MAX5161NEZT+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital Potentiometer
• Characteristics: Low-power, non-volatile, 256-tap, I2C interface
• Package: SOT-23-6
• Essence: Programmable resistor with digital control
• Packaging/Quantity: Tape and Reel, 3000 pieces per reel

Specifications

• Resolution: 8-bit
• Supply Voltage Range: 2.7V to 5.5V
• Temperature Range: -40°C to +85°C
• Resistance Tolerance: ±20%
• End-to-End Resistance Range: 10kΩ
• I2C Bus Speed: Up to 400kHz
• Standby Current: 1µA (typical)

Detailed Pin Configuration

The MAX5161NEZT+T has a total of six pins arranged as follows:

```

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| | --| VCC SDA |-- --| GND SCL |-- --| A0 WP |-- |___________| ```

• VCC: Power supply pin (+2.7V to +5.5V)
• GND: Ground pin
• SDA: Serial Data Input/Output pin (I2C bus)
• SCL: Serial Clock Input pin (I2C bus)
• A0: Address Select Input pin (used for device addressing)
• WP: Write Protect Input pin (protects against accidental writes)

Functional Features

• Non-volatile memory stores wiper position during power-off
• 256 tap points provide fine resolution adjustment
• I2C interface allows easy digital control
• Low standby current ensures power efficiency
• Wide temperature range enables versatile applications

Advantages and Disadvantages

Advantages: - Non-volatile memory preserves settings - High resolution for precise adjustments - Easy digital control through I2C interface - Low power consumption in standby mode - Suitable for a wide range of temperatures

Disadvantages: - Limited resistance tolerance of ±20% - Single-ended configuration only - Requires external pull-up resistors for I2C bus

Working Principles

The MAX5161NEZT+T is a digital potentiometer that replaces traditional mechanical potentiometers. It consists of a resistor network and a digital control circuit. The wiper position is controlled digitally through the I2C interface, allowing precise adjustment of resistance. The non-volatile memory ensures that the wiper position is retained even when power is removed.

Detailed Application Field Plans

The MAX5161NEZT+T finds applications in various fields, including:

1. Audio Equipment: Volume control, tone adjustment
2. Industrial Control Systems: Calibration, feedback control
3. Test and Measurement Instruments: Fine adjustment, signal conditioning
4. Consumer Electronics: Display brightness control, user interface settings
5. Automotive Electronics: Climate control, sensor calibration

Detailed and Complete Alternative Models

1. MCP401X: Microchip Technology, Inc.
2. AD525X: Analog Devices, Inc.
3. DS180X: Maxim Integrated Products, Inc.
4. X9CXXX: Intersil Corporation
5. CAT51XX: ON Semiconductor

These alternative models offer similar functionality and can be considered as substitutes for the MAX5161NEZT+T.

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