DS1848B-C50+T&R

Product Overview

• Category: Electronic Component
• Use: Digital Potentiometer
• Characteristics: Programmable, Non-volatile, 50kΩ Resistance Range
• Package: T&R (Tape and Reel)
• Essence: The DS1848B-C50+T&R is a digital potentiometer that allows for programmable resistance values. It is non-volatile, meaning it retains its programmed settings even when power is removed. With a resistance range of 50kΩ, it can be used in various applications requiring precise resistance adjustments.
• Packaging/Quantity: The DS1848B-C50+T&R is packaged in tape and reel format, which facilitates automated assembly processes. Each reel contains a specific quantity of digital potentiometers.

Specifications

• Resistance Range: 50kΩ
• Resolution: 256 Steps
• Interface: I2C
• Supply Voltage: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Non-volatile Memory: Yes
• Wiper Current: 1mA (maximum)

Pin Configuration

The DS1848B-C50+T&R has the following pin configuration:

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| | | 1 2 3 | | | | 4 5 6 | | | | 7 8 9 | |_______________| ```

1. VCC: Supply Voltage
2. SDA: I2C Serial Data
3. SCL: I2C Serial Clock
4. A0: Address Bit 0
5. A1: Address Bit 1
6. WP: Write Protect
7. VSS: Ground
8. W: Wiper Terminal
9. H: High Terminal

Functional Features

• Programmable resistance allows for precise adjustment in various applications.
• Non-volatile memory retains programmed settings even when power is removed.
• I2C interface enables easy integration with microcontrollers and other digital systems.
• Wide operating temperature range makes it suitable for both industrial and consumer applications.
• Write protect feature prevents accidental changes to the programmed resistance value.

Advantages and Disadvantages

Advantages: - Precise resistance adjustment - Retains settings without power - Easy integration with digital systems - Suitable for a wide range of applications - Write protect feature prevents accidental changes

Disadvantages: - Limited resistance range (50kΩ) - Requires I2C interface support

Working Principles

The DS1848B-C50+T&R operates based on the principle of digitally controlled potentiometers. It consists of a resistive element with a wiper terminal that can be moved digitally to adjust the effective resistance. The resistance value is programmed using the I2C interface, and the non-volatile memory ensures that the programmed value is retained even when power is removed. The wiper terminal connects to the desired point along the resistive element, allowing for precise resistance adjustments.

Detailed Application Field Plans

The DS1848B-C50+T&R can be used in various applications where precise resistance adjustments are required. Some potential application fields include:

1. Audio Equipment: Adjusting volume levels, tone control, and equalization circuits.
2. Industrial Control Systems: Calibration of sensors, variable gain amplifiers, and feedback circuits.
3. Test and Measurement Instruments: Fine-tuning signal generators, attenuators, and filters.
4. Consumer Electronics: Brightness control in displays, temperature control in appliances, and motor speed control.

Detailed and Complete Alternative Models

1. DS1848A-C50+T&R: Similar to DS1848B-C50+T&R but with a different pin configuration.
2. DS1868B-C50+T&R: Digital potentiometer with multiple channels for simultaneous adjustment of multiple resistances.
3. DS1804C-C50+T&R: Non-volatile digital potentiometer with a lower resistance range (10kΩ).

These alternative models offer similar functionality but may have different specifications or pin configurations to suit specific application requirements.

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