X9421WS16IZ

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital Potentiometer
• Characteristics: Programmable, Non-volatile, Serial Interface
• Package: Surface Mount Technology (SMT)
• Essence: Adjustable Resistance Control
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Resolution: 256 Taps
• Resistance Range: 0 to 10kΩ
• Supply Voltage: 2.7V to 5.5V
• Interface: I2C
• Operating Temperature: -40°C to +85°C
• Package Dimensions: 3mm x 3mm

Detailed Pin Configuration

The X9421WS16IZ has a total of 8 pins:

1. VCC: Supply Voltage
2. GND: Ground
3. SDA: Serial Data Input/Output
4. SCL: Serial Clock Input
5. A0: Address Bit 0
6. A1: Address Bit 1
7. WP: Write Protect
8. H/L: High/Low Terminal

Functional Features

• Programmable resistance control with 256 discrete steps
• Non-volatile memory for storing the wiper position
• Serial interface for easy integration with microcontrollers
• Low power consumption
• Wide operating voltage range
• Compact surface mount package for space-constrained applications

Advantages and Disadvantages

Advantages: - Precise and accurate resistance adjustment - Retains settings even when power is disconnected - Easy to interface with digital systems - Suitable for low-power applications - Versatile operating voltage range

Disadvantages: - Limited resolution compared to some other digital potentiometers - Not suitable for high-power applications

Working Principles

The X9421WS16IZ is a digital potentiometer that allows the user to digitally control the resistance. It consists of a series of resistive elements connected in a ladder configuration. The wiper position determines the effective resistance between the input and output terminals. By programming the wiper position, the resistance can be adjusted digitally.

The non-volatile memory ensures that the wiper position is retained even when power is disconnected. This feature makes the X9421WS16IZ ideal for applications where the resistance setting needs to be preserved across power cycles.

Detailed Application Field Plans

The X9421WS16IZ finds applications in various fields, including:

1. Audio Equipment: Volume control, tone adjustment
2. Industrial Automation: Calibration, process control
3. Test and Measurement: Signal conditioning, calibration
4. Consumer Electronics: Display brightness control, user interface settings
5. Automotive: Climate control, dashboard controls

Detailed and Complete Alternative Models

1. X9421WS16IZ-2.5: Same specifications, but with a supply voltage range of 2.5V to 5.5V.
2. X9421WS16IZ-10: Same specifications, but with a resistance range of 0 to 10Ω.
3. X9421WS16IZ-512: Same specifications, but with a resolution of 512 Taps.

These alternative models provide options for different operating conditions and requirements.

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