DS1803Z-050/T&R

Product Overview

Category

The DS1803Z-050/T&R belongs to the category of digital potentiometers.

Use

It is primarily used for electronic circuitry and systems that require variable resistance or volume control.

Characteristics

• Digital control interface
• Non-volatile memory
• Low power consumption
• Wide operating voltage range
• Compact package size

Package

The DS1803Z-050/T&R is available in a small surface-mount package.

Essence

This product serves as a replacement for traditional mechanical potentiometers, offering precise and reliable resistance adjustment.

Packaging/Quantity

The DS1803Z-050/T&R is typically packaged on tape and reel, with a quantity of 250 units per reel.

Specifications

• Resistance Range: 0Ω to 50kΩ
• Number of Channels: 2
• Resolution: 256 steps
• Operating Voltage Range: 2.7V to 5.5V
• Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The DS1803Z-050/T&R has a total of 8 pins:

1. VCC: Power supply voltage input
2. GND: Ground reference
3. SDA: Serial data input/output
4. SCL: Serial clock input
5. A0: Address bit 0
6. A1: Address bit 1
7. W: Write protect input
8. B: Terminal B of the potentiometer

Functional Features

• Digital control allows for precise resistance adjustment.
• Non-volatile memory retains settings even when power is disconnected.
• Low power consumption makes it suitable for battery-powered devices.
• Wide operating voltage range enables compatibility with various systems.
• Compact package size saves board space in electronic designs.

Advantages and Disadvantages

Advantages

• Precise and reliable resistance adjustment
• Non-volatile memory for retaining settings
• Low power consumption
• Wide operating voltage range
• Compact package size

Disadvantages

• Limited resistance range (up to 50kΩ)
• Limited resolution (256 steps)

Working Principles

The DS1803Z-050/T&R utilizes digital control to adjust the resistance. It consists of a series of resistive elements connected in a ladder configuration. By controlling the switches between these elements, the effective resistance can be varied digitally.

Detailed Application Field Plans

The DS1803Z-050/T&R finds applications in various electronic systems, including: 1. Audio equipment: Volume control in amplifiers, mixers, and audio receivers. 2. Industrial automation: Variable resistance in motor speed control circuits. 3. Test and measurement instruments: Calibration and fine-tuning of signal generators and oscilloscopes. 4. Consumer electronics: Brightness control in displays and backlighting.

Detailed and Complete Alternative Models

1. MCP401X: Microchip Technology's digital potentiometer series with similar specifications.
2. MAX548X: Maxim Integrated's digital potentiometer series offering higher resolution options.
3. AD840X: Analog Devices' digital potentiometer series with extended resistance range.

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