MAX5471 MAXIM [Maxim Integrated Products], MAX5471 Datasheet
MAX5471
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MAX5471 Summary of contents
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... These digital potentiometers feature nonvolatile memory (EEPROM) to return the wiper to its previously stored position upon power-up. The MAX5471/MAX5472 are 2-terminal, variable resistors in 6-pin SOT23 packages. The MAX5474/MAX5475 are 3-terminal potentiometers in 8-pin SOT23 packages. The MAX5471/MAX5474 have an end-to-end resistance of 50kΩ ...
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... All Other Pins to GND .........-0.3V to the lower of (V Maximum Continuous Current into H, L, and W MAX5471/MAX5474 .....................................................±1.3mA MAX5472/MAX5475 .....................................................±0.6mA 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 ...
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Nonvolatile, Linear-Taper Digital ELECTRICAL CHARACTERISTICS (continued +2.7V to +5.25V +25°C, unless otherwise noted.) (Note 1) PARAMETER SYMBOL TIMING CHARACTERISTICS (Figure 1, Note INC Setup ...
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... V = 3.0V DD 500 450 V = 5.0V DD 400 350 300 250 200 TAP POSITION H-TO-GND RESISTANCE vs. TAP POSITION 100 80 MAX5472 60 40 MAX5471 TAP POSITION SUPPLY CURRENT vs. DIGITAL INPUT VOLTAGE 10,000 1000 V = 5.0V DD 100 3. ...
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... TAP POSITION _______________________________________________________________________________________ Potentiometers in SOT23 Typical Operating Characteristics (continued) WIPER TRANSIENT AT POWER-ON (MAX5475 5V/div W 1V/div C = 10pF L TAP 1.0µs/div RESISTANCE INL vs. TAP POSITION (MAX5471) 0.5 VARIABLE-RESISTOR MODE 0.4 0.3 0.2 0 TAP POSITION RESISTANCE DNL vs. TAP POSITION (MAX5474) 0.04 VOLTAGE-DIVIDER MODE ...
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... TAP POSITION PIN NAME MAX5471/ MAX5474/ MAX5472 MAX5475 Chip-Select Input. Drive low to change wiper position (W) through INC and U/D. A low-to high transition with INC high stores the wiper position in nonvolatile memory GND Ground Up/Down Control Input. With U/D low, a high-to-low INC transition decrements the wiper ...
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... DI (state of U/D) can be changed at any time as long as the setup and hold times are met. Since the MAX5471/MAX5472 have the wiper internally connected increment command increases the resistance between H and GND, and a decrement com- mand decreases the resistance between H and GND. ...
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... INC DECODER COUNTER 3 U NONVOLATILE MEMORY R 1 Figure 2. MAX5471/MAX5472 Functional Diagram 8 _______________________________________________________________________________________ Truth Table The MAX5471/MAX5472/MAX5474/MAX5475 are W intended for circuits requiring digitally controlled Decrement adjustable resistance, such as LCD contrast control (where voltage biasing adjusts the display contrast), or Increment programmable filters with adjustable gain and/or cutoff No change frequency ...
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... Figure 4. Positive LCD Bias Control Using a Voltage-Divider 5V 30V H MAX5471 MAX5472 GND Figure 5. Positive LCD Bias Control Using a Variable Resistor _______________________________________________________________________________________ Potentiometers in SOT23 OUT MAX5471 MAX5472 GND Figure 6. Programmable Filter V OUT TRANSISTOR COUNT: 5031 PROCESS: BiCMOS V OUT MAX5471 MAX5472 GND Chip Information 9 ...
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Nonvolatile, Linear-Taper Digital Potentiometers in SOT23 (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) 10 ______________________________________________________________________________________ Package Information ...
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Nonvolatile, Linear-Taper Digital (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) ______________________________________________________________________________________ Potentiometers in SOT23 Package Information (continued) 11 ...
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Nonvolatile, Linear-Taper Digital Potentiometers in SOT23 (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages PIN 1 I.D. DOT (SEE ...