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MAX5452 Datasheet(PDF) 1 Page - Maxim Integrated Products |
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MAX5452 Datasheet(HTML) 1 Page - Maxim Integrated Products |
1 / 12 page General Description The MAX5450–MAX5455 are a family of dual digital potentiometers that perform the same function as a mechanical potentiometer or variable resistor. The MAX5451/MAX5453/MAX5455 have two 3-terminal potentiometers and the MAX5450/MAX5452/MAX5454 have two 2-terminal variable resistors. The MAX5450– MAX5455 operate from a +2.7V to +5.5V single-supply voltage and use an ultra-low supply current of 0.1µA. These devices consist of two fixed resistors each with 256 digitally-controlled wiper contacts. The conve- nient power-on reset (POR) sets the wiper to midscale position at power-up and the easy-to-use up/down interface allows glitchless switching between resistor taps. Six inputs control the 14-pin MAX5451/ MAX5453/MAX5455 potentiometers. Four inputs control the 10-pin MAX5450/MAX5452/MAX5454 variable resis- tors. The MAX5450–MAX5455 are ideal for applications requiring digitally-controlled resistors. Three resistance values are available: 10k Ω, 50kΩ, and 100kΩ. An end- to-end resistor temperature coefficient of 35ppm/°C and a ratiometric temperature coefficient of 5ppm/°C make the MAX5450–MAX5455 excellent choices for adjustable gain circuit requiring low-temperature drift The MAX5450–MAX5455 are available in 10-pin µMAX and 14-pin TSSOP packages. Each device is guaran- teed over the extended–industrial temperature range (-40°C to +85°C). Applications Mechanical Potentiometer Replacement Low-Drift Programmable-Gain Amplifier (PGA) Volume Control LCD Screen Adjustment Adjustable Voltage References Adjustable Linear Regulators Programmable Filters, Delays, Time Constants Impedance Matching Features o Small-Footprint Packages 10-Pin µMAX (MAX5450/MAX5452/MAX5454) 14-Pin TSSOP (MAX5451/MAX5453/MAX5455) o 256-Tap Positions o Independent Up/Down Potentiometer Controls (MAX5451/MAX5453/MAX5455) o Ultra-Low 0.1µA Supply Current o +2.7V to +5.5V Single-Supply Operation o Low 35ppm/°C End-to-End Temperature Coefficient o Power-On Reset Sets Wiper to Midscale (Position 127) o Glitchless Switching Between the Resistor Taps o 10kΩ, 50kΩ, 100kΩ Resistance Values Dual, 256-Tap, Up/Down Interface, Digital Potentiometers ________________________________________________________________ Maxim Integrated Products 1 1 2 3 4 5 10 9 8 7 6 INC GND W2 W1 VDD MAX5450 MAX5452 MAX5454 µMAX TOP VIEW L2 L1 14 13 12 11 10 9 8 1 2 3 4 5 6 7 GND VDD MAX5451 MAX5453 MAX5455 W2 H2 L2 L1 H1 W1 TSSOP U/D CS1 CS2 INC1 INC2 U/D1 U/D2 CS2 CS1 Pin Configurations 19-1997; Rev 0; 4/01 Ordering Information PART TEMP. RANGE PIN- PACKAGE R (k Ω) MAX5450EUB -40 °C to +85°C 10 µMAX 10 MAX5451EUD -40 °C to +85°C 14 TSSOP 10 MAX5452EUB -40 °C to +85°C 10 µMAX 50 MAX5453EUD -40 °C to +85°C 14 TSSOP 50 MAX5454EUB -40 °C to +85°C 10 µMAX 100 MAX5455EUD -40 °C to +85°C 14 TSSOP 100 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. |
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