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MAX5407 Datasheet(PDF) 1 Page - Maxim Integrated Products |
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MAX5407 Datasheet(HTML) 1 Page - Maxim Integrated Products |
1 / 7 page General Description The MAX5407 SOT-PoT™ is a logarithmic taper digital potentiometer with 32 tap points that has 1dB steps between taps. This device is ideal for audio applica- tions, such as volume control and fading/balancing audio signals. The MAX5407 consists of a resistor string and CMOS switches that are digitally controlled through a simple 2- wire serial interface. This device performs the same function as a mechanical potentiometer. The device has a fixed end-to-end resistance of 20k Ω and features zero-crossing detection to minimize the audible noise generated by the wiper transitions. This device has nominal resistor temperature coefficients of 35ppm/°C end-to-end and 5ppm/°C ratiometric. The MAX5407 is available in a space saving 8-pin SOT23 package and is guaranteed from -40°C to +85°C. Applications Audio Volume Control Fading/Balancing Audio Signals Mechanical Potentiometer Replacement Features o Miniature 3mm x 3mm 8-Pin SOT23 Package o Logarithmic Taper with 1dB Steps Between Taps o 32 Tap Positions o Low 0.35µA Supply Current o +2.7V to +5.5V Single-Supply Operation o Zero-Crossing Detection to Minimize Audible Clicks During Wiper Transitions o Simple Up/Down 2-Wire Serial Data Interface o Power-On Reset Wiper Goes To Maximum Attenuation (Lowest Tap Position) o 20kΩ End-to-End Resistance 32-Tap Audio Logarithmic Taper Digital Potentiometer ________________________________________________________________ Maxim Integrated Products 1 TOP VIEW 1 2 3 4 8 7 6 5 ZCEN VDD CS U/D L W GND H MAX5407 SOT23 Pin Configuration Ordering Information UP/DOWN COUNTER VDD GND CS H L W U/D ZCEN 32-POSITION DECODER MAX5407 Functional Diagram 19-2196; Rev 0; 10/01 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. PART TEMP. RANGE PIN- PACKAGE TOP MARK MAX5407EKA -40 °C to +85°C 8 SOT23 AAID SOT-PoT is a trademark of Maxim Integrated Products, Inc. |
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