2-wire serial interface. Each device performs the same function as a discrete potentiometer or a variable resis- Nonvolatile Memory tor and has 32 tap points. 35ppm/C End-to-End Resistance Temperature The MAX5432MAX5435 feature an internal, nonvolatile, Coefficient electrically erasable programmable read-only memory 5ppm/C Ratiometric Temperature Coefficient (EEPROM) that returns the wiper to its previously stored 2 position at power-up. The fast-mode I C-compatible 50k /100k Resistor Values serial interface allows communication at data rates up to 2 Fast 400kbps I C-Compatible Serial Interface 400kbps, minimizing board space and reducing inter- connection complexity. Each device is available with 500nA (typ) Static Supply Current 2 multiple factory-preset I C addresses (see the Ordering +2.7V to +5.25V Single-Supply Operation Information/Selector Guide). 32 Tap Positions Use the MAX5432MAX5435 in applications requiring digitally controlled resistors. Two resistance values are 0.15 LSB INL (typ), 0.15 LSB DNL (typ) available (50k and 100k ) in a voltage-divider or vari- able resistor configuration. The nominal resistor temper- ature coefficient is 35ppm/C end-to-end, and only Pin Configurations 5ppm/C ratiometric, making the devices ideal for applications requiring a low-temperature-coefficient variable resistor such as low-drift, programmable-gain TOP VIEW amplifier circuit configurations. + + The MAX5432/MAX5433 are available in a 3mm x 3mm H 1 8 W V16L DD 8-pin TDFN package and the MAX5434/MAX5435 are available in a 6-pin thin SOT23 package. The MAX5432 SDA 2 7 L GND 2 5W MAX5435 are specified over the extended (-40C to GND 3 6 A0 +85C) temperature range. SCL34 SDA MAX5432 MAX5434 MAX5433 SCL 4 5 V MAX5435 DD Applications SOT23 Mechanical Potentiometer Replacement TDFN Low-Drift Programmable-Gain Amplifiers Volume Control Liquid-Crystal Display (LCD) Screen Adjustment Ordering Information/Selector Guide 2 PART PIN-PACKAGE TOP MARK I C ADDRESS R (k ) PKG CODE MAX5432LETA+ 8 TDFN-EP* ANG 010100A ** 50 T833-1 0 MAX5432META+ 8 TDFN-EP* ANI 010110A ** 50 T833-1 0 MAX5433LETA+ 8 TDFN-EP* ANF 010100A ** 100 T833-1 0 MAX5433META+ 8 TDFN-EP* ANH 010110A ** 100 T833-1 0 MAX5434LEZT+T 6 Thin SOT23-6 AABX 0101000 50 Z6-1 *EP = Exposed pad. **A represents the logic state of input A0 of the device in the TDFN package. 0 +Denotes a lead-free package. T = Tape and reel. Note: All devices are specified over the -40C to +85C operating temperature range. Ordering Information/Selector Guide continued at end of data sheet. Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com. EVALUATION KIT AVAILABLE2 32-Tap, Nonvolatile, I C, Linear, Digital Potentiometers ABSOLUTE MAXIMUM RATINGS V to GND...........................................................-0.3V to +6.0V Continuous Power Dissipation (T = +70C) DD A SDA, SCL to GND..................................................-0.3V to +6.0V 6-Pin Thin SOT23 (derate 9.1mW/C above +70C)....727mW A0, H, L, and W to GND .............................-0.3V to (V + 0.3V) 8-Pin TDFN (derate 18.2mW/C above +70C) ......1454.5mW DD Maximum Continuous Current into H, L, and W Operating Temperature Range ...........................-40C to +85C MAX5432/MAX5434.....................................................1.3mA Junction Temperature......................................................+150C MAX5433/MAX5435.....................................................0.6mA Storage Temperature Range .............................-60C to +150C Input/Output Latchup Immunity........................................50mA Lead Temperature (soldering, 10s) .................................+300C 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 +5.25V, V = V , V = GND, T = -40C to +85C, unless otherwise noted. Typical values are at V = +5V, T = DD H DD L A DD A +25C.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS DC PERFORMANCE Resolution 32 Taps MAX5432/MAX5434 37.5 50 62.5 End-to-End Resistance R k H-L MAX5433/MAX5435 75 100 125 End-to-End Resistance TC 35 ppm/C R Temperature Coefficient Ratiometric Resistance 5 ppm/C Temperature Coefficient V = 5V 0.15 0.5 DD Variable resistor (Note 2) V = 3V 0.15 0.5 DD Integral Nonlinearity INL LSB V = 5V 0.15 0.5 DD Voltage-divider, MAX5432/MAX5433 (Note 3) V = 3V 0.15 0.5 DD V = 5V 0.15 0.5 DD Variable resistor (Note 2) V = 3V 0.15 0.5 DD Differential Nonlinearity DNL LSB V = 5V 0.15 0.5 DD Voltage-divider, MAX5432/MAX5433 (Note 3) V = 3V 0.15 0.5 DD MAX5432, 50k -0.5 Full-Scale Error (Note 4) LSB MAX5433, 100k -0.5 MAX5432, 50k +0.5 Zero-Scale Error (Note 5) LSB MAX5433, 100k +0.5 Wiper Resistance R MAX5432/MAX5433 (Note 6) 610 1200 W DIGITAL INPUTS 0.7 x Input High Voltage V (Note 7) V IH V DD 0.3 x Input Low Voltage V (Note 7) V IL V DD Input Leakage Current I 1 A LEAK Input Capacitance 5pF 2 MAX5432MAX5435