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MAX5433LETA+ Datasheet(PDF) 1 Page - Maxim Integrated Products |
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MAX5433LETA+ Datasheet(HTML) 1 Page - Maxim Integrated Products |
1 / 19 page General Description The MAX5432–MAX5435 nonvolatile, linear-taper, digi- tal potentiometers perform the function of a mechanical potentiometer, but replace the mechanics with a simple 2-wire serial interface. Each device performs the same function as a discrete potentiometer or a variable resis- tor and has 32 tap points. The MAX5432–MAX5435 feature an internal, nonvolatile, electrically erasable programmable read-only memory (EEPROM) that returns the wiper to its previously stored position at power-up. The fast-mode I2C-compatible serial interface allows communication at data rates up to 400kbps, minimizing board space and reducing inter- connection complexity. Each device is available with multiple factory-preset I2C addresses (see the Ordering Information/Selector Guide). Use the MAX5432–MAX5435 in applications requiring digitally controlled resistors. Two resistance values are available (50k Ω and 100kΩ) in a voltage-divider or vari- able resistor configuration. The nominal resistor temper- ature coefficient is 35ppm/°C end-to-end, and only 5ppm/°C ratiometric, making the devices ideal for applications requiring a low-temperature-coefficient variable resistor such as low-drift, programmable-gain amplifier circuit configurations. The MAX5432/MAX5433 are available in a 3mm x 3mm 8-pin TDFN package and the MAX5434/MAX5435 are available in a 6-pin thin SOT23 package. The MAX5432– MAX5435 are specified over the extended (-40°C to +85°C) temperature range. Applications Mechanical Potentiometer Replacement Low-Drift Programmable-Gain Amplifiers Volume Control Liquid-Crystal Display (LCD) Screen Adjustment Features ♦ Tiny 3mm x 3mm 8-Pin TDFN and 6-Pin Thin SOT23 Packages ♦ Power-On Recall of Wiper Position from Nonvolatile Memory ♦ 35ppm/°C End-to-End Resistance Temperature Coefficient ♦ 5ppm/°C Ratiometric Temperature Coefficient ♦ 50kΩ/100kΩ Resistor Values ♦ Fast 400kbps I2C-Compatible Serial Interface ♦ 500nA (typ) Static Supply Current ♦ +2.7V to +5.25V Single-Supply Operation ♦ 32 Tap Positions ♦ ±0.15 LSB INL (typ), ±0.15 LSB DNL (typ) 32-Tap, Nonvolatile, I2C, Linear, Digital Potentiometers ________________________________________________________________ Maxim Integrated Products 1 Ordering Information/Selector Guide 19-3511; Rev 3; 11/07 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. EVALUATION KIT AVAILABLE PART PIN-PACKAGE TOP MARK I2C ADDRESS R (k Ω Ω Ω Ω) PKG CODE MAX5432LETA+ 8 TDFN-EP* ANG 010100A0** 50 T833-1 MAX5432META+ 8 TDFN-EP* ANI 010110A0** 50 T833-1 MAX5433LETA+ 8 TDFN-EP* ANF 010100A0** 100 T833-1 MAX5433META+ 8 TDFN-EP* ANH 010110A0** 100 T833-1 MAX5434LEZT+T 6 Thin SOT23-6 AABX 0101000 50 Z6-1 *EP = Exposed pad. **A0 represents the logic state of input A0 of the device in the TDFN package. +Denotes a lead-free package. T = Tape and reel. Note: All devices are specified over the -40°C to +85°C operating temperature range. TDFN + TOP VIEW GND SDA SCL 16 L 5W VDD SOT23 2 34 MAX5434 MAX5435 A0 VDD SCL 1 2 8 7 W L SDA GND H 3 4 6 5 MAX5432 MAX5433 + Pin Configurations Ordering Information/Selector Guide continued at end of data sheet. |
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