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Part Number: MAX5407
Description: The MAX5407 SOT-PoT™ is a logarithmic taper digital potentiometer with 32 tap points that has 1d...
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MAX5407
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General Description
MAX5407 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 applications, 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 20kΩ 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.
MAX5407 Maximum Ratings
VDD to GND..............................................................-0.3V to +6V
H, W, L, CS, ZCEN, and U/D to GND............-0.3V to (VDD + 0.3V)
Input and Output Latchup Immunity.............................±200mA
Maximum Continuous Current into H, L, and W ............±500µA
Continuous Power Dissipation (TA = +70°C)
8-Pin SOT23-8 (derate 8.9mW/°C above +70°C) ........714mW
Operating Temperature Range .......................-40°C to +85°C
Junction Temperature....................................................+150°C
Storage Temperature Range .........................-65°C to +150°C
Soldering Temperature (soldering, 10s) ........................+300°C
H, W, L, CS, ZCEN, and U/D to GND............-0.3V to (VDD + 0.3V)
Input and Output Latchup Immunity.............................±200mA
Maximum Continuous Current into H, L, and W ............±500µA
Continuous Power Dissipation (TA = +70°C)
8-Pin SOT23-8 (derate 8.9mW/°C above +70°C) ........714mW
Operating Temperature Range .......................-40°C to +85°C
Junction Temperature....................................................+150°C
Storage Temperature Range .........................-65°C to +150°C
Soldering Temperature (soldering, 10s) ........................+300°C
MAX5407 Features
Miniature 3mm x 3mm 8-Pin SOT23 Package
Logarithmic Taper with 1dB Steps Between Taps
32 Tap Positions
Low 0.35µA Supply Current
+2.7V to +5.5V Single-Supply Operation
Zero-Crossing Detection to Minimize Audible Clicks During Wiper Transitions
Simple Up/Down 2-Wire Serial Data Interface
Power-On Reset Wiper Goes To Maximum Attenuation (Lowest Tap Position)
20kΩ End-to-End Resistance
Logarithmic Taper with 1dB Steps Between Taps
32 Tap Positions
Low 0.35µA Supply Current
+2.7V to +5.5V Single-Supply Operation
Zero-Crossing Detection to Minimize Audible Clicks During Wiper Transitions
Simple Up/Down 2-Wire Serial Data Interface
Power-On Reset Wiper Goes To Maximum Attenuation (Lowest Tap Position)
20kΩ End-to-End Resistance
MAX5407 Typical Application
Audio Volume Control
Fading/Balancing Audio Signals
Mechanical Potentiometer Replacement
Fading/Balancing Audio Signals
Mechanical Potentiometer Replacement
MAX5407 Connection Diagram
MAX5407
PDF/DataSheet Download
- Datasheet: MAX5407
- File Size: 156984 KB
- Manufacturer: MAXIM [Maxim Integrated Products]
- Click here to Download
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