DS1809-050+ English Editing Encyclopedia Entry

Product Overview

Category: Electronic Component
Use: Digital Potentiometer
Characteristics: Programmable, Non-volatile, Dual-channel
Package: SOIC-8
Essence: Integrated Circuit
Packaging/Quantity: Tape & Reel / 2500 units per reel

Specifications

• Resistance Range: 0Ω to 50kΩ
• Resolution: 256 Steps
• 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: 1mA (maximum)
• Power Consumption: 1µA (standby), 3mA (active)

Detailed Pin Configuration

The DS1809-050+ has a total of 8 pins arranged as follows:

```

---

| | | U1 | |___________|

Pin Configuration:

  1  2  3  4
 ___________
|           |

8| |5 |___________|

  7  6

```

Pin Description: 1. VCC: Supply Voltage 2. SDA: Serial Data Input/Output 3. SCL: Serial Clock Input 4. A0: Address Input 5. B0: Address Input 6. B1: Address Input 7. A1: Address Input 8. GND: Ground

Functional Features

• Dual-channel digital potentiometer with non-volatile memory
• Allows programmable resistance adjustment through serial interface
• Provides 256 steps of resolution for precise control
• Wide operating voltage range for compatibility with various systems
• Low power consumption in both active and standby modes
• Integrated non-volatile memory retains settings even when powered off

Advantages and Disadvantages

Advantages: - Programmable resistance allows for flexible adjustment in electronic circuits - Non-volatile memory ensures settings are retained during power cycles - Dual-channel design enables independent control of two separate circuits - Wide operating voltage range enhances compatibility with different systems

Disadvantages: - End-to-end resistance tolerance of ±20% may limit precision in some applications - Limited resolution of 256 steps may not be sufficient for highly precise adjustments

Working Principles

The DS1809-050+ is a digital potentiometer that utilizes integrated circuit technology. It consists of two channels, each providing programmable resistance adjustment. The resistance value is controlled through a serial interface using the SDA (Serial Data Input/Output) and SCL (Serial Clock Input) pins. The potentiometer's non-volatile memory ensures that the resistance settings are retained even when the power is turned off.

Detailed Application Field Plans

The DS1809-050+ finds applications in various fields, including: 1. Audio Equipment: Volume control, tone adjustment, and equalization circuits. 2. Industrial Automation: Precision control of motor speed, position, and process parameters. 3. Test and Measurement Instruments: Calibration and fine-tuning of signal generators, oscilloscopes, and data acquisition systems. 4. Communication Systems: Signal conditioning, gain control, and impedance matching circuits. 5. Automotive Electronics: Climate control, lighting intensity adjustment, and sensor calibration.

Detailed and Complete Alternative Models

1. DS1809-010+: Similar to DS1809-050+, but with a resistance range of 0Ω to 10kΩ.
2. DS1809-100+: Similar to DS1809-050+, but with a resistance range of 0Ω to 100kΩ.
3. DS1809-500+: Similar to DS1809-050+, but with a resistance range of 0Ω to 500kΩ.
4. DS1809-1K+: Similar to DS1809-050+, but with a resistance range of 0Ω to 1MΩ.

These alternative models provide different resistance ranges to suit specific application requirements.

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