MAX5487ETE+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital Potentiometer
• Characteristics: High precision, low power consumption
• Package: TDFN (Thin Dual Flat No-Lead) package
• Essence: Provides digital control of resistance values
• Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

• Resolution: 256 taps
• Resistance Range: 10 kΩ to 100 kΩ
• Supply Voltage: 2.7 V to 5.5 V
• Temperature Range: -40°C to +85°C
• Interface: I2C-compatible
• Power Consumption: 0.4 µA in shutdown mode, 1.6 mA in active mode

Pin Configuration

The MAX5487ETE+T has a total of 16 pins. The pin configuration is as follows:

1. VDD: Positive supply voltage
2. SDA: Serial data input/output for I2C communication
3. SCL: Serial clock input for I2C communication
4. GND: Ground
5. A0: Address bit 0
6. A1: Address bit 1
7. A2: Address bit 2
8. NC: No connection
9. W: Wiper terminal of the potentiometer
10. B: Terminal connected to one end of the potentiometer
11. R: Terminal connected to the other end of the potentiometer
12. NC: No connection
13. NC: No connection
14. NC: No connection
15. NC: No connection
16. NC: No connection

Functional Features

• Digital control of resistance values
• Non-volatile memory for storing wiper position
• Low temperature coefficient ensures stability over a wide temperature range
• Low power consumption extends battery life in portable applications
• I2C interface allows easy integration with microcontrollers

Advantages and Disadvantages

Advantages

• High precision and resolution
• Wide resistance range
• Small package size for space-constrained designs
• Non-volatile memory eliminates the need for external storage
• Low power consumption extends battery life

Disadvantages

• Limited number of taps compared to some other digital potentiometers
• Requires I2C communication for control, which may add complexity to the system

Working Principles

The MAX5487ETE+T is a digital potentiometer that uses a combination of resistive elements and electronic switches to achieve variable resistance. The wiper terminal can be digitally controlled through the I2C interface, allowing precise adjustment of the resistance value. The non-volatile memory ensures that the wiper position is retained even when power is removed.

Detailed Application Field Plans

The MAX5487ETE+T finds applications in various fields, including:

1. Audio Equipment: Volume control, tone adjustment
2. Instrumentation: Calibration, signal conditioning
3. Industrial Control Systems: Variable gain amplifiers, motor speed control
4. Communication Systems: Signal attenuation, impedance matching
5. Automotive Electronics: Climate control, lighting control

Detailed and Complete Alternative Models

1. MAX5486ETE+T: Similar specifications, but with a different resistance range (1 kΩ to 10 kΩ)
2. MAX5488ETE+T: Higher resolution (1024 taps) and wider resistance range (100 Ω to 1 MΩ)
3. MCP4017T-503E/LT: Comparable specifications, available in a different package (SOT-23)

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