DS1844S-010+ - English Editing Encyclopedia Entry

Product Overview

Category: Electronic Component
Use: Digital Potentiometer
Characteristics: Programmable, Non-volatile, 10kΩ Resistance Range
Package: SOIC-8
Essence: Adjustable Resistance Device
Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

• Resistance Range: 10kΩ
• Number of Taps: 256
• Supply Voltage: 2.7V to 5.5V
• Temperature Range: -40°C to +85°C
• End-to-End Resistance Tolerance: ±20%
• Non-Volatile Memory: Yes
• Wiper Current: 1µA (typical)
• Package Type: SOIC-8

Detailed Pin Configuration

The DS1844S-010+ digital potentiometer has the following pin configuration:

1. VCC - Power supply voltage input
2. GND - Ground reference
3. SDA - Serial data input/output
4. SCL - Serial clock input
5. WP - Write protect input
6. H/L - High/Low terminal for resistance adjustment
7. A - Terminal A for resistance adjustment
8. B - Terminal B for resistance adjustment

Functional Features

• Programmable resistance adjustment through serial interface
• Non-volatile memory retains settings even when power is disconnected
• Wide operating voltage range allows compatibility with various systems
• High resolution with 256 taps enables precise resistance control
• Low wiper current ensures minimal power consumption

Advantages and Disadvantages

Advantages: - Easy integration into electronic circuits - Precise resistance adjustment for fine-tuning applications - Non-volatile memory eliminates the need for constant reprogramming - Low power consumption

Disadvantages: - Limited resistance range of 10kΩ - End-to-end resistance tolerance of ±20% may not be suitable for high-precision applications

Working Principles

The DS1844S-010+ digital potentiometer operates by adjusting the resistance between terminals A and B based on the control signals received through the serial interface. The resistance value is stored in non-volatile memory, allowing it to retain the set value even when power is disconnected. This programmable feature enables precise resistance adjustment for various applications.

Detailed Application Field Plans

The DS1844S-010+ digital potentiometer finds applications in a wide range of fields, including:

1. Audio Equipment: Volume control, tone adjustment
2. Instrumentation: Calibration, signal conditioning
3. Industrial Control Systems: Variable resistance control, feedback circuits
4. Communication Systems: Signal amplification, equalization
5. Automotive Electronics: Climate control, lighting intensity adjustment

Detailed and Complete Alternative Models

1. DS1804Z-010+ - Similar specifications, different package (DIP-8)
2. DS1869S-010+ - Higher resolution (1024 taps), similar specifications, same package (SOIC-8)
3. MCP4131-103E/P - Different manufacturer, similar specifications, different package (DIP-8)

Note: This list is not exhaustive and other alternative models may exist.

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