MAX5475
32-Tap, Nonvolatile, Linear-Taper Digital Potentiometers in SOT23
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Industry's First 32-Tap, Nonvolatile Digital Potentiometers in a SOT23 have Ultra-Low Temperature Drift
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Features
- Wiper Position Stored in Nonvolatile Memory and Recalled Upon Power-Up
- Tiny SOT23 Package
- 35ppm/°C End-to-End Resistance Temperature Coefficient
- 5ppm/°C Ratiometric Temperature Coefficient
- 32 Tap Positions
- Voltage-Divider or Variable-Resistor Potentiometer Configuration
- 50kΩ and 100kΩ End-to-End Resistance Values
- 1µA (max) Static Supply Current
- 2.7V to 5.25V Single-Supply Operation
- 200,000 Wiper Store Cycles
- 50-Year Wiper Data Retention
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The MAX5471/MAX5472/MAX5474/MAX5475 linear-taper digital potentiometers function as mechanical potentiometers, but replace the mechanics with a simple 3-wire up/down digital interface. 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, and the MAX5472/MAX5475 have an end-to-end resistance of 100kΩ. All of these devices have 32 wiper positions, a low ratiometric temperature coefficient (5ppm/°C), and all operate from a single +2.7V to +5.25V supply. Each device is guaranteed over the extended -40°C to +85°C temperature range.
Applications
- Audio Volume Control
- Liquid-Crystal Display (LCD) Screen Adjustment
- Mechanical Potentiometer Replacements
- Programmable Filters
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MAX5475
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Data Sheet
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MAX5471-MAX5475: 32-Tap, Nonvolatile, Linear-Taper Digital Potentiometers in SOT23 Data Sheet (Rev.1)
Reliability Data
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35.65K
Documentation
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| MAX5475EKA+ |
Small-Outline Transistor Package
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| MAX5475EKA+T |
Small-Outline Transistor Package
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- MAX5475EKA+
- Pin/Package Drawing
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Small-Outline Transistor Package
- Documentation
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HTML
Material Declaration
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HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
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Ultra Librarian
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SamacSys
- MAX5475EKA+T
- Pin/Package Drawing
-
Small-Outline Transistor Package
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
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Product Lifecycle
PCN
Nov 1, 2021
- 2209
ASSEMBLY
MAX5475EKA+
PRODUCTION
MAX5475EKA+T
PRODUCTION
Filter by Model
Part Models
Product Lifecycle
PCN
Nov 1, 2021
- 2209
ASSEMBLY
Evaluation Kits 1
MAX5474EVKIT
Evaluation Kit for the MAX5474
Features and Benefits
- 2.7V to 5.25V Single-Supply Operation
- Power-On Recall of Wiper Position from Nonvolatile Memory
- On-Board USB Interface Circuit
- USB Powered
- USB-PC Connection (Cable Included)
- Stand-Alone Operation Using On-Board Switches
- PCB Pads for User-Supplied Microcontroller Interface Signals
- PCB Pads for Potentiometer Signals (L, W, H)
- Proven USB-Compatible PCB Layout
- Evaluates the MAX5474/MAX5475 in 8-Pin SOT23 Package
- Windows 2000/XP/Vista (32-Bit)-Compatible Software
- Fully Assembled and Tested
Product Detail
The MAX5474 evaluation kit (EV kit) is an assembled and tested printed-circuit board (PCB) that evaluates the MAX5474 IC. The MAX5474 is a 32-tap, 50kΩ nonvolatile, linear-taper digital potentiometer. Windows® 2000/XP/Vista-compatible software is available to provide a convenient user interface for exercising the MAX5474 features.
The MAX5474 EV kit provides three options to control the MAX5474 wiper position using logic-input signals. The MAX5474 logic-input signals can be controlled by an on-board USB interface circuit, PCB interfacing pads, or switches on the EV kit circuit for stand-alone operation.
The EV kit can operate from a 3.3V source generated from the USB interface circuit or from a 2.7V to 5.25V external DC power supply. The EV kit can also evaluate the MAX5475 (100kΩ) after IC replacement (U1).
Applications
- Audio Volume Control
- Liquid-Crystal Display (LCD) Screen Adjustment
- Mechanical Potentiometer Replacements
- Programmable Filters