Maxim Integrated
Bild kan vara representation.
Se specifikationer för produktinformation.
DS1804-050+
Visa detalj Datablad

DS1804-050+ English Editing Encyclopedia Entry

Product Overview

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

Specifications

  • Resistance Range: 50kΩ
  • Resolution: 64 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: 1μA (typical)
  • Digital Interface: SPI-compatible

Detailed Pin Configuration

The DS1804-050+ has a standard SOIC-8 package with the following pin configuration:

| Pin No. | Pin Name | Description | |---------|----------|-------------| | 1 | VCC | Supply Voltage | | 2 | CS | Chip Select (Active Low) | | 3 | SCLK | Serial Clock Input | | 4 | SI | Serial Data Input | | 5 | SO | Serial Data Output | | 6 | WP | Write Protect (Active High) | | 7 | GND | Ground | | 8 | H | Terminal A of Potentiometer |

Functional Features

  • Programmable digital potentiometer with non-volatile memory
  • Allows adjustment of resistance in 64 steps
  • Wide supply voltage range for versatile applications
  • Temperature range suitable for various environments
  • SPI-compatible digital interface for easy integration
  • Write protect feature to prevent accidental changes

Advantages and Disadvantages

Advantages: - Non-volatile memory retains settings even when power is lost - Precise resistance adjustment with 64 steps - Wide supply voltage range allows compatibility with different systems - Compact SOIC-8 package for space-constrained designs

Disadvantages: - End-to-end resistance tolerance of ±20% may limit precision in some applications - Limited resolution compared to higher-end digital potentiometers

Working Principles

The DS1804-050+ is a digital potentiometer that utilizes a series of resistive elements to provide adjustable resistance. It operates based on the principle of changing the position of a wiper along the resistive element, effectively altering the resistance value between the wiper terminal and one of the end terminals. The digital interface allows precise control over the wiper position, enabling fine-grained resistance adjustments.

Detailed Application Field Plans

The DS1804-050+ finds applications in various fields, including: 1. Audio Equipment: Volume control, tone adjustment 2. Industrial Control Systems: Calibration, signal conditioning 3. Test and Measurement Instruments: Variable gain amplifiers, programmable filters 4. Consumer Electronics: Display brightness control, user interface settings

Detailed and Complete Alternative Models

  1. DS1804-100+: 100kΩ resistance range, similar specifications
  2. DS1804-010+: 10kΩ resistance range, similar specifications
  3. DS1804-025+: 25kΩ resistance range, similar specifications

These alternative models offer different resistance ranges while maintaining similar functionality and characteristics to the DS1804-050+.

Word count: 420 words

Lista 10 Vanliga frågor och svar relaterade till tillämpningen av DS1804-050+ i tekniska lösningar

Sure! Here are 10 common questions and answers related to the application of DS1804-050+ in technical solutions:

  1. Q: What is DS1804-050+? A: DS1804-050+ is a digital potentiometer IC (integrated circuit) manufactured by Maxim Integrated. It is used for digitally controlling resistance in various electronic circuits.

  2. Q: What is the maximum resistance range of DS1804-050+? A: The DS1804-050+ has a maximum resistance range of 50 kilohms.

  3. Q: How can I control the resistance using DS1804-050+? A: The resistance of DS1804-050+ can be controlled digitally through an SPI (Serial Peripheral Interface) or I2C (Inter-Integrated Circuit) bus.

  4. Q: Can DS1804-050+ be used as a volume control in audio applications? A: Yes, DS1804-050+ can be used as a volume control in audio applications by adjusting the resistance in the audio signal path.

  5. Q: Is DS1804-050+ suitable for use in low-power applications? A: Yes, DS1804-050+ is designed for low-power applications and operates at a low supply voltage.

  6. Q: Can DS1804-050+ be used in battery-powered devices? A: Yes, DS1804-050+ can be used in battery-powered devices due to its low power consumption.

  7. Q: Does DS1804-050+ have non-volatile memory? A: Yes, DS1804-050+ has non-volatile memory, which means it retains its settings even when power is removed.

  8. Q: Can DS1804-050+ be used for digital calibration in measurement instruments? A: Yes, DS1804-050+ can be used for digital calibration in measurement instruments by adjusting the resistance to fine-tune the output.

  9. Q: Is DS1804-050+ compatible with microcontrollers and other digital devices? A: Yes, DS1804-050+ is compatible with microcontrollers and other digital devices that support SPI or I2C communication protocols.

  10. Q: Are there any specific precautions to consider when using DS1804-050+? A: It is important to ensure that the supply voltage and current limits of DS1804-050+ are not exceeded. Additionally, proper decoupling capacitors should be used to minimize noise and ensure stable operation.

Please note that these answers are general and may vary depending on the specific application and requirements.