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DS1868E-100
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DS1868E-100

Product Overview

Category: Electronic Component
Use: Digital Potentiometer
Characteristics: Programmable, Dual Channel
Package: SOIC-16
Essence: Integrated Circuit
Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

  • Resolution: 256 taps
  • Resistance Range: 10kΩ
  • Supply Voltage: 2.7V to 5.5V
  • Temperature Range: -40°C to +85°C
  • Interface: I2C-compatible
  • Non-volatile Memory: Stores wiper position
  • Power-On Reset: Wiper defaults to midscale

Detailed Pin Configuration

The DS1868E-100 has a total of 16 pins arranged as follows:

  1. VCC (Positive Supply Voltage)
  2. SDA (Serial Data Input/Output)
  3. SCL (Serial Clock Input)
  4. GND (Ground)
  5. A0 (Address Bit 0)
  6. A1 (Address Bit 1)
  7. NC (No Connection)
  8. NC (No Connection)
  9. W0A (Wiper Terminal for Channel A)
  10. B0 (Terminal B for Channel A)
  11. A0 (Terminal A for Channel A)
  12. W0B (Wiper Terminal for Channel B)
  13. B1 (Terminal B for Channel B)
  14. A1 (Terminal A for Channel B)
  15. NC (No Connection)
  16. NC (No Connection)

Functional Features

  • Dual-channel digital potentiometer with independent control
  • Programmable resistance allows precise adjustment
  • Non-volatile memory retains wiper position during power cycles
  • I2C-compatible interface enables easy communication with microcontrollers
  • Power-on reset sets wiper to the midscale position

Advantages and Disadvantages

Advantages: - Dual-channel configuration provides flexibility in applications - Programmable resistance allows for precise adjustments - Non-volatile memory ensures settings are retained during power cycles - I2C-compatible interface simplifies integration with microcontrollers

Disadvantages: - Limited resolution of 256 taps may not be sufficient for some applications - Temperature range of -40°C to +85°C may restrict usage in extreme environments

Working Principles

The DS1868E-100 is a digital potentiometer that utilizes an integrated circuit to provide programmable resistance. It consists of two independent channels, each with its own wiper terminal (W), and terminal A and B connections. The resistance can be adjusted by sending commands through the I2C-compatible interface.

Upon power-on, the DS1868E-100 performs a reset, setting the wiper positions to the midscale. The non-volatile memory ensures that the wiper positions are retained even during power cycles.

Detailed Application Field Plans

The DS1868E-100 finds applications in various fields, including:

  1. Audio Equipment: Volume control, tone adjustment
  2. Industrial Automation: Calibration, fine-tuning
  3. Test and Measurement Instruments: Signal conditioning, calibration
  4. Communication Systems: Gain control, impedance matching

Detailed and Complete Alternative Models

  1. DS1804Z-010: Single-channel digital potentiometer, 10kΩ resistance, 256 taps
  2. MCP4017T-103E/LT: Dual-channel digital potentiometer, 10kΩ resistance, 257 taps
  3. MAX5486EUD+: Dual-channel digital potentiometer, 10kΩ resistance, 256 taps

These alternative models offer similar functionality and can be considered as alternatives to the DS1868E-100.

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10個與DS1868E-100在技術方案中應用相關的常見問題與解答

Sure! Here are 10 common questions and answers related to the application of DS1868E-100 in technical solutions:

  1. Q: What is DS1868E-100? A: DS1868E-100 is a digital potentiometer IC (Integrated Circuit) that can be used to digitally control resistance in electronic circuits.

  2. Q: What are the key features of DS1868E-100? A: The key features of DS1868E-100 include dual-channel operation, non-volatile memory, I²C interface, and a wide resistance range.

  3. Q: How can DS1868E-100 be used in technical solutions? A: DS1868E-100 can be used for various applications such as volume control, brightness adjustment, motor speed control, and sensor calibration.

  4. Q: What is the resistance range of DS1868E-100? A: DS1868E-100 has a resistance range of 0 to 100 kilohms.

  5. Q: Can DS1868E-100 be controlled digitally? A: Yes, DS1868E-100 can be controlled digitally using the I²C interface, allowing for precise and programmable resistance adjustments.

  6. Q: Does DS1868E-100 have non-volatile memory? A: Yes, DS1868E-100 has non-volatile memory, which means it retains its settings even when power is removed.

  7. Q: Can DS1868E-100 be used in battery-powered devices? A: Yes, DS1868E-100 can be used in battery-powered devices as it has low power consumption and supports a wide supply voltage range.

  8. Q: Is DS1868E-100 compatible with microcontrollers? A: Yes, DS1868E-100 is compatible with microcontrollers and can be easily integrated into digital control systems.

  9. Q: Can DS1868E-100 be used in audio applications? A: Yes, DS1868E-100 can be used for volume control in audio applications, allowing for precise adjustment of audio levels.

  10. Q: Are there any application notes or reference designs available for DS1868E-100? A: Yes, the manufacturer provides application notes and reference designs that can help users understand and implement DS1868E-100 in their technical solutions.

Please note that the answers provided here are general and may vary depending on specific use cases and requirements.