19-3665; Rev 1; 7/09 EVALUATION KITAVAILABLEOne-Time Programmable, Linear-Taper DigitalPotentiometersMAX5527/MAX5528/MAX5529General DescriptionFeatures The MAX5527/MAX5528/MAX5529 linear-taper digital o Wiper Position Stored After One-Time Fuse potentiometers perform the same function as mechanical Programming potentiometers, replacing the mechanics with a simple o 64 Tap Positions 2-wire up/down digital interface. These digital poten- o Wiper Position Programmed Through Simple tiometers provide an optional one-time programmable 2-Wire Up/Down Interface feature that sets the power-on reset position of the wiper. Once the wiper position is programmed, the 2-wire inter- o 35ppm/°C End-to-End Temperature Coefficient face can be disabled to prevent unwanted adjustment. o 5ppm/°C Ratiometric Temperature Coefficient The MAX5527/MAX5528/MAX5529 provide an end-to-end o Ultra-Low 1.5µA (max) Static Supply Current resistance of 100kΩ, 50kΩ, and 10kΩ, respectively. The o +2.7V to +5.5V Single-Supply Operation devices feature low temperature coefficients of 35ppm/°C o 10kΩ, 50kΩ, and 100kΩ End-to-End Resistances end-to-end and 5ppm/°C ratiometric. All devices offer 64 wiper positions and operate from a single +2.7V to +5.5V o Tiny, 3mm x 3mm, 8-Pin TDFN and 5mm x 3mm, supply. An ultra-low, 0.25µA (typ) standby supply current 8-Pin µMAX Packages saves power in battery-operated applications. Ordering Information The MAX5527/MAX5528/MAX5529 are available in 3mm x 3mm, 8-pin TDFN and 5mm x 3mm, 8-pin RESISTANCETOP µMAX® packages. Each device is guaranteed over the PARTPIN-PACKAGE(k Ω )MARK -40°C to +105°C temperature range. MAX5527 GTA+ 8 TDFN-EP* 100 AOG Applications MAX5527GUA+ 8 µMAX 100 — Products Using One-Time Factory Calibration MAX5528 GTA+ 8 TDFN-EP* 50 AOH Mechanical Potentiometer Replacements MAX5528GUA+ 8 µMAX 50 — MAX5529 GTA+ 8 TDFN-EP* 10 AOI Pin Configurations MAX5529GUA+ 8 µMAX 10 — TOP VIEW +Denotes a lead(Pb)-free/RoHS-compliant package. W 1 8 H *EP = Exposed pad. Note : All devices are specified over the -40°C to +105°C operat- CS 2 7 L ing temperature range. V MAX5527 DD 3 6 Functional Diagram U/D MAX5528 MAX5529 H GND 4 5 PV S63 µ MAX D R V MAX5527 62 H L U/ PV DD MAX5528 8 7 6 5 GND S62 MAX5529 R61 CS S61 RW UP/DOWN 64- MAX5527 U/D COUNTER POSITION W MAX5528 DECODER S2 MAX5529 ONE-TIME PROGRAM R1 PV BLOCK S1 1 2 3 4 R0 W CS V DD GND S TDFN* 0 *EXPOSED PADDLE. CONNECT TO GND. L µMAX is a registered trademark of Maxim Integrated Products, Inc. ________________________________________________________________ Maxim Integrated Products1For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.