MCP40D17T-104E/LT

Product Overview

Category

The MCP40D17T-104E/LT belongs to the category of digital potentiometers.

Use

It is primarily used for electronic circuitry and control systems where variable resistance is required.

Characteristics

• Digital control interface
• Wide resistance range
• Low power consumption
• High resolution
• Non-volatile memory
• Small form factor

Package

The MCP40D17T-104E/LT comes in a compact surface-mount package.

Essence

This digital potentiometer serves as a replacement for traditional mechanical potentiometers, offering greater precision and flexibility in various applications.

Packaging/Quantity

The MCP40D17T-104E/LT is typically packaged in reels or tubes and is available in large quantities for industrial production.

Specifications

• Resistance Range: 0Ω to 10kΩ
• Resolution: 8 bits (256 steps)
• Supply Voltage: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +125°C
• Interface: I2C

Detailed Pin Configuration

The MCP40D17T-104E/LT has a total of 14 pins:

1. VDD - Power supply voltage
2. VSS - Ground reference
3. SDA - Serial data input/output pin
4. SCL - Serial clock input pin
5. A0-A2 - Address selection pins
6. WP - Write protect pin
7. B - Terminal B of the potentiometer
8. W - Wiper terminal of the potentiometer
9. A - Terminal A of the potentiometer
10. VREF - Reference voltage input
11. CS - Chip select input
12. HIZ - High impedance output
13. VDD - Power supply voltage
14. VSS - Ground reference

Functional Features

• Digital control allows precise adjustment of resistance.
• Non-volatile memory retains settings even when power is disconnected.
• High resolution enables fine-grained adjustments.
• Low power consumption ensures energy efficiency.
• Wide resistance range accommodates various applications.

Advantages and Disadvantages

Advantages

• Greater precision compared to mechanical potentiometers.
• Easy integration into electronic circuits.
• Compact size saves space in designs.
• Non-volatile memory eliminates the need for recalibration.

Disadvantages

• Limited resistance range compared to some other digital potentiometers.
• Relatively higher cost compared to mechanical potentiometers.

Working Principles

The MCP40D17T-104E/LT utilizes a combination of digital control and resistive elements to adjust the resistance. The digital control interface communicates with the internal circuitry, allowing precise changes to the resistance value. The non-volatile memory ensures that the resistance setting is retained even when power is disconnected.

Detailed Application Field Plans

The MCP40D17T-104E/LT finds applications in various fields, including:

1. Audio equipment: Volume control, tone adjustment.
2. Industrial automation: Variable resistance control in machinery.
3. Automotive electronics: Sensor calibration, climate control.
4. Test and measurement instruments: Fine-tuning of signal levels.
5. Consumer electronics: User-adjustable settings in devices.

Detailed and Complete Alternative Models

1. MCP401X - Similar digital potentiometer series with different resistance ranges.
2. AD840X - Digital potentiometer series with extended resolution options.
3. MAX54XX - Digital potentiometer series with integrated EEPROM for additional features.

These alternative models offer similar functionality and can be considered as alternatives to the MCP40D17T-104E/LT.

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