AD5173BRMZ50

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital Potentiometer
• Characteristics: Programmable, Non-volatile, 50kΩ Resistance Range
• Package: 10-Lead MSOP (Mini Small Outline Package)
• Essence: AD5173BRMZ50 is a digital potentiometer IC that allows for programmable resistance values. It is non-volatile, meaning it retains its settings even when power is removed.
• Packaging/Quantity: The AD5173BRMZ50 is typically sold in reels of 250 units.

Specifications

• Resistance Range: 50kΩ
• Resolution: 256 Steps
• Interface: I2C (Inter-Integrated Circuit)
• Supply Voltage: 2.7V to 5.5V
• Temperature Range: -40°C to +125°C
• Non-Volatile Memory: Yes
• Wiper Current: 1mA (maximum)

Pin Configuration

The AD5173BRMZ50 has a total of 10 pins. The pin configuration is as follows:

1. VDD: Supply Voltage
2. SDA: Serial Data Input/Output (I2C)
3. SCL: Serial Clock Input (I2C)
4. GND: Ground
5. A0: Address Bit 0
6. A1: Address Bit 1
7. WP: Write Protect
8. H/L: High/Low Terminal of the Potentiometer
9. W: Wiper Terminal of the Potentiometer
10. VSS: Negative Supply Voltage

Functional Features

• Programmable resistance value with 256 steps resolution.
• Non-volatile memory ensures retention of settings during power-off.
• I2C interface allows for easy communication with microcontrollers.
• Write protect pin (WP) to prevent accidental changes to the resistance value.

Advantages and Disadvantages

Advantages: - Wide operating voltage range (2.7V to 5.5V). - Non-volatile memory eliminates the need for reprogramming on power-up. - High resolution allows for precise adjustment of resistance. - Small package size (MSOP) enables space-saving designs.

Disadvantages: - Limited resistance range (50kΩ). - Wiper current limitation may restrict certain applications.

Working Principles

The AD5173BRMZ50 is based on a digital potentiometer circuit. It consists of a series of resistive elements connected in a ladder-like configuration. The wiper terminal can be moved digitally to tap into different points along the resistor ladder, effectively changing the resistance value seen between the high and low terminals. The I2C interface allows for control and programming of the wiper position, enabling precise resistance adjustments.

Detailed Application Field Plans

The AD5173BRMZ50 finds applications in various fields, including:

1. Audio Equipment: Volume control, tone adjustment.
2. Industrial Automation: Calibration, sensor trimming.
3. Test and Measurement: Programmable resistance loads, signal conditioning.
4. Communication Systems: Gain control, impedance matching.
5. Automotive Electronics: Climate control, motor speed control.

Alternative Models

Here are some alternative models that offer similar functionality:

1. AD8400ARZ10: 10kΩ Resistance Range, 256 Steps Resolution, SOIC Package.
2. MCP4018T-503E/LT: 50kΩ Resistance Range, 257 Steps Resolution, SOT-23 Package.
3. MAX5486EUD+: 100kΩ Resistance Range, 256 Steps Resolution, TSSOP Package.

These alternative models can be considered based on specific requirements and design constraints.

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