Maxim Integrated
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DS1808Z-050+
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DS1808Z-050+ Product Overview

Basic Information

Category: Electronic Component
Use: Digital Potentiometer
Characteristics: Programmable, Non-volatile, 50kΩ Resistance
Package: SOIC-8
Essence: Adjustable Resistance Device
Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

  • Resistance: 50kΩ
  • Number of Taps: 256
  • Interface: Serial (I2C)
  • Supply Voltage: 2.7V to 5.5V
  • Temperature Range: -40°C to +85°C
  • End-to-End Resistance Tolerance: ±20%
  • Resistor Network Temperature Coefficient: ±500ppm/°C
  • Standby Current: 1μA (typical)
  • Wiper Current: 3mA (maximum)

Detailed Pin Configuration

The DS1808Z-050+ features an SOIC-8 package with the following pin configuration:

  1. VCC: Supply Voltage
  2. SDA: Serial Data Input/Output
  3. SCL: Serial Clock Input
  4. GND: Ground
  5. NC: No Connection
  6. A0: Address Bit 0
  7. A1: Address Bit 1
  8. WP: Write Protect

Functional Features

  • Programmable digital potentiometer with non-volatile memory
  • Allows adjustment of resistance digitally through I2C interface
  • Provides precise and reliable resistance settings
  • Retains resistance value even when power is disconnected
  • Low standby current for power efficiency
  • Wide operating temperature range for versatile applications

Advantages and Disadvantages

Advantages: - Easy digital control of resistance - Non-volatile memory ensures resistance retention - High precision and reliability - Wide operating temperature range - Low standby current for power efficiency

Disadvantages: - Limited resistance tolerance of ±20% - Relatively high wiper current compared to some alternatives

Working Principles

The DS1808Z-050+ is a digital potentiometer that utilizes a resistor network and electronic switches controlled by an I2C interface. The resistance value can be adjusted digitally by sending commands through the serial data input/output (SDA) and serial clock input (SCL) pins. The non-volatile memory ensures that the resistance setting is retained even when power is disconnected.

Detailed Application Field Plans

The DS1808Z-050+ finds applications in various fields, including:

  1. Audio Equipment: Volume control, tone adjustment
  2. Industrial Automation: Calibration, signal conditioning
  3. Test and Measurement Instruments: Programmable resistance loads, calibration standards
  4. Communication Systems: Signal attenuation, impedance matching
  5. Automotive Electronics: Sensor calibration, control systems

Detailed and Complete Alternative Models

  1. MCP401X: Microchip Technology
  2. AD524X: Analog Devices
  3. MAX548X: Maxim Integrated
  4. X9CXXX: Intersil Corporation
  5. CAT511X: ON Semiconductor

These alternative models offer similar functionality and can be considered as alternatives to the DS1808Z-050+ depending on specific requirements.

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Liste 10 almindelige spørgsmål og svar relateret til anvendelsen af DS1808Z-050+ i tekniske løsninger

Sure! Here are 10 common questions and answers related to the application of DS1808Z-050+ in technical solutions:

  1. Question: What is DS1808Z-050+?
    - Answer: DS1808Z-050+ is a digital potentiometer IC (integrated circuit) manufactured by Maxim Integrated. It is used for digitally controlling resistance in various electronic circuits.

  2. Question: What is the maximum resistance range of DS1808Z-050+?
    - Answer: The maximum resistance range of DS1808Z-050+ is 50 kilohms (kΩ).

  3. Question: How can DS1808Z-050+ be controlled digitally?
    - Answer: DS1808Z-050+ can be controlled using a microcontroller or any other digital control interface that supports I2C communication protocol.

  4. Question: What are some typical applications of DS1808Z-050+?
    - Answer: DS1808Z-050+ is commonly used in audio systems, instrumentation, industrial control systems, and other applications where precise resistance control is required.

  5. Question: Can DS1808Z-050+ replace traditional mechanical potentiometers?
    - Answer: Yes, DS1808Z-050+ can be used as a replacement for mechanical potentiometers, offering advantages such as digital control, smaller size, and higher reliability.

  6. Question: Does DS1808Z-050+ require external power supply?
    - Answer: Yes, DS1808Z-050+ requires an external power supply typically ranging from 2.7V to 5.5V.

  7. Question: Is DS1808Z-050+ compatible with both analog and digital signals?
    - Answer: Yes, DS1808Z-050+ can handle both analog and digital signals, making it versatile for various applications.

  8. Question: Can DS1808Z-050+ be used in high-frequency applications?
    - Answer: Yes, DS1808Z-050+ can be used in high-frequency applications as it has a wide bandwidth and low distortion characteristics.

  9. Question: Does DS1808Z-050+ have non-volatile memory?
    - Answer: No, DS1808Z-050+ does not have non-volatile memory. It requires external storage or microcontroller to retain settings across power cycles.

  10. Question: What is the package type of DS1808Z-050+?
    - Answer: DS1808Z-050+ is available in an 8-pin SOIC (Small Outline Integrated Circuit) package.

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