DS1803E-50+T&R

Basic Information Overview

• Category: Electronic Component
• Use: Digital Potentiometer
• Characteristics:
  • High precision and resolution
  • Wide operating voltage range
  • Low power consumption
  • Compact package size
• Package: T&R (Tape and Reel)
• Essence: Adjustable resistor for electronic circuits
• Packaging/Quantity: 2500 units per reel

Specifications

• Resistance Range: 0Ω to 50kΩ
• Resolution: 256 steps
• Operating Voltage Range: 2.7V to 5.5V
• Temperature Range: -40°C to +85°C
• Power Supply Current: 1µA (typical)
• Package Type: SOT23-8

Detailed Pin Configuration

The DS1803E-50+T&R has a total of 8 pins arranged as follows:

```

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| | | U | |___________|

Pin Configuration:

1. VCC
2. GND
3. UP/DN
4. INC
5. CS
6. W
7. B
8. A ```

Functional Features

• Digital control of resistance value
• Non-volatile memory for storing settings
• Incremental and decremental adjustment modes
• Serial interface for easy integration with microcontrollers
• Low power consumption for energy-efficient applications

Advantages and Disadvantages

Advantages

• High precision and resolution allow for fine adjustments in circuit parameters.
• Wide operating voltage range enables compatibility with various power supply systems.
• Low power consumption prolongs battery life in portable devices.
• Compact package size saves space on PCBs.

Disadvantages

• Limited resistance range may not be suitable for applications requiring higher values.
• Temperature range may restrict usage in extreme environments.

Working Principles

The DS1803E-50+T&R is a digital potentiometer that replaces traditional mechanical potentiometers. It consists of a resistive element and electronic switches controlled by digital signals. When the control signals are applied, the resistance value changes accordingly. The non-volatile memory ensures that the resistance setting is retained even when power is removed.

Detailed Application Field Plans

The DS1803E-50+T&R finds applications in various electronic systems, including: 1. Audio equipment: Volume control, tone adjustment 2. Industrial automation: Calibration, feedback control 3. Test and measurement instruments: Signal conditioning, calibration 4. Consumer electronics: Display brightness control, user interface settings 5. Automotive electronics: Climate control, motor speed control

Detailed and Complete Alternative Models

1. DS1802E-50+T&R: Similar specifications with a different package type (SOIC-8).
2. MCP4017T-503E/ML: Digital potentiometer with similar resistance range and resolution.
3. AD8403ARZ10: 4-channel digital potentiometer with extended temperature range.

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