DS1267-010

Product Overview

Category: Electronic Component
Use: Digital Potentiometer
Characteristics: Programmable, Non-volatile, 256 Taps
Package: SOIC-8
Essence: Adjustable Resistance
Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Resolution: 8 bits
• Resistance Range: 0Ω to 10kΩ
• Supply Voltage: 2.7V to 5.5V
• Temperature Range: -40°C to +85°C
• End-to-End Resistance Tolerance: ±20%
• Non-Volatile Memory: Yes
• Communication Interface: SPI

Detailed Pin Configuration

The DS1267-010 has a total of 8 pins arranged as follows:

1. VCC: Supply voltage input
2. GND: Ground reference
3. CS: Chip select for SPI communication
4. SCLK: Serial clock for SPI communication
5. SDI: Serial data input for SPI communication
6. SDO: Serial data output for SPI communication
7. A: Terminal A of the potentiometer
8. B: Terminal B of the potentiometer

Functional Features

• Programmable resistance allows for precise adjustment in electronic circuits.
• Non-volatile memory retains the resistance setting even when power is removed.
• SPI interface enables easy digital control and integration with microcontrollers.
• Wide operating voltage range makes it suitable for various applications.
• Compact package size allows for space-efficient PCB design.

Advantages and Disadvantages

Advantages: - Precise resistance adjustment with 256 available taps. - Non-volatile memory ensures resistance settings are retained. - Easy integration with microcontrollers through SPI interface. - Wide operating voltage range provides flexibility in different systems.

Disadvantages: - Limited resistance range of 0Ω to 10kΩ may not be suitable for all applications. - End-to-end resistance tolerance of ±20% may introduce some variability.

Working Principles

The DS1267-010 is a digital potentiometer that utilizes a series of resistive elements and switches to create an adjustable resistance. It operates based on the principle of dividing the total resistance into smaller segments, which can be selectively connected or disconnected using electronic switches controlled by the SPI interface. By changing the configuration of these switches, the effective resistance between terminals A and B can be adjusted digitally.

Detailed Application Field Plans

The DS1267-010 finds applications in various fields, including:

1. Audio Equipment: Used for volume control and tone adjustment in audio amplifiers and mixers.
2. Industrial Automation: Provides programmable resistance for calibration and control purposes.
3. Test and Measurement Instruments: Enables precise resistance settings in testing equipment.
4. Automotive Electronics: Used in vehicle systems for sensor calibration and control circuits.
5. Consumer Electronics: Integrated into devices like TVs, gaming consoles, and home appliances.

Detailed and Complete Alternative Models

1. DS1804-010: Similar digital potentiometer with 256 taps and non-volatile memory.
2. MCP4131-103: Digital potentiometer with 10kΩ resistance range and SPI interface.
3. MAX5486: Programmable resistor with 8-bit resolution and I²C communication.

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