DS1859B-050+T&R/B

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Digital Potentiometer
• Characteristics:
  • High precision and resolution
  • Wide operating voltage range
  • Non-volatile memory for storing settings
  • Serial interface for easy control
• Package: T&R/B (Tape and Reel with Bulk Packaging)
• Essence: The DS1859B-050+T&R/B is a digital potentiometer IC designed for precise and flexible resistance adjustment in various electronic circuits.
• Packaging/Quantity: Available in tape and reel packaging, with bulk quantity options.

Specifications

• Resolution: 50 Ohms per step
• Operating Voltage Range: 2.7V to 5.5V
• Temperature Range: -40°C to +85°C
• Interface: Serial Peripheral Interface (SPI)
• Non-Volatile Memory: Stores wiper position during power-off
• Resistance Tolerance: ±20%
• Power Supply Current: 1µA (standby), 0.5mA (active)

Detailed Pin Configuration

The DS1859B-050+T&R/B has the following pin configuration:

| Pin Number | Pin Name | Description | |------------|----------|-------------| | 1 | VCC | Power supply voltage input | | 2 | GND | Ground reference | | 3 | CS | Chip select input | | 4 | SCLK | Serial clock input | | 5 | SDI | Serial data input | | 6 | SDO | Serial data output | | 7 | WP | Write protect input | | 8 | HIZ | High impedance output |

Functional Features

• Precise Resistance Adjustment: The DS1859B-050+T&R/B allows for accurate and fine-grained resistance adjustment in electronic circuits.
• Non-Volatile Memory: The IC retains the wiper position even when power is turned off, ensuring that the desired resistance setting is maintained.
• Serial Interface: The SPI interface enables easy control and integration with microcontrollers or other digital systems.
• Wide Operating Voltage Range: The IC can operate within a wide voltage range of 2.7V to 5.5V, making it suitable for various applications.

Advantages

• High Precision: The DS1859B-050+T&R/B offers high precision and resolution, allowing for precise resistance adjustment.
• Flexible Control: The serial interface provides convenient and flexible control options, making it easy to integrate into different systems.
• Non-Volatile Memory: The non-volatile memory feature ensures that the resistance settings are retained even during power-off situations.

Disadvantages

• Resistance Tolerance: The IC has a resistance tolerance of ±20%, which may limit its suitability for applications requiring extremely precise resistance values.
• Limited Temperature Range: The operating temperature range of -40°C to +85°C may restrict its use in extreme temperature environments.

Working Principles

The DS1859B-050+T&R/B utilizes a digital potentiometer circuit to adjust resistance. It consists of a series of resistive elements connected in a ladder configuration. By controlling the wiper position digitally, the effective resistance between the wiper terminal and other terminals can be adjusted.

Detailed Application Field Plans

The DS1859B-050+T&R/B finds applications in various fields, including: 1. Audio Equipment: Precise volume control in audio amplifiers and mixers. 2. Instrumentation: Fine-tuning of signal conditioning circuits and calibration setups. 3. Industrial Automation: Resistance adjustment in control systems and feedback loops. 4. Test and Measurement: Accurate resistance setting for calibration and testing purposes. 5. Consumer Electronics: Adjustable resistance in user interface controls, such as knobs and sliders.

Detailed and Complete Alternative Models

1. DS1859A-050+T&R/B: Similar to DS1859B-050+T&R/B but with a different package option.
2. DS1869B-050+T&R/B: Digital potentiometer IC with higher resolution and additional features.
3. MCP4131-502E/P: Alternative digital potentiometer IC from Microchip with similar specifications.

(Note: The above alternative models are provided for reference and may have slight differences in characteristics and pin configuration.)

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