DS1845E-050+ Product Overview

Basic Information

• Category: Electronic Component
• Use: Digital Potentiometer
• Characteristics: Programmable, Non-volatile Memory, Low Power Consumption
• Package: SOIC-8
• Essence: Adjustable Resistance Device
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Resistance Range: 50Ω
• Resolution: 256 Steps
• Supply Voltage: 2.7V to 5.5V
• Temperature Range: -40°C to +85°C
• End-to-End Resistance Tolerance: ±20%
• Wiper Resistance: 75Ω (typical)
• Non-volatile Memory: Yes
• Standby Current: 1µA (typical)

Detailed Pin Configuration

The DS1845E-050+ features an 8-pin Small Outline Integrated Circuit (SOIC) package with the following pin configuration:

┌───┬───┐ │ 1 │ 8 │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ 4 │ 5 │ └───┴───┘

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

Functional Features

• Programmable resistance allows for precise adjustment in electronic circuits.
• Non-volatile memory retains resistance settings even when power is disconnected.
• Low power consumption ensures energy efficiency in battery-powered applications.
• Serial interface enables easy integration with microcontrollers and digital systems.

Advantages and Disadvantages

Advantages: - Precise resistance adjustment for fine-tuning circuit performance. - Non-volatile memory eliminates the need for recalibration after power loss. - Low power consumption prolongs battery life in portable devices.

Disadvantages: - Limited resistance range may not be suitable for all applications. - End-to-end resistance tolerance of ±20% may impact accuracy in some cases.

Working Principles

The DS1845E-050+ is a digital potentiometer that utilizes a series of resistive elements to provide adjustable resistance. It employs non-volatile memory to store the resistance setting, ensuring that it remains unchanged even when power is disconnected. The device communicates with external systems through a serial interface, allowing for easy integration into various electronic circuits.

Detailed Application Field Plans

The DS1845E-050+ can be applied in various fields, including but not limited to:

1. Audio Equipment: Fine-tuning volume control and tone adjustments.
2. Industrial Control Systems: Precise resistance adjustment in control circuits.
3. Test and Measurement Instruments: Calibration and signal conditioning.
4. Automotive Electronics: Sensor calibration and control module adjustment.
5. Consumer Electronics: Circuit trimming and calibration.

Detailed and Complete Alternative Models

1. DS1804Z-050+: Similar specifications, different package (DIP-8).
2. MCP4017T-502E/LT: Higher resolution (1024 steps), wider temperature range (-40°C to +125°C).
3. AD8403ARUZ50: Multiple channels (4-channel), higher resolution (256 steps per channel).

Please note that the above list is not exhaustive, and there may be other alternative models available in the market.

This entry provides an overview of the DS1845E-050+ digital potentiometer, including its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.